Published November 19, 2023

Smart Motorized Window Blinds with Environmental Control

The project aims to solve several problems related to indoor comfort, energy efficiency, and convenience with automated solution.

IntermediateWork in progress401

Smart Motorized Window Blinds with Environmental Control

Things used in this project

Hardware components

Infineon PSoC™ 6 Wi-Fi BT Prototyping Kit (CY8CPROTO-062-4343W)

Infineon XMC4200 Platform2Go

Infineon XMC1300 Boot Kit

Infineon EVAL PASCO2 MINIBOARD

Infineon BLDC Shield IFX007T

Infineon S2GO MEMSMIC IM69D MEMS Microphone

Infineon S2GO 3D TLI493DW2BW-A0

Infineon S2GO HALL TLE4964-3M

Infineon S2GO PRESSURE DPS368

Software apps and online services

Arduino IDE

MicroPython

Cypress PSoC Creator

Hand tools and fabrication machines

3D Printer (generic)

Story

The Smart Motorized Window Blinds with Environmental Control project aims to solve several problems related to indoor comfort, energy efficiency, and convenience.

What are you going to build to solve this problem? How is it different from existing solutions? Why is it useful?

The project aims to develop a smart motorized window blinds system that can automatically adjust based on environmental conditions such as light intensity, temperature, and sound levels. The system will use the listed hardware components to sense the environment, control the motorized blinds, and provide additional functionality.

The Smart Motorized Window Blinds with Environmental Control project offers several advantages and differentiates itself from existing solutions in the following ways:

Customization and Flexibility: The project allows for customization and adaptability to specific environmental conditions and user preferences. The use of multiple sensor modules and the ability to adjust blinds based on various parameters such as light intensity, sound levels, and CO2 levels provide a more comprehensive and personalized control system compared to traditional blinds or manual adjustments.

Automation and Intelligence: The project automates the adjustment of blinds based on real-time data from sensors. It eliminates the need for manual operation and constant monitoring, providing a hassle-free experience for users. The system's intelligence enables it to make informed decisions regarding blind positions, optimizing indoor comfort and energy efficiency.

Energy Efficiency: By utilizing sensors to detect light intensity and adjusting the blinds accordingly, the project optimizes natural lighting, reducing the reliance on artificial lighting. Additionally, by closing the blinds during peak sunlight hours, it prevents excessive heat gain, reducing the workload on cooling systems and promoting energy efficiency.

Environmental Awareness: The integration of sensors for sound levels and CO2 levels enhances the project's ability to create a healthier and more comfortable indoor environment. It addresses concerns related to noise pollution and air quality, ensuring a more pleasant and conducive space for occupants.

Convenience and Modernization: The motorized blinds, controlled through a centralized system, offer convenience and ease of use. Users can effortlessly manage blind positions and customize preferences through a user-friendly interface. The automation and modernization provided by the project align with the increasing trend towards smart homes and automation technologies.

Overall, the Smart Motorized Window Blinds with Environmental Control project improves the efficiency, comfort, and convenience of managing window blinds. It leverages sensor data, automation, and customization to create a more intelligent and responsive system. By optimizing energy usage, enhancing privacy and security, and promoting a healthier indoor environment, the project offers distinct advantages over traditional blinds, enhancing the overall living or working experience for users.

The code is written in C language and uses the PSoC Creator IDE for the CY8CPROTO-062-4343W board and the DAVE IDE for the XMC4200 Platform2Go and XMC1300 Boot Kit boards. The code assumes that you have connected the sensor shields and the motor control shield to the respective boards. The code is divided into four main parts:

CY8CPROTO-062-4343W: This development board will serve as the central control unit for the project, handling communication, data processing, and control logic.

This program will initialize the Wi-Fi and Bluetooth modules, set up the communication protocols, and handle the data processing and control logic for CY8CPROTO-062-4343W.

// Include the libraries for I2C and SPI communication
#include <Wire.h>
#include <SPI.h>
// Define the I2C addresses for the XMC4200 Platform2Go and the XMC1300 Boot Kit
#define XMC4200_ADDR 0x10
#define XMC1300_ADDR 0x20
// Define the SPI pins for the S2GO MEMSMIC IM69D MEMS Microphone, the S2GO PRESSURE DPS368, and the S2GO 3D TLI493DW2BW-A0
#define MEMSMIC_CS 10
#define PRESSURE_CS 9
#define MAGNETIC_CS 8
// Define the digital pin for the S2GO HALL TLE4964-3M
#define HALL_PIN 2
// Define the PWM pins for the BLDC Shield IFX007T
#define BLDC_IN1 3
#define BLDC_IN2 5
#define BLDC_IN3 6
// Define the UART baud rate for the EVAL PASCO2 MINIBOARD
#define CO2_BAUD 9600
// Define some constants and variables for the sensor data and the control parameters
const int SOUND_THRESHOLD = 80; // The sound level threshold in dB for triggering the blinds to close
const int CO2_THRESHOLD = 1000; // The CO2 level threshold in ppm for triggering the blinds to open
const int TEMPERATURE_THRESHOLD = 25; // The temperature threshold in °C for triggering the blinds to adjust
const int LIGHT_THRESHOLD = 500; // The light intensity threshold in lux for triggering the blinds to adjust
const int BLINDS_OPEN = 0; // The position of the blinds when fully open
const int BLINDS_CLOSE = 180; // The position of the blinds when fully close
const int BLINDS_STEP = 10; // The step size for adjusting the blinds slats
int sound_level = 0; // The current sound level in dB
int co2_level = 0; // The current CO2 level in ppm
int temperature = 0; // The current temperature in °C
int pressure = 0; // The current pressure in hPa
int light_x = 0; // The current light intensity in the x-axis in lux
int light_y = 0; // The current light intensity in the y-axis in lux
int light_z = 0; // The current light intensity in the z-axis in lux
int blinds_position = 0; // The current position of the blinds
bool hall_state = false; // The current state of the hall sensor
// Declare the Wi-Fi and MQTT variables
cy_wcm_ip_address_t ip_address;
cy_wcm_config_t wifi_config;
cy_wcm_connect_params_t connect_param;
cy_mqtt_t mqtt_handle;
cy_mqtt_connect_info_t mqtt_connect_info;
cy_mqtt_publish_info_t mqtt_publish_info;
cy_mqtt_event_t mqtt_event;
// Declare the Bluetooth variables
wiced_bt_device_address_t device_address;
wiced_bt_gatt_status_t gatt_status;
wiced_bt_gatt_attribute_t gatt_attribute;
wiced_bt_gatt_value_t gatt_value;
wiced_bt_gatt_data_t gatt_data;
// Declare the sensor and motor variables
cyhal_i2c_t i2c;
cyhal_i2c_cfg_t i2c_config;
cyhal_pwm_t pwm;
uint8_t sensor_data[8];
uint16_t co2;
uint16_t pressure;
uint16_t temperature;
uint16_t sound;
uint16_t magnetic;
uint8_t motor_command;
// Define the Wi-Fi callback function
void wifi_callback(cy_wcm_event_t event, cy_wcm_event_data_t *event_data)
{
switch (event)
{
case CY_WCM_EVENT_CONNECT_SUCCESS:
printf("Wi-Fi connected successfully\r\n");
break;
case CY_WCM_EVENT_CONNECT_FAILURE:
printf("Wi-Fi connection failed\r\n");
break;
case CY_WCM_EVENT_DISCONNECTED:
printf("Wi-Fi disconnected\r\n");
break;
default:
printf("Wi-Fi unknown event\r\n");
break;
}
}
// Define the MQTT callback function
void mqtt_callback(cy_mqtt_event_t event, void *callback_arg, cy_mqtt_event_info_t *event_info)
{
switch (event)
{
case CY_MQTT_EVENT_TYPE_CONNECTED:
printf("MQTT connected successfully\r\n");
break;
case CY_MQTT_EVENT_TYPE_DISCONNECTED:
printf("MQTT disconnected\r\n");
break;
case CY_MQTT_EVENT_TYPE_PUBLISH_RECEIVE:
printf("MQTT message received\r\n");
break;
case CY_MQTT_EVENT_TYPE_SUBSCRIBE_RESPONSE:
printf("MQTT subscribed successfully\r\n");
break;
case CY_MQTT_EVENT_TYPE_UNSUBSCRIBE_RESPONSE:
printf("MQTT unsubscribed successfully\r\n");
break;
case CY_MQTT_EVENT_TYPE_PUBLISH_RESPONSE:
printf("MQTT published successfully\r\n");
break;
default:
printf("MQTT unknown event\r\n");
break;
}
}
// Define the Bluetooth management callback function
wiced_bt_dev_status_t bluetooth_management_callback(wiced_bt_management_evt_t event, wiced_bt_management_evt_data_t *event_data)
{
switch (event)
{
case BTM_ENABLED_EVT:
printf("Bluetooth enabled\r\n");
wiced_bt_dev_read_local_addr(device_address);
wiced_bt_set_device_name(BLUETOOTH_DEVICE_NAME);
wiced_bt_gatt_register(bluetooth_gatt_callback);
wiced_bt_gatt_db_init(gatt_attribute, sizeof(gatt_attribute));
break;
case BTM_DISABLED_EVT:
printf("Bluetooth disabled\r\n");
break;
case BTM_PAIRING_IO_CAPABILITIES_BLE_REQUEST_EVT:
printf("Bluetooth pairing request\r\n");
event_data->pairing_io_capabilities_ble_request.local_io_cap = BTM_IO_CAPABILITIES_NONE;
event_data->pairing_io_capabilities_ble_request.oob_data = BTM_OOB_NONE;
event_data->pairing_io_capabilities_ble_request.auth_req = BTM_LE_AUTH_REQ_NO_BOND;
event_data->pairing_io_capabilities_ble_request.max_key_size = 0x10;
event_data->pairing_io_capabilities_ble_request.init_keys = 0;
event_data->pairing_io_capabilities_ble_request.resp_keys = 0;
break;
case BTM_PAIRED_DEVICE_LINK_KEYS_UPDATE_EVT:
printf("Bluetooth link keys updated\r\n");
break;
case BTM_PAIRED_DEVICE_LINK_KEYS_REQUEST_EVT:
printf("Bluetooth link keys requested\r\n");
return WICED_BT_ERROR;
case BTM_LOCAL_IDENTITY_KEYS_UPDATE_EVT:
printf("Bluetooth identity keys updated\r\n");
break;
case BTM_LOCAL_IDENTITY_KEYS_REQUEST_EVT:
printf("Bluetooth identity keys requested\r\n");
return WICED_BT_ERROR;
case BTM_BLE_ADVERT_STATE_CHANGED_EVT:
printf("Bluetooth advertising state changed\r\n");
break;
default:
printf("Bluetooth unknown event\r\n");
break;
}
return WICED_BT_SUCCESS;
}
// Define the Bluetooth GATT callback function
wiced_bt_gatt_status_t bluetooth_gatt_callback(wiced_bt_gatt_evt_t event, wiced_bt_gatt_event_data_t *event_data)
{
switch (event)
{
case GATT_CONNECTION_STATUS_EVT:
printf("Bluetooth GATT connection status\r\n");
if (event_data->connection_status.connected)
{
printf("Bluetooth GATT connected\r\n");
}
else
{
printf("Bluetooth GATT disconnected\r\n");
}
break;
case GATT_ATTRIBUTE_REQUEST_EVT:
printf("Bluetooth GATT attribute request\r\n");
if (event_data->attribute_request.request_type == GATTS_REQ_TYPE_READ)
{
printf("Bluetooth GATT read request\r\n");
gatt_status = wiced_bt_gatt_server_send_attribute_value(event_data->attribute_request.conn_id, event_data->attribute_request.data.read_req.handle, 0, sizeof(gatt_value), gatt_value);
}
else if (event_data->attribute_request.request_type == GATTS_REQ_TYPE_WRITE)
{
printf("Bluetooth GATT write request\r\n");
gatt_data = event_data->attribute_request.data.write_req;
gatt_status = wiced_bt_gatt_server_send_write_rsp(event_data->attribute_request.conn_id, gatt_data.handle, gatt_data.is_prep, gatt_data.offset, gatt_data.val_len, gatt_data.p_val);
motor_command = gatt_data.p_val[0];
}
else
{
printf("Bluetooth GATT unknown request\r\n");
gatt_status = WICED_BT_GATT_ERROR;
}
break;
default:
printf("Bluetooth GATT unknown event\r\n");
gatt_status = WICED_BT_GATT_ERROR;
break;
}
return gatt_status;
}
// Define the main function
int main(void)
{
// Initialize the board and the UART
cy_rslt_t result;
result = cybsp_init();
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cy_retarget_io_init(CYBSP_DEBUG_UART_TX, CYBSP_DEBUG_UART_RX, CY_RETARGETIO_BAUDRATE);
CY_ASSERT(result == CY_RSLT_SUCCESS);
// Initialize the Wi-Fi and the MQTT
wifi_config.interface = CY_WCM_INTERFACE_TYPE_STA;
wifi_config.wcm_event_handler = wifi_callback;
result = cy_wcm_init(&wifi_config);
CY_ASSERT(result == CY_RSLT_SUCCESS);
strcpy(connect_param.ap_ssid, WIFI_SSID);
strcpy(connect_param.ap_password, WIFI_PASSWORD);
connect_param.ap_security = WIFI_SECURITY;
result = cy_wcm_connect_ap(&connect_param, &ip_address);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cy_mqtt_init();
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cy_mqtt_create(&mqtt_handle, &mqtt_event, mqtt_callback, NULL);
CY_ASSERT(result == CY_RSLT_SUCCESS);
mqtt_connect_info.client_id = MQTT_CLIENT_ID;
mqtt_connect_info.username = MQTT_USERNAME;
mqtt_connect_info.password = MQTT_PASSWORD;
mqtt_connect_info.keep_alive_sec = 60;
mqtt_connect_info.clean_session = true;
mqtt_connect_info.will_info = NULL;
result = cy_mqtt_connect(mqtt_handle, MQTT_BROKER_ADDRESS, MQTT_BROKER_PORT, &mqtt_connect_info);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cy_mqtt_subscribe(mqtt_handle, MQTT_TOPIC, CY_MQTT_QOS0);
CY_ASSERT(result == CY_RSLT_SUCCESS);
// Initialize the Bluetooth
wiced_bt_stack_init(bluetooth_management_callback, NULL, NULL);
gatt_attribute.handle = 0x0001;
gatt_attribute.uuid.len = LEN_UUID_16;
gatt_attribute.uuid.uu.uuid16 = BLUETOOTH_SERVICE_UUID;
gatt_value.len = sizeof(BLUETOOTH_DEVICE_NAME);
gatt_value.p_val = (uint8_t *)BLUETOOTH_DEVICE_NAME;
// Initialize the I2C and the PWM
i2c_config.is_slave = false;
i2c_config.address = 0;
i2c_config.frequencyhal_hz = 100000;
result = cyhal_i2c_init(&i2c, SENSOR_I2C_SDA, SENSOR_I2C_SCL, NULL);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cyhal_i2c_configure(&i2c, &i2c_config);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cyhal_pwm_init(&pwm, MOTOR_PWM, NULL);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cyhal_pwm_set_duty_cycle(&pwm, MOTOR_DUTY_CYCLE, 1000);
CY_ASSERT(result == CY_RSLT_SUCCESS);
cyhal_pwm_start(&pwm);
// Start the main loop
for (;;)
{
// Read the sensor data from the XMC4200 Platform2Go via I2C
sensor_data[0] = SENSOR_CO2_COMMAND;
result = cyhal_i2c_master_write(&i2c, XMC4200_ADDR, sensor_data, 1, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cyhal_i2c_master_read(&i2c, XMC4200_ADDR, sensor_data, 2, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
co2 = (sensor_data[0] << 8) | sensor_data[1];
sensor_data[0] = SENSOR_PRESSURE_COMMAND;
result = cyhal_i2c_master_write(&i2c, XMC4200_ADDR, sensor_data, 1, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cyhal_i2c_master_read(&i2c, XMC4200_ADDR, sensor_data, 2, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
pressure = (sensor_data[0] << 8) | sensor_data[1];
sensor_data[0] = SENSOR_TEMPERATURE_COMMAND;
result = cyhal_i2c_master_write(&i2c, XMC4200_ADDR, sensor_data, 1, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cyhal_i2c_master_read(&i2c, XMC4200_ADDR, sensor_data, 2, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
temperature = (sensor_data[0] << 8) | sensor_data[1];
sensor_data[0] = SENSOR_SOUND_COMMAND;
result = cyhal_i2c_master_write(&i2c, XMC4200_ADDR, sensor_data, 1, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cyhal_i2c_master_read(&i2c, XMC4200_ADDR, sensor_data, 2, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
sound = (sensor_data[0] << 8) | sensor_data[1];
sensor_data[0] = SENSOR_MAGNETIC_COMMAND;
result = cyhal_i2c_master_write(&i2c, XMC4200_ADDR, sensor_data, 1, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cyhal_i2c_master_read(&i2c, XMC4200_ADDR, sensor_data, 6, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
magnetic = (sensor_data[0] << 8) | sensor_data[1];
light_x = (sensor_data[2] << 8) | sensor_data[3];
light_y = (sensor_data[4] << 8) | sensor_data[5];
// Read the hall state from the S2GO HALL TLE4964-3M via digital input
hall_state = cyhal_gpio_read(HALL_PIN);
// Print the sensor data to the UART
printf("CO2 level: %d ppm\r\n", co2);
printf("Pressure: %d hPa\r\n", pressure);
printf("Temperature: %d °C\r\n", temperature);
printf("Sound level: %d dB\r\n", sound);
printf("Magnetic field: %d mT\r\n", magnetic);
printf("Light intensity: %d %d %d lux\r\n", light_x, light_y, light_z);
printf("Hall state: %d\r\n", hall_state);
// Publish the sensor data to the MQTT broker
mqtt_publish_info.qos = CY_MQTT_QOS0;
mqtt_publish_info.retain = false;
mqtt_publish_info.topic = MQTT_TOPIC;
sprintf(mqtt_publish_info.payload, "%d,%d,%d,%d,%d,%d,%d,%d", co2, pressure, temperature, sound, magnetic, light_x, light_y, light_z);
mqtt_publish_info.payload_len = strlen(mqtt_publish_info.payload);
result = cy_mqtt_publish(mqtt_handle, &mqtt_publish_info);
CY_ASSERT(result == CY_RSLT_SUCCESS);
// Adjust the blinds based on the sensor data and the user preferences
if (motor_command == MOTOR_OPEN_COMMAND) // open the blinds
{
blinds_position = BLINDS_OPEN;
cyhal_pwm_set_duty_cycle(&pwm, MOTOR_DUTY_CYCLE, 1000);
cyhal_gpio_write(BLDC_IN1, 1);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
while (!hall_state)
{
hall_state = cyhal_gpio_read(HALL_PIN);
}
cyhal_pwm_stop(&pwm);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
}
else if (motor_command == MOTOR_CLOSE_COMMAND) // close the blinds
{
blinds_position = BLINDS_CLOSE;
cyhal_pwm_set_duty_cycle(&pwm, MOTOR_DUTY_CYCLE, 1000);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 1);
cyhal_gpio_write(BLDC_IN3, 0);
while (!hall_state)
{
hall_state = cyhal_gpio_read(HALL_PIN);
}
cyhal_pwm_stop(&pwm);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
}
else if (motor_command == MOTOR_ADJUST_COMMAND) // adjust the blinds
{
if (co2 > CO2_THRESHOLD) // too stuffy
{
blinds_position = BLINDS_OPEN;
cyhal_pwm_set_duty_cycle(&pwm, MOTOR_DUTY_CYCLE, 1000);
cyhal_gpio_write(BLDC_IN1, 1);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
while (!hall_state)
{
hall_state = cyhal_gpio_read(HALL_PIN);
}
cyhal_pwm_stop(&pwm);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
}
else if (temperature > TEMPERATURE_THRESHOLD) // too hot
{
blinds_position = BLINDS_CLOSE;
cyhal_pwm_set_duty_cycle(&pwm, MOTOR_DUTY_CYCLE, 1000);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 1);
cyhal_gpio_write(BLDC_IN3, 0);
while (!hall_state)
{
hall_state = cyhal_gpio_read(HALL_PIN);
}
cyhal_pwm_stop(&pwm);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
}
else if (sound > SOUND_THRESHOLD) // too noisy
{
blinds_position = BLINDS_CLOSE;
cyhal_pwm_set_duty_cycle(&pwm, MOTOR_DUTY_CYCLE, 1000);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 1);
cyhal_gpio_write(BLDC_IN3, 0);
while (!hall_state)
{
hall_state = cyhal_gpio_read(HALL_PIN);
}
cyhal_pwm_stop(&pwm);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
}
else if (magnetic > MAGNETIC_THRESHOLD) // too bright
{
blinds_position = BLINDS_CLOSE;
cyhal_pwm_set_duty_cycle(&pwm, MOTOR_DUTY_CYCLE, 1000);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 1);
cyhal_gpio_write(BLDC_IN3, 0);
while (!hall_state)
{
hall_state = cyhal_gpio_read(HALL_PIN);
}
cyhal_pwm_stop(&pwm);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
}
else // optimal conditions
{
blinds_position = BLINDS_OPEN;
cyhal_pwm_set_duty_cycle(&pwm, MOTOR_DUTY_CYCLE, 1000);
cyhal_gpio_write(BLDC_IN1, 1);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
while (!hall_state)
{
hall_state = cyhal_gpio_read(HALL_PIN);
}
cyhal_pwm_stop(&pwm);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
}

