Ks0276 keyestudio MLX90614 Non-contact Infrared Temperature Sensor

keyestudio MLX90614 Non-contact Infrared Temperature Sensor

Introduction

Keyestudio MLX90614 non-contact infrared temperature sensor is mainly composed of sensor MLX90614.
MLX90614 is an infrared non-contact thermometer, and the TO-39 package integrates infrared induction thermoelectric pile detector chip (MLX81101) and signal processing dedicated integrated chip MLX90302.
Due to the integration of low noise amplifier, 17-bit analog digital converter and DSP processing unit, the sensor achieves high precision and high resolution measurement.

Specification

Working voltage：3.3-5V
Communication way：IIC communication
Working temperature range：from -40 to +125℃
Measurement accuracy：±0.5℃（0 to 50℃）

Connection Diagram

Sample Code

/*************************************************** 
  This is a library example for the MLX90614 Temp Sensor
  Designed specifically to work with the MLX90614 sensors in the Keyestudio shop

  These sensors use I2C to communicate, 2 pins are required to 
 ****************************************************/

<pre>
#include <Wire.h>
#include <Adafruit_MLX90614.h>

Adafruit_MLX90614 mlx = Adafruit_MLX90614();

void setup() {
  Serial.begin(9600);

  Serial.println("Adafruit MLX90614 test");  

  mlx.begin();  
}

void loop() {
  Serial.print("Ambient = "); Serial.print(mlx.readAmbientTempC()); 
  Serial.print("*C\tObject = "); Serial.print(mlx.readObjectTempC()); Serial.println("*C");
  Serial.print("Ambient = "); Serial.print(mlx.readAmbientTempF()); 
  Serial.print("*F\tObject = "); Serial.print(mlx.readObjectTempF()); Serial.println("*F");

  Serial.println();
  delay(500);
}

Test Reult

Done as the above wiring, program the code, and then open the serial port monitor, the current temperature is shown in figure 1; if a heat source closes to the sensor, it can detect the temperature changes as shown in figure 2.

Figure 1: