Arduino based Temperature Sensor

Hardware Requirments

1. Arduino uno/Nano

2. oled display SSD1306 - 7 pin

3. MLX90614 Temperature Sensor

Knowledge Requirements

1. Arduino IDE programming

2. Basic Soldering

Step 1: Connect circuit as per diagram shown in above

Step 2: Copy paste Arduino code on IDE and upload to Arduino. Before that add sparkfun mlx90614 and adafruit oledssd1306 or for some .... made oled display use u8g2 library.

#include <Wire.h>

#include <SparkFunMLX90614.h>

#include <U8x8lib.h>

#include <SPI.h>

#ifdef U8X8_HAVE_HW_SPI

#include <SPI.h>

#endif

IRTherm therm;

U8X8_SSD1306_128X64_NONAME_4W_SW_SPI u8x8(/* clock=*/ 13, /* data=*/ 11, /* cs=*/ 8, /* dc=*/ 9, /* reset=*/ 10);

void setup()

{

Serial.begin(9600);

therm.begin();

therm.setUnit(TEMP_C);

u8x8.begin();

u8x8.setFont(u8x8_font_px437wyse700a_2x2_r);

u8x8.drawString(0, 0, " BODY ");

u8x8.setFont(u8x8_font_px437wyse700b_2x2_r);

u8x8.drawString(0, 2, " TEMP ");

u8x8.setFont(u8x8_font_px437wyse700a_2x2_r);

u8x8.drawString(0, 4, " READER ");

u8x8.refreshDisplay(); // only required for SSD1606/7

delay(2000);

}

void loop()

{

String temperature;

char runner;

if (therm.read()) // On success, read() will return 1, on fail 0.

{

temperature = String(therm.object(), 2);

u8x8.print("Object: ");

u8x8.print(temperature); Serial.println("C");

//display.clearDisplay();

u8x8.refreshDisplay();

runner++;

delay(5);

}

if (therm.object()>=100)

u8x8.setFont(u8x8_font_px437wyse700b_2x2_r);

u8x8.setCursor(0,2);

//u8x8.println(temparature);

u8x8.setFont(u8x8_font_px437wyse700b_2x2_r);

u8x8.setCursor(0,4);

u8x8.println("deg C");

u8x8.refreshDisplay();

if (runner>20)

runner=0;

}