MLX90614_SMBusWrite Not working

[pollockDeVis]

MLX90614_SMBusWrite() is not working. I tried to change the emissivity using this function but it doesn't change the emissivity.
Also in the MLX90614_SetEmissivity(uint8_t slaveAddr, float value) function, may I know why you included these functions? What purpose do they serve?

error = MLX90614_SMBusRead(slaveAddr, 0x2F, &data);
error = MLX90614_SendCommand(slaveAddr, 0x60);
error = MLX90614_SMBusWrite(slaveAddr, 0x2F, 0x0000);
error = MLX90614_SMBusWrite(slaveAddr, 0x2F, data);
error = MLX90614_SendCommand(slaveAddr, 0x61);

[dane-allison]

I also have the same issue. Unable to set the emissivity.

[JustinAdmin]

I also have the same problem and the manufacture doesn't support the IDF but does support Arduino ESP32 here

Its document here
https://www.melexis.com/en/documents/documentation/application-notes/application-note-mlx90614-changing-emissivity-setting

Step	Command
Read the current value of emissivity	MLX90614_SMBusRead(slaveAddr, 0x2F, &data);
Unlock the EEPROM to be able to write a new E values	MLX90614_SendCommand(slaveAddr, 0x60);
Clear the EEPROM with all zeros	MLX90614_SMBusWrite(slaveAddr, 0x2F, 0x0000);
Write new value to EEPROM for Emissivity	MLX90614_SMBusWrite(slaveAddr, 0x2F, data);
Lock EEPROM to save new E value	MLX90614_SendCommand(slaveAddr, 0x61);

[JustinAdmin]

@mistak1992

I rewrote the driver with the help of someone from Melexis and upload the PR's #2 and #3