XMC4200 Platform2Go: This kit will be used to interface with the sensor modules and control the motorized blinds.

For the XMC4200 Platform2Go kit
This program will initialize the SPI communication, read the sensor data from the shields, and send the data to the CY8CPROTO-062-4343W board via I2C

// Include the libraries for SPI communication
#include <SPI.h>
#include <Wire.h>

// Define the SPI pins for the S2GO MEMSMIC IM69D MEMS Microphone, the S2GO PRESSURE DPS368, and the S2GO 3D TLI493DW2BW-A0
#define MEMSMIC_CS 10
#define PRESSURE_CS 9
#define MAGNETIC_CS 8

// Define the I2C address for the CY8CPROTO-062-4343W board
#define CY8CPROTO_ADDR 0x10

// Define some constants and variables for the sensor data
const int SOUND_SCALE = 256; // The scale factor for converting the sound level to dB
int sound_level = 0; // The current sound level in dB
int pressure = 0; // The current pressure in hPa
int temperature = 0; // The current temperature in °C
int magnetic_x = 0; // The current magnetic field in the x-axis in mT
int magnetic_y = 0; // The current magnetic field in the y-axis in mT
int magnetic_z = 0; // The current magnetic field in the z-axis in mT
int light_x = 0; // The current light intensity in the x-axis in lux
int light_y = 0; // The current light intensity in the y-axis in lux
int light_z = 0; // The current light intensity in the z-axis in lux
byte sensor_data[8]; // The buffer for storing the sensor data

void setup() {
  // Initialize the SPI communication
  SPI.begin();
  // Initialize the I2C communication
  Wire.begin();
  // Initialize the digital output
  pinMode(MEMSMIC_CS, OUTPUT);
  pinMode(PRESSURE_CS, OUTPUT);
  pinMode(MAGNETIC_CS, OUTPUT);
  // Set the chip select pins to high
  digitalWrite(MEMSMIC_CS, HIGH);
  digitalWrite(PRESSURE_CS, HIGH);
  digitalWrite(MAGNETIC_CS, HIGH);
}

void loop() {
  // Read the sound level from the S2GO MEMSMIC IM69D MEMS Microphone via SPI
  sound_level = readSoundLevel();
  // Read the pressure and temperature from the S2GO PRESSURE DPS368 via SPI
  pressure = readPressure();
  temperature = readTemperature();
  // Read the magnetic field and light intensity from the S2GO 3D TLI493DW2BW-A0 via SPI
  magnetic_x = readMagneticX();
  magnetic_y = readMagneticY();
  magnetic_z = readMagneticZ();
  light_x = readLightX();
  light_y = readLightY();
  light_z = readLightZ();
  // Send the sensor data to the CY8CPROTO-062-4343W board via I2C
  sensor_data[0] = (sound_level >> 8) & 0xFF;
  sensor_data[1] = sound_level & 0xFF;
  sensor_data[2] = (pressure >> 8) & 0xFF;
  sensor_data[3] = pressure & 0xFF;
  sensor_data[4] = (temperature >> 8) & 0xFF;
  sensor_data[5] = temperature & 0xFF;
  sensor_data[6] = (magnetic_x >> 8) & 0xFF;
  sensor_data[7] = magnetic_x & 0xFF;
  Wire.beginTransmission(CY8CPROTO_ADDR);
  Wire.write(sensor_data, 8);
  Wire.endTransmission();
  sensor_data[0] = (magnetic_y >> 8) & 0xFF;
  sensor_data[1] = magnetic_y & 0xFF;
  sensor_data[2] = (magnetic_z >> 8) & 0xFF;
  sensor_data[3] = magnetic_z & 0xFF;
  sensor_data[4] = (light_x >> 8) & 0xFF;
  sensor_data[5] = light_x & 0xFF;
  sensor_data[6] = (light_y >> 8) & 0xFF;
  sensor_data[7] = light_y & 0xFF;
  Wire.beginTransmission(CY8CPROTO_ADDR);
  Wire.write(sensor_data, 8);
  Wire.endTransmission();
  sensor_data[0] = (light_z >> 8) & 0xFF;
  sensor_data[1] = light_z & 0xFF;
  Wire.beginTransmission(CY8CPROTO_ADDR);
  Wire.write(sensor_data, 2);
  Wire.endTransmission();
  // Wait for 1 second
  delay(1000);
}

S2GO MEMSMIC IM69D MEMS Microphone: This shield will be used to detect sound levels inside the room. It can be used to trigger the blinds to close if the sound levels exceed a certain threshold, providing noise isolation.

Function to read the sound level from the S2GO MEMSMIC IM69D MEMS Microphone via SPI

int readSoundLevel() {
  // Select the MEMSMIC_CS pin
  digitalWrite(MEMSMIC_CS, LOW);
  // Send a dummy byte to start the SPI communication
  SPI.transfer(0x00);
  // Read the high byte of the sound level
  byte high_byte = SPI.transfer(0x00);
  // Read the low byte of the sound level
  byte low_byte = SPI.transfer(0x00);
  // Deselect the MEMSMIC_CS pin
  digitalWrite(MEMSMIC_CS, HIGH);
  // Combine the high and low bytes to get the 16-bit sound level
  int sound_level = (high_byte << 8) | low_byte;
  // Convert the sound level to dB
  sound_level = sound_level / SOUND_SCALE;
  // Return the sound level
  return sound_level;
}

S2GO PRESSURE DPS368: This shield will be utilized to measure the barometric pressure and temperature inside the room. The data can be used to determine if the room needs ventilation or if the blinds should be adjusted to control the temperature.

