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MLX90614 infrared thermometer~

This feature is not included in precompiled binaries

When compiling your build add the following to user_config_override.h: 

#ifndef USE_MLX90614
#define USE_MLX90614            // [I2cDriver32] Enable MLX90614 ir temp sensor (I2C address 0x5a) (+0.6k code)
#endif

The MLX90614 is an infrared thermometer for non-contact temperature measurements.

Configuration~

Wiring~

MLX90614 ESP
GND GND
VCC 3.3V
SDA GPIOx
SCL GPIOy

Tasmota Settings~

In the Configuration -> Configure Module page assign:

  1. GPIOx to I2C SDA
  2. GPIOy to I2C SCL

After a reboot the driver will detect MLX90614 automatically and display Temperature measurements.

MLX90614 WebUi Display

Sensor sends a tele/%topic%/SENSOR JSON response:

tele/tasmota/SENSOR = {"Time":"2019-11-11T00:03:30","MLX90614":{"OBJTMP":23.8,"AMBTMP":22.7}}

Breakout Boards~

MLX90615~

This driver will also work with MLX90615 sensor with some code alterations.

Change lines 26-30 

#define I2_ADR_IRT      0x5b

#define MLX90614_RAWIR1 0x05
#define MLX90614_TA     0x26
#define MLX90614_TOBJ1  0x27