{"NAME":"ME81H Thermostat_C3","GPIO":[0,0,0,576,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2304,2272],"FLAG":0,"BASE":1}

{"NAME":"ME81H Thermostat_8266","GPIO":[1,1,1,1,1,1,0,0,1,1,1,1,1,0],"FLAG":0,"BASE":54}

This device uses WBR3 module which needs to be replaced with ESP8685-WROOM-01, ESP-12, ESP-C3-12F, ESP-12H, ESPC2-12 or ESP8684-WROOM-01C. Read more about module replacement in a detailed guide.

PCB ME81H-WIFIMBXIN–B-V1.4

Pins for ESP32-C3-12F

• GPIO03: LedLink_i
• GPIO20: Tuya Rx
• GPIO21: Tuya Tx
• GPIO08 - connected to GND through R50
• GPIO09 - connected to TyuaMCU through R49 !!! Desolder R49 and R50 or isolate IO08 and IO09 ESP pins otherwise ESP32-C3 will not boot !!! Information about ESP32-C3 strapping pins (boot mode selection)

Known dpIds

dpId	Function	Data-type	Remarks
1	device power	boolean	fnId 11 - Relay1
2	operation mode	enum	fnId 62 : 0 - scheduled; 1 - manual
16	target temp	integer	fnId 72 - Temperature Sensor Set
24	current temp	integer	fnId 71 - Temperature Sensor (report)
27	temp calibration	integer	fnId ??? negative numbers
40	buttons lock	boolean	fnId 12 : 0 - unlocked; 1 - locked
43	sens source	enum	fnId 61 : 0 - internal; 1 - external; 2-both

To configure dpIds and enumeration lists above:

backlog tuyamcu 11,1; tuyamcu 12,40; tuyamcu 61,43; tuyamcu 62,2; tuyamcu 71,24; tuyamcu 72,16; TuyaEnumList 1,2; TyuaEnumList 2,1

To switch degrees units between Celsius and Farenheit use SetOption8: 0 (default) for Celsius Sensors section TyuaMCU

Command examples

• Tuyasend 1,0 - switch device OFF or power1 0 if fnId was mapped with tyuamcu
• Tuyasend 1,1 - switch device ON or power1 1 if fnId was mapped with tyuamcu
• Tuyasend2 16,22 – set target temperature to 22°C
• TuyaEnum1 1 - set external sensor as the temperature data source
• TuyaEnum2 1 - set manual operation mode