Function to read the pressure and temperature from the S2GO PRESSURE DPS368 via SPI

int readPressure() {
  // Select the PRESSURE_CS pin
  digitalWrite(PRESSURE_CS, LOW);
  // Send the command byte to read the pressure
  SPI.transfer(0x00);
  // Read the high byte of the pressure
  byte high_byte = SPI.transfer(0x00);
  // Read the low byte of the pressure
  byte low_byte = SPI.transfer(0x00);
  // Deselect the PRESSURE_CS pin
  digitalWrite(PRESSURE_CS, HIGH);
  // Combine the high and low bytes to get the 16-bit pressure
  int pressure = (high_byte << 8) | low_byte;
  // Return the pressure
  return pressure;
}

int readTemperature() {
  // Select the PRESSURE_CS pin
  digitalWrite(PRESSURE_CS, LOW);
  // Send the command byte to read the temperature
  SPI.transfer(0x01);
  // Read the high byte of the temperature
  byte high_byte = SPI.transfer(0x00);
  // Read the low byte of the temperature
  byte low_byte = SPI.transfer(0x00);
  // Deselect the PRESSURE_CS pin
  digitalWrite(PRESSURE_CS, HIGH);
  // Combine the high and low bytes to get the 16-bit temperature
  int temperature = (high_byte << 8) | low_byte;
  // Return the temperature
  return temperature;
}

S2GO 3D TLI493DW2BW-A0: This shield can be used to detect the position of the sun by sensing the magnetic field. It will help determine the light intensity in the room and trigger the blinds to open or close accordingly

Function to read the magnetic field and light intensity from the S2GO 3D TLI493DW2BW-A0 via SPI

int readMagneticX() {
  // Select the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, LOW);
  // Send the command byte to read the magnetic field in the x-axis
  SPI.transfer(0x00);
  // Read the high byte of the magnetic field in the x-axis
  byte high_byte = SPI.transfer(0x00);
  // Read the low byte of the magnetic field in the x-axis
  byte low_byte = SPI.transfer(0x00);
  // Deselect the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, HIGH);
  // Combine the high and low bytes to get the 16-bit magnetic field in the x-axis
  int magnetic_x = (high_byte << 8) | low_byte;
  // Return the magnetic field in the x-axis
  return magnetic_x;
}

int readMagneticY() {
  // Select the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, LOW);
  // Send the command byte to read the magnetic field in the y-axis
  SPI.transfer(0x01);
  // Read the high byte of the magnetic field in the y-axis
  byte high_byte = SPI.transfer(0x00);
  // Read the low byte of the magnetic field in the y-axis
  byte low_byte = SPI.transfer(0x00);
  // Deselect the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, HIGH);
  // Combine the high and low bytes to get the 16-bit magnetic field in the y-axis
  int magnetic_y = (high_byte << 8) | low_byte;
  // Return the magnetic field in the y-axis
  return magnetic_y;
}

int readMagneticZ() {
  // Select the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, LOW);
  // Send the command byte to read the magnetic field in the z-axis
  SPI.transfer(0x02);
  // Read the high byte of the magnetic field in the z-axis
  byte high_byte = SPI.transfer(0x00);
  // Read the low byte of the magnetic
field in the z-axis
  byte low_byte = SPI.transfer(0x00);
  // Deselect the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, HIGH);
  // Combine the high and low bytes to get the 16-bit magnetic field in the z-axis
  int magnetic_z = (high_byte << 8) | low_byte;
  // Return the magnetic field in the z-axis
  return magnetic_z;
}

int readLightX() {
  // Select the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, LOW);
  // Send the command byte to read the light intensity in the x-axis
  SPI.transfer(0x03);
  // Read the high byte of the light intensity in the x-axis
  byte high_byte = SPI.transfer(0x00);
  // Read the low byte of the light intensity in the x-axis
  byte low_byte = SPI.transfer(0x00);
  // Deselect the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, HIGH);
  // Combine the high and low bytes to get the 16-bit light intensity in the x-axis
  int light_x = (high_byte << 8) | low_byte;
  // Return the light intensity in the x-axis
  return light_x;
}

int readLightY() {
  // Select the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, LOW);
  // Send the command byte to read the light intensity in the y-axis
  SPI.transfer(0x04);
  // Read the high byte of the light intensity in the y-axis
  byte high_byte = SPI.transfer(0x00);
  // Read the low byte of the light intensity in the y-axis
  byte low_byte = SPI.transfer(0x00);
  // Deselect the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, HIGH);
  // Combine the high and low bytes to get the 16-bit light intensity in the y-axis
  int light_y = (high_byte << 8) | low_byte;
  // Return the light intensity in the y-axis
  return light_y;
}

int readLightZ() {
  // Select the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, LOW);
  // Send the command byte to read the light intensity in the z-axis
  SPI.transfer(0x05);
  // Read the high byte of the light intensity in the z-axis
  byte high_byte = SPI.transfer(0x00);
  // Read the low byte of the light intensity in the z-axis
  byte low_byte = SPI.transfer(0x00);
  // Deselect the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, HIGH);
  // Combine the high and low bytes to get the 16-bit light intensity in the z-axis
  int light_z = (high_byte << 8) | low_byte;
  // Return the light intensity in the z-axis
  return light_z;
}

EVAL PASCO2 MINIBOARD: This mini board incorporates a CO2 sensor, which can be used to monitor the air quality inside the room. If the CO2 levels exceed a certain threshold, the blinds can be adjusted to allow fresh air to enter.

For the EVAL PASCO2 MINIBOARD
This program will initialize the UART communication, read the CO2 level from the sensor, and send the data to the CY8CPROTO-062-4343W board via UART

// Define the UART pins
#define UART_TX P0_5
#define UART_RX P0_4

// Define the UART baud rate
#define UART_BAUD 9600

// Define the CO2 sensor parameters
#define CO2_START_BYTE 0xFF
#define CO2_SENSOR_ID 0x01
#define CO2_END_BYTE 0xFE

// Declare the CO2 sensor variables
uint8_t co2_data[8];
uint16_t co2;
uint8_t checksum;

void setup() {
  // Initialize the UART communication
  Serial.begin(UART_BAUD);
}

void loop() {
  // Read the CO2 level from the sensor via UART
  if (Serial.available() > 0)
  {
    // Read the first byte of the data
    co2_data[0] = Serial.read();
    // Check if the first byte is the start byte
    if (co2_data[0] == CO2_START_BYTE)
    {
      // Read the second byte of the data
      co2_data[1] = Serial.read();
      // Check if the second byte is the sensor ID
      if (co2_data[1] == CO2_SENSOR_ID)
      {
        // Read the third byte of the data
        co2_data[2] = Serial.read();
        // Read the fourth byte of the data
        co2_data[3] = Serial.read();
        // Read the fifth byte of the data
        co2_data[4] = Serial.read();
        // Read the sixth byte of the data
        co2_data[5] = Serial.read();
        // Read the seventh byte of the data
        co2_data[6] = Serial.read();
        // Read the eighth byte of the data
        co2_data[7] = Serial.read();
        // Check if the eighth byte is the end byte
        if (co2_data[7] == CO2_END_BYTE)
        {
          // Calculate the checksum of the data
          checksum = (co2_data[1] + co2_data[2] + co2_data[3] + co2_data[4] + co2_data[5] + co2_data[6]) % 256;
          // Check if the checksum matches the fifth byte
          if (checksum == co2_data[4])
          {
            // Combine the third and fourth bytes to get the 16-bit CO2 level
            co2 = (co2_data[2] << 8) | co2_data[3];
          }
        }
      }
    }
  }
  // Send the CO2 level to the CY8CPROTO-062-4343W board via UART
  Serial.write(CO2_START_BYTE);
  Serial.write(CO2_SENSOR_ID);
  Serial.write((co2 >> 8) & 0xFF);
  Serial.write(co2 & 0xFF);
  Serial.write(checksum);
  Serial.write(0x00);
  Serial.write(0x00);
  Serial.write(CO2_END_BYTE);
  // Wait for 1 second
  delay(1000);
}

BLDC Shield IFX007T: This motor control shield can be used to control the motorized blinds, allowing them to open, close, or adjust the slats based on the environmental conditions and user preferences.

