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Deta Grid Connect Smart Fan Speed Controller with Touch Light Switch
Deta Grid Connect Smart Fan Speed Controller with Touch Light Switch
Device Type: switchElectrical Standard: auBoard: bk72xx
General Information
Deta 6914HA is a smart fan controller with light switch sold in Australia and New Zealand.
Series 1
Original version uses ESP8266 controller.
Series 2
Newer revision uses BK7231T controller on the Tuya WB3S module.
Series 3
revision uses BK7231N controller on the Tuya CB3S module
GPIO Pinout
ESP8266 Version
| GPIO # | Component |
|---|---|
| GPIO00 | Button2 |
| GPIO01 | None |
| GPIO02 | None |
| GPIO03 | LedLink |
| GPIO04 | Relay3 |
| GPIO05 | Button3 |
| GPIO09 | None |
| GPIO10 | None |
| GPIO12 | None |
| GPIO13 | Relay2 |
| GPIO14 | Relay1 |
| GPIO15 | Relay4 |
| GPIO16 | Button1 |
| FLAG | None |
BK72xx Version
| Pin # | Component |
|---|---|
| P14 | Button1 |
| P1 | Button2 |
| P8 | Button3 |
| P10 | Led |
| P26 | Light Relay |
| P6 | Fan Relay 1 |
| P7 | Fan Relay 2 |
| P9 | Fan Relay 3 |
BK7231N Version
| Pin # | Component |
|---|---|
| P14 | Button1 |
| P20 | Button2 |
| P7 | Button3 |
| P10 | Led |
| P26 | Light Relay |
| P6 | Fan Relay 1 |
| P8 | Fan Relay 2 |
| P9 | Fan Relay 3 |
Getting it up and running
Series 1 - Tuya Convert
These switches are Tuya devices, so if you don't want to open them up to flash directly, you can attempt to use tuya-convert to initially get ESPHome onto them however recently purchased devices are no longer Tuya-Convert compatible. There's useful guide to disassemble and serial flash similar switches here. After that, you can use ESPHome's OTA functionality to make any further changes.
- Put the switch into "smartconfig" / "autoconfig" / pairing mode by holding any button for about 5 seconds.
- The status LED (to the side of the button(s)) blinks rapidly to confirm that it has entered pairing mode.
Series 2 - Cloudcutter
Cloudcutter is a tool designed to simplify the flashing process. Follow the official guide for instructions.
Manual Flashing
If you prefer to flash manually, you'll need a USB to serial adapter. Follow the disassembly steps below:
- Remove the front plastic face.
- Unscrew the exposed screws.
- Remove the clear panel and the small PCB underneath.
Configuration Examples
Series 1 (ESP8266)
substitutions: device_name: deta_fan_controller friendly_name: "Deta Smart Fan Speed Controller"
##########################
esphome: name: ${device_name}
esp8266: board: esp01_1m restore_from_flash: true
wifi: ssid: !secret wifi_ssid password: !secret wifi_password ap:
captive_portal:
sensor: - platform: wifi_signal name: ${friendly_name} Wifi Signal Strength update_interval: 60s - platform: uptime name: ${friendly_name} Uptime
text_sensor: - platform: wifi_info ip_address: name: ${friendly_name} IP ssid: name: ${friendly_name} SSID bssid: name: ${friendly_name} BSSID mac_address: name: ${friendly_name} Mac
logger:
api:
ota:
web_server: port: 80
light: - platform: binary output: relay_light id: light1 name: ${friendly_name} Light
status_led: pin: number: GPIO3 inverted: True
output: - platform: gpio id: relay_light pin: GPIO14 - platform: template id: fan_speed type: float write_action: - then: - if: condition: lambda: return ((state > 0) && (state < .4)); then: - switch.turn_on: relay_fan_1 - delay: 20ms - switch.turn_off: relay_fan_2 - delay: 20ms - switch.turn_off: relay_fan_3 - if: condition: lambda: return ((state > .4) && (state < .7)); then: - switch.turn_on: relay_fan_1 - delay: 20ms - switch.turn_off: relay_fan_2 - delay: 20ms - switch.turn_on: relay_fan_3 - if: condition: lambda: return (state > .7); then: - switch.turn_on: relay_fan_1 - delay: 20ms - switch.turn_on: relay_fan_2 - delay: 20ms - switch.turn_on: relay_fan_3 - if: condition: lambda: return (state < 0.01); then: - switch.turn_off: relay_fan_1 - delay: 20ms - switch.turn_off: relay_fan_2 - delay: 20ms - switch.turn_off: relay_fan_3
binary_sensor: - platform: gpio id: fan_light_sensor pin: number: GPIO16 mode: INPUT inverted: True on_press: - light.toggle: light1 - platform: gpio id: fan_power_sensor pin: number: GPIO00 mode: INPUT inverted: True on_press: then: - fan.toggle: fan_1 - platform: gpio id: fan_speed_sensor pin: number: GPIO05 mode: INPUT inverted: True on_press: then: - if: condition: and: - switch.is_on: relay_fan_1 - switch.is_off: relay_fan_2 - switch.is_off: relay_fan_3 then: - fan.turn_on: id: fan_1 speed: 2 - if: condition: and: - switch.is_on: relay_fan_1 - switch.is_on: relay_fan_2 - switch.is_off: relay_fan_3 then: - fan.turn_on: id: fan_1 speed: 3 - if: condition: and: - switch.is_on: relay_fan_1 - switch.is_on: relay_fan_2 - switch.is_on: relay_fan_3 then: - fan.turn_on: id: fan_1 speed: 1
