inaccuracy of mlx90614 temperature sensor

sandeep's picture


Joined: Apr 11, 2020

Replies: 0
inaccuracy of mlx90614 temperature sensor
April 11, 2020 - 2:54pm

For designing an IR thermometer, we used MLX90614 temperature sensor with LCD screen with Arduino Nano. it is not consistent. the temperature of the object is changing with change in ambient temperature. kindly advise


Aswinth Raj's picture


Joined: Aug 16, 2016

Replies: 956
MLX90614 is factory calibrated
April 12, 2020 - 10:48am

Since the MLX90614 is factory calibrated you should not face this problem. Try using a different sensor. How much variation are you getting it is less than 0.5*C then there is nothing much we can do to correct it. 


Muhammad Umar's picture


Joined: Apr 09, 2020

Replies: 55
Melexsis MLX90614 IR temperature Sensor Calibration
April 23, 2020 - 2:22pm

Using Melexis IR temperature sensors with arduino, especially with arduino UNO and arduino nano, there are some limitations and as well as it takes time to calibrate the sensor with our main controller. Once the calibration done, you can check the object's temperature. I've similar issue in my hobby project, for that I contacted with SSLA technical support team and got my issue resolved.