For the XMC1300 Boot Kit
This program will initialize the digital output, receive the motor command from the CY8CPROTO-062-4343W board via I2C, and control the motorized blinds via the BLDC Shield IFX007T

// Include the library for I2C communication
#include <Wire.h>

// Define the I2C address for the CY8CPROTO-062-4343W board
#define CY8CPROTO_ADDR 0x10

// Define the digital pins for the BLDC Shield IFX007T
#define BLDC_IN1 3
#define BLDC_IN2 5
#define BLDC_IN3 6

// Define the motor commands
#define MOTOR_OPEN_COMMAND 0x01
#define MOTOR_CLOSE_COMMAND 0x02
#define MOTOR_ADJUST_COMMAND 0x03

// Define the motor parameters
#define MOTOR_DUTY_CYCLE 50 // %
#define MOTOR_DELAY 1000 // ms
#define MOTOR_STEP 10 // degrees

// Declare the motor variable
uint8_t motor_command;

void setup() {
  // Initialize the I2C communication
  Wire.begin();
  // Initialize the digital output
  pinMode(BLDC_IN1, OUTPUT);
  pinMode(BLDC_IN2, OUTPUT);
  pinMode(BLDC_IN3, OUTPUT);
}

void loop() {
  // Receive the motor command from the CY8CPROTO-062-4343W board via I2C
  Wire.requestFrom(CY8CPROTO_ADDR, 1);
  if (Wire.available())
  {
    motor_command = Wire.read();
  }
  // Control the motorized blinds via the BLDC Shield IFX007T
  if (motor_command == MOTOR_OPEN_COMMAND) // open the blinds
  {
    analogWrite(BLDC_IN1, MOTOR_DUTY_CYCLE);
    analogWrite(BLDC_IN2, 0);
    analogWrite(BLDC_IN3, 0);
    delay(MOTOR_DELAY);
    analogWrite(BLDC_IN1, 0);
    analogWrite(BLDC_IN2, 0);
    analogWrite(BLDC_IN3, 0);
  }
  else if (motor_command == MOTOR_CLOSE_COMMAND) // close the blinds
  {
    analogWrite(BLDC_IN1, 0);
    analogWrite(BLDC_IN2, MOTOR_DUTY_CYCLE);
    analogWrite(BLDC_IN3, 0);
    delay(MOTOR_DELAY);
    analogWrite(BLDC_IN1, 0);
    analogWrite(BLDC_IN2, 0);
    analogWrite(BLDC_IN3, 0);
  }
  else if (motor_command == MOTOR_ADJUST_COMMAND) // adjust the blinds
  {
    analogWrite(BLDC_IN1, 0);
    analogWrite(BLDC_IN2, 0);
    analogWrite(BLDC_IN3, MOTOR_DUTY_CYCLE);
    delay(MOTOR_STEP);
    analogWrite(BLDC_IN1, 0);
    analogWrite(BLDC_IN2, 0);
    analogWrite(BLDC_IN3, 0);
  }
}

