Add support for MLX90614 non-contact infrared thermometer

arendst / Tasmota

Alternative firmware for ESP8266 and ESP32 based devices with easy configuration using webUI, OTA updates, automation using timers or rules, expandability and entirely local control over MQTT, HTTP, Serial or KNX. Full documentation at

https://tasmota.github.io/docs

GNU General Public License v3.0

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Add support for MLX90614 non-contact infrared thermometer #5108

Closed inforsgit closed 5 years ago

inforsgit commented 5 years ago

I've looked through the documentation and searched around but there don't seem to be any references to potential support for the MLX90614 non-contact infrared thermometer in Tasmota. It would be very useful to have this included so it could be hooked up to modules running Tasmota.

The device is a non-contact infrared thermometer (https://www.melexis.com/en/product/MLX90614/Digital-Plug-Play-Infrared-Thermometer-TO-Can) that connects via I2C using address 0x5a and gives two values - the ambient temperature and the temperature derived from the non-contact IR sensor which can be used to measure the temperature of a remote object.

SparkFun have an example page for hooking up (and code) for the device here: https://learn.sparkfun.com/tutorials/mlx90614-ir-thermometer-hookup-guide and it is already integrated into ESPEasy.

mike2nl commented 5 years ago

@inforsgit then you got the first issue. The addess 0x5a is already used by the CCS811 sensor and the MLX90614 has only that one address. The CCS811 has two possible addresses but there is only one used in the current driver. So lots of work with sensor is going on. That must be done first.

On the other site i have that sensor already now for 2 month but no time to add the code to tasmota:

https://nl.aliexpress.com/item/CJMCU-MLX90614ESF-DCI-Infrarood-Temperatuur-Sensor-IIC-Communicatie-Module-MLX90614-Hoek-Precisie-IR-Meting/32846740665.html?spm=a2g0s.9042311.0.0.6ce34c4d7lgFZl

gemu2015 commented 5 years ago

@mike2nl i have a preliminary support for MLX90615. it has the address 0x5b and is very similar to MLX90614. its on my fork. you may give it a try.

mike2nl commented 5 years ago

@gemu2015 thanks for the info, super. Will look at it, possible change some little things and it will work.

sapkra commented 5 years ago

@mike2nl Any news? Is it working for you?

ascillato2 commented 5 years ago

Closing this issue as a Pull request has been submitted for this by @gemu2015

Thanks everyone for working on this. :+1: