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DKARDU
Published © CC0

How to Make a Non-Touch Doorbell, Body Temperature Detection

How to Make a Non-Touch Doorbell, Body Temperature Detection, GY-906, 433MHz using Arduino

AdvancedFull instructions provided2 hours6,864

Things used in this project

Hardware components

Arduino Nano R3
Arduino Nano R3
×1
GY-906-BCC IR Infrared Thermometry Module
×1
433 MHz RF receiver and transmitter Module
×1
Two 220Ω
×1
RGB LED
×1
Buzzer
×1
Jumper wires
×1
Breadboard
×1

Story

Read more

Schematics

circuit_diagram_E4sbQoG5gu.jpg

Code

transmit.ino

Arduino
#include "U8glib.h"
U8GLIB_SSD1306_128X64 u8g(U8G_I2C_OPT_NONE);
#include <RH_ASK.h>
#include <SPI.h>
#include <Adafruit_MLX90614.h>
#define trig_Pin  2
#define echo_Pin  4  
long duration, cm;
RH_ASK driver;
Adafruit_MLX90614 mlx = Adafruit_MLX90614();
void setup()
{
    //pinMode(buttonPin, INPUT);
    pinMode(trig_Pin, OUTPUT);
    pinMode(echo_Pin, INPUT);
    
    Serial.begin(9600);   
    if (!driver.init())
         Serial.println("init failed"); 
}

void loop()
{
    int temp_obj = mlx.readObjectTempC();
    Serial.println("Temp:");
    Serial.print(temp_obj);
    Serial.print("\n"); 
    digitalWrite(trig_Pin, LOW);  
    delayMicroseconds(2);
    digitalWrite(trig_Pin, HIGH);  
    delayMicroseconds(10);
    digitalWrite(trig_Pin, LOW);
    duration = pulseIn(echo_Pin, HIGH);
    cm = duration*0.034/2; 
    Serial.println("distance:");
    Serial.println(cm);
   u8g.firstPage();
  do
  {
    u8g.setFont(u8g_font_9x18);
    u8g.setPrintPos(1,20);
    u8g.print("Distance:");
    u8g.print(cm);
    u8g.print("cm");
    u8g.setPrintPos(1,50);
    u8g.print("Temp:");
    u8g.print(temp_obj);
    u8g.print("*C");
  }while(u8g.nextPage()); 
    
    if (cm<10) {
      if(temp_obj >  31 && temp_obj < 37)
      {
      Serial.println("send"); 
      const char *msg = "toggle_buz";
      driver.send((uint8_t *)msg, strlen(msg));
      driver.waitPacketSent();
      delay(2000);
      }
    }
    
    if(cm>9){
      Serial.println("no"); 
      const char *msg = "toggle_no";
      driver.send((uint8_t *)msg, strlen(msg));
      driver.waitPacketSent();
    }
     if(temp_obj <= 31 || temp_obj > 38)
      {
      Serial.println("no"); 
      const char *msg = "toggle_no";
      driver.send((uint8_t *)msg, strlen(msg));
      driver.waitPacketSent();
      }
}

receive.ino

Arduino
#include <RH_ASK.h>
#include <SPI.h>

RH_ASK driver;
const int buzzer =  10;     
void setup()
{
    pinMode(buzzer, OUTPUT);
    Serial.begin(9600); // Debugging only
    if (!driver.init())
         Serial.println("init failed");
}

void loop()
{
    uint8_t buf[10];
    uint8_t buflen = sizeof(buf);
    if (driver.recv(buf, &buflen)) 
    {
      int i;
      String cleanInput = String((char*)buf).substring(0,10);
      String cleanInput2 = String((char*)buf).substring(0,9);
      if(cleanInput == "toggle_buz"){
        
          digitalWrite(buzzer, HIGH);
          
          }
      
       if(cleanInput2 == "toggle_no"){
       
          digitalWrite(buzzer, LOW); 
        
          }
      }
              
}

Credits

DKARDU
22 projects • 44 followers
Arduino
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Related channels and tags
  • Arduino
  • Home Automation
  • Home Automation