future work: not complete

// Include the libraries for I2C and SPI communication
#include <Wire.h>
#include <SPI.h>
// Define the I2C addresses for the XMC4200 Platform2Go and the XMC1300 Boot Kit
#define XMC4200_ADDR 0x10
#define XMC1300_ADDR 0x20
// Define the SPI pins for the S2GO MEMSMIC IM69D MEMS Microphone, the S2GO PRESSURE DPS368, and the S2GO 3D TLI493DW2BW-A0
#define MEMSMIC_CS 10
#define PRESSURE_CS 9
#define MAGNETIC_CS 8
// Define the digital pin for the S2GO HALL TLE4964-3M
#define HALL_PIN 2
// Define the PWM pins for the BLDC Shield IFX007T
#define BLDC_IN1 3
#define BLDC_IN2 5
#define BLDC_IN3 6
// Define the UART baud rate for the EVAL PASCO2 MINIBOARD
#define CO2_BAUD 9600
// Define some constants and variables for the sensor data and the control parameters
const int SOUND_THRESHOLD = 80; // The sound level threshold in dB for triggering the blinds to close
const int CO2_THRESHOLD = 1000; // The CO2 level threshold in ppm for triggering the blinds to open
const int TEMPERATURE_THRESHOLD = 25; // The temperature threshold in C for triggering the blinds to adjust
const int LIGHT_THRESHOLD = 500; // The light intensity threshold in lux for triggering the blinds to adjust
const int BLINDS_OPEN = 0; // The position of the blinds when fully open
const int BLINDS_CLOSE = 180; // The position of the blinds when fully close
const int BLINDS_STEP = 10; // The step size for adjusting the blinds slats
int sound_level = 0; // The current sound level in dB
int co2_level = 0; // The current CO2 level in ppm
int temperature = 0; // The current temperature in C
int pressure = 0; // The current pressure in hPa
int light_x = 0; // The current light intensity in the x-axis in lux
int light_y = 0; // The current light intensity in the y-axis in lux
int light_z = 0; // The current light intensity in the z-axis in lux
int blinds_position = 0; // The current position of the blinds
bool hall_state = false; // The current state of the hall sensor
// Declare the Wi-Fi and MQTT variables
cy_wcm_ip_address_t ip_address;
cy_wcm_config_t wifi_config;
cy_wcm_connect_params_t connect_param;
cy_mqtt_t mqtt_handle;
cy_mqtt_connect_info_t mqtt_connect_info;
cy_mqtt_publish_info_t mqtt_publish_info;
cy_mqtt_event_t mqtt_event;
// Declare the Bluetooth variables
wiced_bt_device_address_t device_address;
wiced_bt_gatt_status_t gatt_status;
wiced_bt_gatt_attribute_t gatt_attribute;
wiced_bt_gatt_value_t gatt_value;
wiced_bt_gatt_data_t gatt_data;
// Declare the sensor and motor variables
cyhal_i2c_t i2c;
cyhal_i2c_cfg_t i2c_config;
cyhal_pwm_t pwm;
uint8_t sensor_data[8];
uint16_t co2;
uint16_t pressure;
uint16_t temperature;
uint16_t sound;
uint16_t magnetic;
uint8_t motor_command;
// Define the Wi-Fi callback function
void wifi_callback(cy_wcm_event_t event, cy_wcm_event_data_t *event_data)
{
switch (event)
{
case CY_WCM_EVENT_CONNECT_SUCCESS:
printf("Wi-Fi connected successfully\r\n");
break;
case CY_WCM_EVENT_CONNECT_FAILURE:
printf("Wi-Fi connection failed\r\n");
break;
case CY_WCM_EVENT_DISCONNECTED:
printf("Wi-Fi disconnected\r\n");
break;
default:
printf("Wi-Fi unknown event\r\n");
break;
}
}
// Define the MQTT callback function
void mqtt_callback(cy_mqtt_event_t event, void *callback_arg, cy_mqtt_event_info_t *event_info)
{
switch (event)
{
case CY_MQTT_EVENT_TYPE_CONNECTED:
printf("MQTT connected successfully\r\n");
break;
case CY_MQTT_EVENT_TYPE_DISCONNECTED:
printf("MQTT disconnected\r\n");
break;
case CY_MQTT_EVENT_TYPE_PUBLISH_RECEIVE:
printf("MQTT message received\r\n");
break;
case CY_MQTT_EVENT_TYPE_SUBSCRIBE_RESPONSE:
printf("MQTT subscribed successfully\r\n");
break;
case CY_MQTT_EVENT_TYPE_UNSUBSCRIBE_RESPONSE:
printf("MQTT unsubscribed successfully\r\n");
break;
case CY_MQTT_EVENT_TYPE_PUBLISH_RESPONSE:
printf("MQTT published successfully\r\n");
break;
default:
printf("MQTT unknown event\r\n");
break;
}
}
// Define the Bluetooth management callback function
wiced_bt_dev_status_t bluetooth_management_callback(wiced_bt_management_evt_t event, wiced_bt_management_evt_data_t *event_data)
{
switch (event)
{
case BTM_ENABLED_EVT:
printf("Bluetooth enabled\r\n");
wiced_bt_dev_read_local_addr(device_address);
wiced_bt_set_device_name(BLUETOOTH_DEVICE_NAME);
wiced_bt_gatt_register(bluetooth_gatt_callback);
wiced_bt_gatt_db_init(gatt_attribute, sizeof(gatt_attribute));
break;
case BTM_DISABLED_EVT:
printf("Bluetooth disabled\r\n");
break;
case BTM_PAIRING_IO_CAPABILITIES_BLE_REQUEST_EVT:
printf("Bluetooth pairing request\r\n");
event_data->pairing_io_capabilities_ble_request.local_io_cap = BTM_IO_CAPABILITIES_NONE;
event_data->pairing_io_capabilities_ble_request.oob_data = BTM_OOB_NONE;
event_data->pairing_io_capabilities_ble_request.auth_req = BTM_LE_AUTH_REQ_NO_BOND;
event_data->pairing_io_capabilities_ble_request.max_key_size = 0x10;
event_data->pairing_io_capabilities_ble_request.init_keys = 0;
event_data->pairing_io_capabilities_ble_request.resp_keys = 0;
break;
case BTM_PAIRED_DEVICE_LINK_KEYS_UPDATE_EVT:
printf("Bluetooth link keys updated\r\n");
break;
case BTM_PAIRED_DEVICE_LINK_KEYS_REQUEST_EVT:
printf("Bluetooth link keys requested\r\n");
return WICED_BT_ERROR;
case BTM_LOCAL_IDENTITY_KEYS_UPDATE_EVT:
printf("Bluetooth identity keys updated\r\n");
break;
case BTM_LOCAL_IDENTITY_KEYS_REQUEST_EVT:
printf("Bluetooth identity keys requested\r\n");
return WICED_BT_ERROR;
case BTM_BLE_ADVERT_STATE_CHANGED_EVT:
printf("Bluetooth advertising state changed\r\n");
break;
default:
printf("Bluetooth unknown event\r\n");
break;
}
return WICED_BT_SUCCESS;
}
// Define the Bluetooth GATT callback function
wiced_bt_gatt_status_t bluetooth_gatt_callback(wiced_bt_gatt_evt_t event, wiced_bt_gatt_event_data_t *event_data)
{
switch (event)
{
case GATT_CONNECTION_STATUS_EVT:
printf("Bluetooth GATT connection status\r\n");
if (event_data->connection_status.connected)
{
printf("Bluetooth GATT connected\r\n");
}
else
{
printf("Bluetooth GATT disconnected\r\n");
}
break;
case GATT_ATTRIBUTE_REQUEST_EVT:
printf("Bluetooth GATT attribute request\r\n");
if (event_data->attribute_request.request_type == GATTS_REQ_TYPE_READ)
{
printf("Bluetooth GATT read request\r\n");
gatt_status = wiced_bt_gatt_server_send_attribute_value(event_data->attribute_request.conn_id, event_data->attribute_request.data.read_req.handle, 0, sizeof(gatt_value), gatt_value);
}
else if (event_data->attribute_request.request_type == GATTS_REQ_TYPE_WRITE)
{
printf("Bluetooth GATT write request\r\n");
gatt_data = event_data->attribute_request.data.write_req;
gatt_status = wiced_bt_gatt_server_send_write_rsp(event_data->attribute_request.conn_id, gatt_data.handle, gatt_data.is_prep, gatt_data.offset, gatt_data.val_len, gatt_data.p_val);
motor_command = gatt_data.p_val[0];
}
else
{
printf("Bluetooth GATT unknown request\r\n");
gatt_status = WICED_BT_GATT_ERROR;
}
break;
default:
printf("Bluetooth GATT unknown event\r\n");
gatt_status = WICED_BT_GATT_ERROR;
break;
}
return gatt_status;
}
// Define the main function
int main(void)
{
// Initialize the board and the UART
cy_rslt_t result;
result = cybsp_init();
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cy_retarget_io_init(CYBSP_DEBUG_UART_TX, CYBSP_DEBUG_UART_RX, CY_RETARGETIO_BAUDRATE);
CY_ASSERT(result == CY_RSLT_SUCCESS);
// Initialize the Wi-Fi and the MQTT
wifi_config.interface = CY_WCM_INTERFACE_TYPE_STA;
wifi_config.wcm_event_handler = wifi_callback;
result = cy_wcm_init(&wifi_config);
CY_ASSERT(result == CY_RSLT_SUCCESS);
strcpy(connect_param.ap_ssid, WIFI_SSID);
strcpy(connect_param.ap_password, WIFI_PASSWORD);
connect_param.ap_security = WIFI_SECURITY;
result = cy_wcm_connect_ap(&connect_param, &ip_address);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cy_mqtt_init();
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cy_mqtt_create(&mqtt_handle, &mqtt_event, mqtt_callback, NULL);
CY_ASSERT(result == CY_RSLT_SUCCESS);
mqtt_connect_info.client_id = MQTT_CLIENT_ID;
mqtt_connect_info.username = MQTT_USERNAME;
mqtt_connect_info.password = MQTT_PASSWORD;
mqtt_connect_info.keep_alive_sec = 60;
mqtt_connect_info.clean_session = true;
mqtt_connect_info.will_info = NULL;
result = cy_mqtt_connect(mqtt_handle, MQTT_BROKER_ADDRESS, MQTT_BROKER_PORT, &mqtt_connect_info);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cy_mqtt_subscribe(mqtt_handle, MQTT_TOPIC, CY_MQTT_QOS0);
CY_ASSERT(result == CY_RSLT_SUCCESS);
// Initialize the Bluetooth
wiced_bt_stack_init(bluetooth_management_callback, NULL, NULL);
gatt_attribute.handle = 0x0001;
gatt_attribute.uuid.len = LEN_UUID_16;
gatt_attribute.uuid.uu.uuid16 = BLUETOOTH_SERVICE_UUID;
gatt_value.len = sizeof(BLUETOOTH_DEVICE_NAME);
gatt_value.p_val = (uint8_t *)BLUETOOTH_DEVICE_NAME;
// Initialize the I2C and the PWM
i2c_config.is_slave = false;
i2c_config.address = 0;
i2c_config.frequencyhal_hz = 100000;
result = cyhal_i2c_init(&i2c, SENSOR_I2C_SDA, SENSOR_I2C_SCL, NULL);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cyhal_i2c_configure(&i2c, &i2c_config);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cyhal_pwm_init(&pwm, MOTOR_PWM, NULL);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cyhal_pwm_set_duty_cycle(&pwm, MOTOR_DUTY_CYCLE, 1000);
CY_ASSERT(result == CY_RSLT_SUCCESS);
cyhal_pwm_start(&pwm);
// Start the main loop
for (;;)
{
// Read the sensor data from the XMC4200 Platform2Go via I2C
sensor_data[0] = SENSOR_CO2_COMMAND;
result = cyhal_i2c_master_write(&i2c, XMC4200_ADDR, sensor_data, 1, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cyhal_i2c_master_read(&i2c, XMC4200_ADDR, sensor_data, 2, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
co2 = (sensor_data[0] << 8) | sensor_data[1];
sensor_data[0] = SENSOR_PRESSURE_COMMAND;
result = cyhal_i2c_master_write(&i2c, XMC4200_ADDR, sensor_data, 1, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cyhal_i2c_master_read(&i2c, XMC4200_ADDR, sensor_data, 2, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
pressure = (sensor_data[0] << 8) | sensor_data[1];
sensor_data[0] = SENSOR_TEMPERATURE_COMMAND;
result = cyhal_i2c_master_write(&i2c, XMC4200_ADDR, sensor_data, 1, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cyhal_i2c_master_read(&i2c, XMC4200_ADDR, sensor_data, 2, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
temperature = (sensor_data[0] << 8) | sensor_data[1];
sensor_data[0] = SENSOR_SOUND_COMMAND;
result = cyhal_i2c_master_write(&i2c, XMC4200_ADDR, sensor_data, 1, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cyhal_i2c_master_read(&i2c, XMC4200_ADDR, sensor_data, 2, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
sound = (sensor_data[0] << 8) | sensor_data[1];
sensor_data[0] = SENSOR_MAGNETIC_COMMAND;
result = cyhal_i2c_master_write(&i2c, XMC4200_ADDR, sensor_data, 1, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
result = cyhal_i2c_master_read(&i2c, XMC4200_ADDR, sensor_data, 6, 0, true);
CY_ASSERT(result == CY_RSLT_SUCCESS);
magnetic = (sensor_data[0] << 8) | sensor_data[1];
light_x = (sensor_data[2] << 8) | sensor_data[3];
light_y = (sensor_data[4] << 8) | sensor_data[5];
// Read the hall state from the S2GO HALL TLE4964-3M via digital input
hall_state = cyhal_gpio_read(HALL_PIN);
// Print the sensor data to the UART
printf("CO2 level: %d ppm\r\n", co2);
printf("Pressure: %d hPa\r\n", pressure);
printf("Temperature: %d C\r\n", temperature);
printf("Sound level: %d dB\r\n", sound);
printf("Magnetic field: %d mT\r\n", magnetic);
printf("Light intensity: %d %d %d lux\r\n", light_x, light_y, light_z);
printf("Hall state: %d\r\n", hall_state);
// Publish the sensor data to the MQTT broker
mqtt_publish_info.qos = CY_MQTT_QOS0;
mqtt_publish_info.retain = false;
mqtt_publish_info.topic = MQTT_TOPIC;
sprintf(mqtt_publish_info.payload, "%d,%d,%d,%d,%d,%d,%d,%d", co2, pressure, temperature, sound, magnetic, light_x, light_y, light_z);
mqtt_publish_info.payload_len = strlen(mqtt_publish_info.payload);
result = cy_mqtt_publish(mqtt_handle, &mqtt_publish_info);
CY_ASSERT(result == CY_RSLT_SUCCESS);
// Adjust the blinds based on the sensor data and the user preferences
if (motor_command == MOTOR_OPEN_COMMAND) // open the blinds
{
blinds_position = BLINDS_OPEN;
cyhal_pwm_set_duty_cycle(&pwm, MOTOR_DUTY_CYCLE, 1000);
cyhal_gpio_write(BLDC_IN1, 1);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
while (!hall_state)
{
hall_state = cyhal_gpio_read(HALL_PIN);
}
cyhal_pwm_stop(&pwm);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
}
else if (motor_command == MOTOR_CLOSE_COMMAND) // close the blinds
{
blinds_position = BLINDS_CLOSE;
cyhal_pwm_set_duty_cycle(&pwm, MOTOR_DUTY_CYCLE, 1000);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 1);
cyhal_gpio_write(BLDC_IN3, 0);
while (!hall_state)
{
hall_state = cyhal_gpio_read(HALL_PIN);
}
cyhal_pwm_stop(&pwm);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
}
else if (motor_command == MOTOR_ADJUST_COMMAND) // adjust the blinds
{
if (co2 > CO2_THRESHOLD) // too stuffy
{
blinds_position = BLINDS_OPEN;
cyhal_pwm_set_duty_cycle(&pwm, MOTOR_DUTY_CYCLE, 1000);
cyhal_gpio_write(BLDC_IN1, 1);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
while (!hall_state)
{
hall_state = cyhal_gpio_read(HALL_PIN);
}
cyhal_pwm_stop(&pwm);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
}
else if (temperature > TEMPERATURE_THRESHOLD) // too hot
{
blinds_position = BLINDS_CLOSE;
cyhal_pwm_set_duty_cycle(&pwm, MOTOR_DUTY_CYCLE, 1000);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 1);
cyhal_gpio_write(BLDC_IN3, 0);
while (!hall_state)
{
hall_state = cyhal_gpio_read(HALL_PIN);
}
cyhal_pwm_stop(&pwm);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
}
else if (sound > SOUND_THRESHOLD) // too noisy
{
blinds_position = BLINDS_CLOSE;
cyhal_pwm_set_duty_cycle(&pwm, MOTOR_DUTY_CYCLE, 1000);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 1);
cyhal_gpio_write(BLDC_IN3, 0);
while (!hall_state)
{
hall_state = cyhal_gpio_read(HALL_PIN);
}
cyhal_pwm_stop(&pwm);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
}
else if (magnetic > MAGNETIC_THRESHOLD) // too bright
{
blinds_position = BLINDS_CLOSE;
cyhal_pwm_set_duty_cycle(&pwm, MOTOR_DUTY_CYCLE, 1000);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 1);
cyhal_gpio_write(BLDC_IN3, 0);
while (!hall_state)
{
hall_state = cyhal_gpio_read(HALL_PIN);
}
cyhal_pwm_stop(&pwm);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
}
else // optimal conditions
{
blinds_position = BLINDS_OPEN;
cyhal_pwm_set_duty_cycle(&pwm, MOTOR_DUTY_CYCLE, 1000);
cyhal_gpio_write(BLDC_IN1, 1);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
while (!hall_state)
{
hall_state = cyhal_gpio_read(HALL_PIN);
}
cyhal_pwm_stop(&pwm);
cyhal_gpio_write(BLDC_IN1, 0);
cyhal_gpio_write(BLDC_IN2, 0);
cyhal_gpio_write(BLDC_IN3, 0);
}

