Support for Chinese Diesel Heaters

[deanfourie1]

Describe the problem you have/What new integration you would like
Integration for the Chinese Diesel Heater models using the RF remote control

Please describe your use case for this integration and alternatives you've tried:
There are no solutions, but there is already an arduino library available for this here

https://github.com/jakkik/DieselHeaterRF

Also here

https://github.com/TMakins/CDHInterface
https://github.com/TMakins/CDH_I2C_Interface

Additional context
Would love to see this integrated in HA and ESPhome and sure there are many people who could use this integration.

[jamien82]

If you haven't already check out Afterburner
http://www.mrjones.id.au/afterburner/

[Bakermonitor1932]

I would also love a heater controller.

[timmchugh11]

I got round to getting a (working?) custom component that reads the data from the heater, its the first custom component I have made for esphome, so could probably be much better.

This connects directly to the blue wire to read the data being transmitted from the controller and then the reply from the heater.

https://github.com/timmchugh11/Chinese-Diesel-Heater---ESPHome

I am looking at adding control as well, but I am yet to work it out.

[benek984]

100% interested in this. I would love to read and send commands to my diesel heater via RF bridge on ESPHOME

[twanjaarsveld]

Did anyone get controlling the Heater using Esphome working?

[djdaveb]

Im invested. I need to be able to control my heater. I'll get this installed and see what i find

[deanfourie1]

Im invested. I need to be able to control my heater. I'll get this installed and see what i find

Any update? Anxiously waiting

[conor-o-brien]

I got this working tonight with tasmota using the portish firmware. The trick was adding 1 to the 5th byte to extend the time the command is sent for. I have attached the rfraw codes that worked for me. Hopefully they will work for you too. I tried with esphome but couldn't get it working
https://drive.google.com/file/d/1i0107H01IKsyQFPWNC8vK83YkaR8_wjx/view?usp=drivesdk

[conor-o-brien]

This is the documentation page https://tasmota.github.io/docs/devices/Sonoff-RF-Bridge-433/#portisch-firmware-specific-usage for anyone that is interested.

[deanfourie1]

Bugger, I don't use sonoff.

Good work!

[deanfourie1]

Also, take a look at this.

https://github.com/timmchugh11/Chinese-Diesel-Heater---ESPHome

[mohannaddubagh]

anyone get controlling the Heater using Esphome ?

[conor-o-brien]

So I got this to work with esphome aswell using the rf bridge component https://esphome.io/components/rf_bridge.html?highlight=bridge.
This is the code I used and a screenshot of bitbucket converter.

esphome:
  name: rf-bridge
  friendly_name: rf-bridge

esp8266:
  board: esp01_1m

uart:
  tx_pin: 1
  rx_pin: 3
  baud_rate: 19200

logger:
  baud_rate: 0

rf_bridge:
  on_code_received:
    then:
      - homeassistant.event:
          event: esphome.rf_code_received
          data:
            sync: !lambda 'return format_hex(data.sync);'
            low: !lambda 'return format_hex(data.low);'
            high: !lambda 'return format_hex(data.high);'
            code: !lambda 'return format_hex(data.code);'

# Enable Home Assistant API
api:
  encryption:
    key:  !secret encryption_key
  services:
    - service: send_rf_code
      variables:
        sync: int
        low: int
        high: int
        code: int
      then:
        - rf_bridge.send_code:
            sync: !lambda 'return sync;'
            low: !lambda 'return low;'
            high: !lambda 'return high;'
            code: !lambda 'return code;'
    - service: learn
      then:
        - rf_bridge.learn

ota:
  password:  !secret ota

wifi:
  networks:
    - ssid: !secret wifi_ssid
      password: !secret wifi_password
    - ssid: !secret ssid
      password: !secret wifipass

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Rf-Bridge Fallback Hotspot"
    password: "FJjBkF3fKvFk"

captive_portal:
    
switch:
  - platform: template
    name: "Heat On/Off"
    icon: "mdi:power"  
    id: power
    turn_on_action:
      - switch.template.publish: 
          id: power
          state: ON
      - rf_bridge.send_raw:
          raw: AAB021031801AE047E2FE42818181819090908190909081908181819081818190818181855
    turn_off_action:
      - switch.template.publish: 
          id: power
          state: OFF
      - rf_bridge.send_raw:
          raw: AAB021031801B804882FEE2818181819090908190909081908181819081818181908181855
          
button:
  - platform: template
    name: "Heat Up"
    on_press:
        - rf_bridge.send_raw:
            raw: AAB021030801B8047E2FE42818181819090908190909081908181819081818181819081855
  - platform: template
    name: "Heat Down"
    on_press:
        - rf_bridge.send_raw:
            raw: AAB021030801AE04882FEE2818181819090908190909081908181819081818181818190855
  - platform: template
    name: "Bucket sniffing"
    icon: "mdi:power"  
    id: sniffing
    on_press:
      - rf_bridge.start_bucket_sniffing

The sniffed codes need to be wrapped in json like in the screenshot

I have also included the codes I have sniffed in esphome here
sniffed remote codes.txt

[pavelw]

I got round to getting a (working?) custom component that reads the data from the heater, its the first custom component I have made for esphome, so could probably be much better.

This connects directly to the blue wire to read the data being transmitted from the controller and then the reply from the heater.

https://github.com/timmchugh11/Chinese-Diesel-Heater---ESPHome

I am looking at adding control as well, but I am yet to work it out.

Looks neat! I plan to try it out.

The blue webasto pilot has exactly those lines needed:
🟦 serial data
🟥 +5V
🚫 - (ground)

Ray Jones in the doc you are referring: https://gitlab.com/mrjones.id.au/bluetoothheater/-/blob/master/Documentation/V9%20-%20Hacking%20the%20Chinese%20Diesel%20Heater%20Communications%20Protocol.pdf?ref_type=heads

notes in his arduino sketch:

• Blue wire connected to Serial 1 Rx input - preferably with series 680ohm resistor.

so I will try to connect via some resistor