fan: - platform: speed id: fan_1 output: fan_speed name: ${friendly_name} Fan Speed speed_count: 3
switch: - platform: restart name: ${friendly_name} REBOOT - platform: gpio id: relay_fan_1 pin: GPIO13 - platform: gpio id: relay_fan_2 pin: GPIO04 - platform: gpio id: relay_fan_3 pin: GPIO15 - platform: template id: update_fan_speed optimistic: True turn_on_action: then: - delay: 200ms - if: condition: and: - switch.is_off: relay_fan_1 - switch.is_off: relay_fan_2 - switch.is_off: relay_fan_3 then: - fan.turn_off: fan_1 - if: condition: and: - switch.is_on: relay_fan_1 - switch.is_off: relay_fan_2 - switch.is_off: relay_fan_3 then: - fan.turn_on: id: fan_1 speed: 1 - if: condition: and: - switch.is_on: relay_fan_1 - switch.is_on: relay_fan_2 - switch.is_off: relay_fan_3 then: - fan.turn_on: id: fan_1 speed: 2 - if: condition: and: - switch.is_on: relay_fan_1 - switch.is_off: relay_fan_2 - switch.is_on: relay_fan_3 then: - fan.turn_on: id: fan_1 speed: 3Series 2 (BK72xx)
substitutions: devicename: "deta-switchfan" friendlyname: Deta Switch Fan deviceid: deta-switchfan devicemodel: Deta Grid Connect 6914HA Series 2
#################################
esphome: name: ${devicename}
bk72xx: board: generic-bk7231t-qfn32-tuya
wifi: ssid: !secret wifi_ssid password: !secret wifi_password ap:
logger:
web_server:
captive_portal:
api:
ota:
sensor: - platform: wifi_signal name: ${friendlyname} Wifi Signal Strength update_interval: 60s - platform: uptime name: ${friendlyname} Uptime
text_sensor: - platform: wifi_info ip_address: name: ${friendlyname} IP ssid: name: ${friendlyname} SSID bssid: name: ${friendlyname} BSSID mac_address: name: ${friendlyname} Mac - platform: version name: ${friendlyname} ESPHome Version
#################################status_led: pin: number: P10 inverted: true
light: - platform: binary output: relay_light id: light1 name: ${friendlyname} Light
output: - platform: gpio id: relay_light pin: P26 - platform: template id: fan_speed type: float write_action: - then: - if: condition: lambda: return ((state > 0) && (state < .4)); then: - switch.turn_on: relay_fan_1 - delay: 20ms - switch.turn_off: relay_fan_2 - delay: 20ms - switch.turn_off: relay_fan_3 - if: condition: lambda: return ((state > .4) && (state < .7)); then: - switch.turn_on: relay_fan_1 - delay: 20ms - switch.turn_on: relay_fan_2 - delay: 20ms - switch.turn_off: relay_fan_3 - if: condition: lambda: return (state > .7); then: - switch.turn_on: relay_fan_1 - delay: 20ms - switch.turn_on: relay_fan_2 - delay: 20ms - switch.turn_on: relay_fan_3 - if: condition: lambda: return (state < 0.01); then: - switch.turn_off: relay_fan_1 - delay: 20ms - switch.turn_off: relay_fan_2 - delay: 20ms - switch.turn_off: relay_fan_3
binary_sensor: - platform: gpio id: fan_light_sensor pin: number: P14 mode: INPUT inverted: True on_press: - light.toggle: light1 - platform: gpio id: fan_power_sensor pin: number: P1 mode: INPUT inverted: True on_press: then: - fan.toggle: fan_1 - platform: gpio id: fan_speed_sensor pin: number: P8 mode: INPUT inverted: True on_press: then: - if: condition: and: - switch.is_on: relay_fan_1 - switch.is_off: relay_fan_2 - switch.is_off: relay_fan_3 then: - fan.turn_on: id: fan_1 speed: 2 - if: condition: and: - switch.is_on: relay_fan_1 - switch.is_on: relay_fan_2 - switch.is_off: relay_fan_3 then: - fan.turn_on: id: fan_1 speed: 3 - if: condition: and: - switch.is_on: relay_fan_1 - switch.is_on: relay_fan_2 - switch.is_on: relay_fan_3 then: - fan.turn_on: id: fan_1 speed: 1
fan: - platform: speed id: fan_1 output: fan_speed name: ${friendlyname} Fan Speed speed_count: 3
switch: - platform: gpio id: relay_fan_1 pin: P6 - platform: gpio id: relay_fan_2 pin: P7 - platform: gpio id: relay_fan_3 pin: P9 - platform: template id: update_fan_speed optimistic: True turn_on_action: then: - delay: 200ms - if: condition: and: - switch.is_off: relay_fan_1 - switch.is_off: relay_fan_2 - switch.is_off: relay_fan_3 then: - fan.turn_off: fan_1 - if: condition: and: - switch.is_on: relay_fan_1 - switch.is_off: relay_fan_2 - switch.is_off: relay_fan_3 then: - fan.turn_on: id: fan_1 speed: 1 - if: condition: and: - switch.is_on: relay_fan_1 - switch.is_on: relay_fan_2 - switch.is_off: relay_fan_3 then: - fan.turn_on: id: fan_1 speed: 2 - if: condition: and: - switch.is_on: relay_fan_1 - switch.is_on: relay_fan_2 - switch.is_on: relay_fan_3 then: - fan.turn_on: id: fan_1 speed: 3