// Include the libraries for SPI communication
#include <SPI.h>
#include <Wire.h>

// Define the SPI pins for the S2GO MEMSMIC IM69D MEMS Microphone, the S2GO PRESSURE DPS368, and the S2GO 3D TLI493DW2BW-A0
#define MEMSMIC_CS 10
#define PRESSURE_CS 9
#define MAGNETIC_CS 8

// Define the I2C address for the CY8CPROTO-062-4343W board
#define CY8CPROTO_ADDR 0x10

// Define some constants and variables for the sensor data
const int SOUND_SCALE = 256; // The scale factor for converting the sound level to dB
int sound_level = 0; // The current sound level in dB
int pressure = 0; // The current pressure in hPa
int temperature = 0; // The current temperature in C
int magnetic_x = 0; // The current magnetic field in the x-axis in mT
int magnetic_y = 0; // The current magnetic field in the y-axis in mT
int magnetic_z = 0; // The current magnetic field in the z-axis in mT
int light_x = 0; // The current light intensity in the x-axis in lux
int light_y = 0; // The current light intensity in the y-axis in lux
int light_z = 0; // The current light intensity in the z-axis in lux
byte sensor_data[8]; // The buffer for storing the sensor data

void setup() {
  // Initialize the SPI communication
  SPI.begin();
  // Initialize the I2C communication
  Wire.begin();
  // Initialize the digital output
  pinMode(MEMSMIC_CS, OUTPUT);
  pinMode(PRESSURE_CS, OUTPUT);
  pinMode(MAGNETIC_CS, OUTPUT);
  // Set the chip select pins to high
  digitalWrite(MEMSMIC_CS, HIGH);
  digitalWrite(PRESSURE_CS, HIGH);
  digitalWrite(MAGNETIC_CS, HIGH);
}

void loop() {
  // Read the sound level from the S2GO MEMSMIC IM69D MEMS Microphone via SPI
  sound_level = readSoundLevel();
  // Read the pressure and temperature from the S2GO PRESSURE DPS368 via SPI
  pressure = readPressure();
  temperature = readTemperature();
  // Read the magnetic field and light intensity from the S2GO 3D TLI493DW2BW-A0 via SPI
  magnetic_x = readMagneticX();
  magnetic_y = readMagneticY();
  magnetic_z = readMagneticZ();
  light_x = readLightX();
  light_y = readLightY();
  light_z = readLightZ();
  // Send the sensor data to the CY8CPROTO-062-4343W board via I2C
  sensor_data[0] = (sound_level >> 8) & 0xFF;
  sensor_data[1] = sound_level & 0xFF;
  sensor_data[2] = (pressure >> 8) & 0xFF;
  sensor_data[3] = pressure & 0xFF;
  sensor_data[4] = (temperature >> 8) & 0xFF;
  sensor_data[5] = temperature & 0xFF;
  sensor_data[6] = (magnetic_x >> 8) & 0xFF;
  sensor_data[7] = magnetic_x & 0xFF;
  Wire.beginTransmission(CY8CPROTO_ADDR);
  Wire.write(sensor_data, 8);
  Wire.endTransmission();
  sensor_data[0] = (magnetic_y >> 8) & 0xFF;
  sensor_data[1] = magnetic_y & 0xFF;
  sensor_data[2] = (magnetic_z >> 8) & 0xFF;
  sensor_data[3] = magnetic_z & 0xFF;
  sensor_data[4] = (light_x >> 8) & 0xFF;
  sensor_data[5] = light_x & 0xFF;
  sensor_data[6] = (light_y >> 8) & 0xFF;
  sensor_data[7] = light_y & 0xFF;
  Wire.beginTransmission(CY8CPROTO_ADDR);
  Wire.write(sensor_data, 8);
  Wire.endTransmission();
  sensor_data[0] = (light_z >> 8) & 0xFF;
  sensor_data[1] = light_z & 0xFF;
  Wire.beginTransmission(CY8CPROTO_ADDR);
  Wire.write(sensor_data, 2);
  Wire.endTransmission();
  // Wait for 1 second
  delay(1000);
}

// A function to read the sound level from the S2GO MEMSMIC IM69D MEMS Microphone via SPI
int readSoundLevel() {
  // Select the MEMSMIC_CS pin
  digitalWrite(MEMSMIC_CS, LOW);
  // Send a dummy byte to start the SPI communication
  SPI.transfer(0x00);
  // Read the high byte of the sound level
  byte high_byte = SPI.transfer(0x00);
  // Read the low byte of the sound level
  byte low_byte = SPI.transfer(0x00);
  // Deselect the MEMSMIC_CS pin
  digitalWrite(MEMSMIC_CS, HIGH);
  // Combine the high and low bytes to get the 16-bit sound level
  int sound_level = (high_byte << 8) | low_byte;
  // Convert the sound level to dB
  sound_level = sound_level / SOUND_SCALE;
  // Return the sound level
  return sound_level;
}

// A function to read the pressure and temperature from the S2GO PRESSURE DPS368 via SPI
int readPressure() {
  // Select the PRESSURE_CS pin
  digitalWrite(PRESSURE_CS, LOW);
  // Send the command byte to read the pressure
  SPI.transfer(0x00);
  // Read the high byte of the pressure
  byte high_byte = SPI.transfer(0x00);
  // Read the low byte of the pressure
  byte low_byte = SPI.transfer(0x00);
  // Deselect the PRESSURE_CS pin
  digitalWrite(PRESSURE_CS, HIGH);
  // Combine the high and low bytes to get the 16-bit pressure
  int pressure = (high_byte << 8) | low_byte;
  // Return the pressure
  return pressure;
}

int readTemperature() {
  // Select the PRESSURE_CS pin
  digitalWrite(PRESSURE_CS, LOW);
  // Send the command byte to read the temperature
  SPI.transfer(0x01);
  // Read the high byte of the temperature
  byte high_byte = SPI.transfer(0x00);
  // Read the low byte of the temperature
  byte low_byte = SPI.transfer(0x00);
  // Deselect the PRESSURE_CS pin
  digitalWrite(PRESSURE_CS, HIGH);
  // Combine the high and low bytes to get the 16-bit temperature
  int temperature = (high_byte << 8) | low_byte;
  // Return the temperature
  return temperature;
}

