Minco Heat MK80W

Minco Heat MK80W (Platform ME80)

The Minco Heat MK80W is a Tuya MCU-based touchscreen thermostat used for floor heating and boilers. It communicates with the Wi-Fi/ESP module via a hardware UART interface at 9600 baud.

Hardware Modifications (Hardware Modding)

To flash this thermostat with ESPHome, the stock Tuya Wi-Fi module (such as the WBR3) must be desoldered and replaced with a custom ESP32-S3 board (or equivalent).

Critical Wiring Note: One of the signal traces controlling the network status icon (Wi-Fi leaf/symbol) on the front LCD panel must be hardware-soldered directly to the pad that originally mapped to pin A_2 on the stock Tuya WBR3 module. In this ESPHome configuration, this pin is mapped to GPIO7. The control logic is inverted: pulling the pin LOW (0V) keeps the icon solidly lit, while pulling it HIGH turns it off.

Data Points (DPID) Mapping

DPID	Type	Description
1	Boolean	Main Power Switch (ON / OFF)
2	Enum	Operation Mode: 0 - Auto (Schedule), 1 - Manual, 2 - ECO
16	Integer	Target Temperature (e.g., 220 = 22.0°C)
19	Integer	Maximum Temperature Limit (e.g., 330 = 33.0°C)
26	Integer	Minimum Temperature Limit (e.g., 180 = 18.0°C)
27	Integer	Temperature Calibration Offset (Signed 32-bit, base offset = 4)
36	Enum	Relay Heating Status: 0 - Idle, 1 - Heating (Automatic)
40	Boolean	Child Lock (Disables physical wall buttons)
43	Enum	Active Sensor Source: 0 - Internal Air, 1 - External Floor, 2 - Dual Combined
52	Enum	Screen Backlight Mode: 0 - Turn Off after 15s, 1 - Dim after 15s
101	Integer	Current Room Temperature (e.g., 255 = 25.5°C)
103	Boolean	Anti-Frost Protection Mode (Active when the screen is powered OFF)
106	Integer	Temperature Hysteresis deadband (e.g., 5 = 0.5°C)
108	Raw Bytes	Weekly programmable schedule matrix

Configuration

Below is the verified standalone configuration split into hardware components and advanced helper entities.

https://github.com/esphome/devices.esphome.io/blob/main/src/docs/devices/Minco-Heat-MK80W/config.yaml

# Hardware configuration for Minco Heat MK80W
packages:
  base: !include base.yaml

uart:
  id: tuya_uart
  tx_pin: GPIO1
  rx_pin: GPIO2
  baud_rate: 9600
  rx_buffer_size: 1024

time:
  - platform: sntp
    id: ntp_time
    timezone: "Europe/Minsk"

tuya:
  id: tuya_bus
  uart_id: tuya_uart
  time_id: ntp_time

switch:
  - platform: gpio
    pin: GPIO7
    id: thermo_status_pin
    restore_mode: ALWAYS_OFF

  - platform: tuya
    name: "Thermostat Child Lock"
    switch_datapoint: 40

  - platform: tuya
    name: "Thermostat Anti-Frost Mode"
    switch_datapoint: 103

interval:
  - interval: 250ms
    then:
      - lambda: |-
          if (!id(ntp_time).now().is_valid()) {
            if (id(thermo_status_pin).state) {
              id(thermo_status_pin).turn_off();
            } else {
              id(thermo_status_pin).turn_on();
            }
          }

  - interval: 5s
    then:
      - lambda: |-
          auto *uart_bus = id(tuya_uart);
          uint8_t query_packet[] = {
            0x55, 0xAA, 0x00, 0x08, 0x00, 0x00, 0x07
          };
          uart_bus->write_array(query_packet, sizeof(query_packet));

          if (id(ntp_time).now().is_valid()) {
            id(thermo_status_pin).turn_off();
            uint8_t wifi_packet[] = {
              0x55, 0xAA, 0x00, 0x03, 0x00, 0x01, 0x04, 0x08
            };
            uart_bus->write_array(wifi_packet, sizeof(wifi_packet));
          }

climate:
  - platform: tuya
    id: thermostat_climate
    name: "Thermostat"
    switch_datapoint: 1
    target_temperature_datapoint: 16
    current_temperature_datapoint: 101
    temperature_multiplier: 0.1

select:
  - platform: tuya
    name: "Thermostat Backlight Mode"
    enum_datapoint: 52
    options:
      0: "Turn Off after 15s"
      1: "Dim after 15s"

  - platform: tuya
    name: "Thermostat Sensor Source"
    enum_datapoint: 43
    options:
      0: "Internal Air Sensor (IN)"
      1: "External Floor Sensor (OUT)"
      2: "Dual Combined Sensor (ALL)"