Device-to-device commun using Grove Beginner Kit for Arduino

Earlier, I enjoyed the basic operation of the Grove Beginner Kit for Arduino.

https://www.hackster.io/H0meMadeGarbage/grove-beginner-kit-for-arduino-75e7be

I enjoyed device-to-device communication using Grove Beginner Kit for Arduino.

Seeeduino Lotus

Grove Beginner Kit for Arduino includes a Seeeduino Lotus as a controller.

I referred to the following for how to set the bar for Arduino IDE.https://wiki.seeedstudio.com/Seeed_Arduino_Boards/

Device-to-device communication

• Ring the buzzer with the button.
• Detect the sound with a microphone. Then, illuminate the LED
• The lighting is detected by the optical sensor. Then, characters appear on the display.

Arduino IDE Code

#include <U8g2lib.h>

#ifdef U8X8_HAVE_HW_I2C
#include <Wire.h>
#endif

const int buttonPin = 6;
const int buzzer = 5;
const int mic = A2;
const int LED = 4;
const int Light = A6;
int state = 0;

U8G2_SSD1306_128X64_NONAME_F_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE);    //Low spped I2C

void setup() {
  pinMode(buttonPin, INPUT);
  pinMode(LED, OUTPUT);
  Serial.begin(115200);

  digitalWrite(LED, LOW);

  u8g2.begin();
  u8g2.setFont(u8g2_font_logisoso54_tf);   // choose a suitable font
  u8g2.clearBuffer();
}

void loop() {
  //button-buzzer
  if(digitalRead(buttonPin)){
    tone(buzzer, 262, 1000);
  }

  //mic-LED
  if(analogRead(mic) > 500){
    digitalWrite(LED, HIGH);
  }else{
    digitalWrite(LED, LOW);
  }

  Serial.println(analogRead(Light));
  
  //Light-Display
  if(analogRead(Light) > 500 && state == 0){
    u8g2.drawStr(30,60,"ON");    // write something to the internal memory
    u8g2.sendBuffer();
    state = 1;
    delay(1000); 
  }else if(analogRead(Light) < 400 && state == 1){
    u8g2.clearBuffer();
    u8g2.sendBuffer(); 
    state = 0;
  }
}

Refer to the following for how to use the OLED display module.https://wiki.seeedstudio.com/Grove-OLED-Display-0.96-SSD1315/

The library for the display used:https://github.com/olikraus/u8g2