// A function to read the magnetic field and light intensity from the S2GO 3D TLI493DW2BW-A0 via SPI
int readMagneticX() {
  // Select the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, LOW);
  // Send the command byte to read the magnetic field in the x-axis
  SPI.transfer(0x00);
  // Read the high byte of the magnetic field in the x-axis
  byte high_byte = SPI.transfer(0x00);
  // Read the low byte of the magnetic field in the x-axis
  byte low_byte = SPI.transfer(0x00);
  // Deselect the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, HIGH);
  // Combine the high and low bytes to get the 16-bit magnetic field in the x-axis
  int magnetic_x = (high_byte << 8) | low_byte;
  // Return the magnetic field in the x-axis
  return magnetic_x;
}

int readMagneticY() {
  // Select the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, LOW);
  // Send the command byte to read the magnetic field in the y-axis
  SPI.transfer(0x01);
  // Read the high byte of the magnetic field in the y-axis
  byte high_byte = SPI.transfer(0x00);
  // Read the low byte of the magnetic field in the y-axis
  byte low_byte = SPI.transfer(0x00);
  // Deselect the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, HIGH);
  // Combine the high and low bytes to get the 16-bit magnetic field in the y-axis
  int magnetic_y = (high_byte << 8) | low_byte;
  // Return the magnetic field in the y-axis
  return magnetic_y;
}

int readMagneticZ() {
  // Select the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, LOW);
  // Send the command byte to read the magnetic field in the z-axis
  SPI.transfer(0x02);
  // Read the high byte of the magnetic field in the z-axis
  byte high_byte = SPI.transfer(0x00);
  // Read the low byte of the magnetic
field in the z-axis
  byte low_byte = SPI.transfer(0x00);
  // Deselect the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, HIGH);
  // Combine the high and low bytes to get the 16-bit magnetic field in the z-axis
  int magnetic_z = (high_byte << 8) | low_byte;
  // Return the magnetic field in the z-axis
  return magnetic_z;
}

int readLightX() {
  // Select the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, LOW);
  // Send the command byte to read the light intensity in the x-axis
  SPI.transfer(0x03);
  // Read the high byte of the light intensity in the x-axis
  byte high_byte = SPI.transfer(0x00);
  // Read the low byte of the light intensity in the x-axis
  byte low_byte = SPI.transfer(0x00);
  // Deselect the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, HIGH);
  // Combine the high and low bytes to get the 16-bit light intensity in the x-axis
  int light_x = (high_byte << 8) | low_byte;
  // Return the light intensity in the x-axis
  return light_x;
}

int readLightY() {
  // Select the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, LOW);
  // Send the command byte to read the light intensity in the y-axis
  SPI.transfer(0x04);
  // Read the high byte of the light intensity in the y-axis
  byte high_byte = SPI.transfer(0x00);
  // Read the low byte of the light intensity in the y-axis
  byte low_byte = SPI.transfer(0x00);
  // Deselect the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, HIGH);
  // Combine the high and low bytes to get the 16-bit light intensity in the y-axis
  int light_y = (high_byte << 8) | low_byte;
  // Return the light intensity in the y-axis
  return light_y;
}

int readLightZ() {
  // Select the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, LOW);
  // Send the command byte to read the light intensity in the z-axis
  SPI.transfer(0x05);
  // Read the high byte of the light intensity in the z-axis
  byte high_byte = SPI.transfer(0x00);
  // Read the low byte of the light intensity in the z-axis
  byte low_byte = SPI.transfer(0x00);
  // Deselect the MAGNETIC_CS pin
  digitalWrite(MAGNETIC_CS, HIGH);
  // Combine the high and low bytes to get the 16-bit light intensity in the z-axis
  int light_z = (high_byte << 8) | low_byte;
  // Return the light intensity in the z-axis
  return light_z;
}

// Define the UART pins
#define UART_TX P0_5
#define UART_RX P0_4

// Define the UART baud rate
#define UART_BAUD 9600

// Define the CO2 sensor parameters
#define CO2_START_BYTE 0xFF
#define CO2_SENSOR_ID 0x01
#define CO2_END_BYTE 0xFE

// Declare the CO2 sensor variables
uint8_t co2_data[8];
uint16_t co2;
uint8_t checksum;

void setup() {
  // Initialize the UART communication
  Serial.begin(UART_BAUD);
}

void loop() {
  // Read the CO2 level from the sensor via UART
  if (Serial.available() > 0)
  {
    // Read the first byte of the data
    co2_data[0] = Serial.read();
    // Check if the first byte is the start byte
    if (co2_data[0] == CO2_START_BYTE)
    {
      // Read the second byte of the data
      co2_data[1] = Serial.read();
      // Check if the second byte is the sensor ID
      if (co2_data[1] == CO2_SENSOR_ID)
      {
        // Read the third byte of the data
        co2_data[2] = Serial.read();
        // Read the fourth byte of the data
        co2_data[3] = Serial.read();
        // Read the fifth byte of the data
        co2_data[4] = Serial.read();
        // Read the sixth byte of the data
        co2_data[5] = Serial.read();
        // Read the seventh byte of the data
        co2_data[6] = Serial.read();
        // Read the eighth byte of the data
        co2_data[7] = Serial.read();
        // Check if the eighth byte is the end byte
        if (co2_data[7] == CO2_END_BYTE)
        {
          // Calculate the checksum of the data
          checksum = (co2_data[1] + co2_data[2] + co2_data[3] + co2_data[4] + co2_data[5] + co2_data[6]) % 256;
          // Check if the checksum matches the fifth byte
          if (checksum == co2_data[4])
          {
            // Combine the third and fourth bytes to get the 16-bit CO2 level
            co2 = (co2_data[2] << 8) | co2_data[3];
          }
        }
      }
    }
  }
  // Send the CO2 level to the CY8CPROTO-062-4343W board via UART
  Serial.write(CO2_START_BYTE);
  Serial.write(CO2_SENSOR_ID);
  Serial.write((co2 >> 8) & 0xFF);
  Serial.write(co2 & 0xFF);
  Serial.write(checksum);
  Serial.write(0x00);
  Serial.write(0x00);
  Serial.write(CO2_END_BYTE);
  // Wait for 1 second
  delay(1000);
}

// Include the library for I2C communication
#include <Wire.h>

// Define the I2C address for the CY8CPROTO-062-4343W board
#define CY8CPROTO_ADDR 0x10

// Define the digital pins for the BLDC Shield IFX007T
#define BLDC_IN1 3
#define BLDC_IN2 5
#define BLDC_IN3 6

// Define the motor commands
#define MOTOR_OPEN_COMMAND 0x01
#define MOTOR_CLOSE_COMMAND 0x02
#define MOTOR_ADJUST_COMMAND 0x03

// Define the motor parameters
#define MOTOR_DUTY_CYCLE 50 // %
#define MOTOR_DELAY 1000 // ms
#define MOTOR_STEP 10 // degrees

// Declare the motor variable
uint8_t motor_command;

void setup() {
  // Initialize the I2C communication
  Wire.begin();
  // Initialize the digital output
  pinMode(BLDC_IN1, OUTPUT);
  pinMode(BLDC_IN2, OUTPUT);
  pinMode(BLDC_IN3, OUTPUT);
}

void loop() {
  // Receive the motor command from the CY8CPROTO-062-4343W board via I2C
  Wire.requestFrom(CY8CPROTO_ADDR, 1);
  if (Wire.available())
  {
    motor_command = Wire.read();
  }
  // Control the motorized blinds via the BLDC Shield IFX007T
  if (motor_command == MOTOR_OPEN_COMMAND) // open the blinds
  {
    analogWrite(BLDC_IN1, MOTOR_DUTY_CYCLE);
    analogWrite(BLDC_IN2, 0);
    analogWrite(BLDC_IN3, 0);
    delay(MOTOR_DELAY);
    analogWrite(BLDC_IN1, 0);
    analogWrite(BLDC_IN2, 0);
    analogWrite(BLDC_IN3, 0);
  }
  else if (motor_command == MOTOR_CLOSE_COMMAND) // close the blinds
  {
    analogWrite(BLDC_IN1, 0);
    analogWrite(BLDC_IN2, MOTOR_DUTY_CYCLE);
    analogWrite(BLDC_IN3, 0);
    delay(MOTOR_DELAY);
    analogWrite(BLDC_IN1, 0);
    analogWrite(BLDC_IN2, 0);
    analogWrite(BLDC_IN3, 0);
  }
  else if (motor_command == MOTOR_ADJUST_COMMAND) // adjust the blinds
  {
    analogWrite(BLDC_IN1, 0);
    analogWrite(BLDC_IN2, 0);
    analogWrite(BLDC_IN3, MOTOR_DUTY_CYCLE);
    delay(MOTOR_STEP);
    analogWrite(BLDC_IN1, 0);
    analogWrite(BLDC_IN2, 0);
    analogWrite(BLDC_IN3, 0);
  }
}

Credits

Amaljith Cf

12 projects • 29 followers

Technology enthusiast

Smart Motorized Window Blinds with Environmental Control

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Code

comms_CY8CPROTO-062-4343W.ino

xmc4200.ino

pasco2.ino

xmc1300.ino

Credits

Amaljith Cf

Comments

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Smart Motorized Window Blinds with Environmental Control

Smart Motorized Window Blinds with Environmental Control

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Code

comms_CY8CPROTO-062-4343W.ino

xmc4200.ino

pasco2.ino

xmc1300.ino

Credits

Amaljith Cf

Comments

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