Custom component for EspHome to control your extraflame oven.

I will not anwser to mails, written about this project!! A issue can be read from anyone and a mail is only between two people.

I will describe here only the software part. The wiring with the board can be done in different ways. Some are described here

Another way is documented here

Please add the following snippet into your configuration file. More information about external_components can be found in the official docs

external_components:
  - source: github://edenhaus/esphome-extraflame
    components: [extraflame]

The base configuration is needed for all other components to work. Copy the configuration below into your configuration file. For further options of uart please refer to the docs

uart:
  baud_rate: 1200
  # data_bits: 8
  # parity: NONE
  stop_bits: 2

extraflame:

With a sensor it is possible to read any value from the RAM or EEPROM. It will be reported as decimal number. The addresses seem to be different for different boards. A reference can be found here

Typical example of using this sensor would look like this:

sensor:
  - platform: extraflame
    memory: RAM
    address: 0x01

Here is what every options means:

You can use in addition all sensor options. As for example the temperature must be divided by 2, below an complete example, where I use the built in filters.

sensor:
  - platform: extraflame
    memory: RAM
    address: 0x01
    name: ${name} Temperatur
    filters:
      - multiply: 0.5

Writing a value can be done with the following action:

extraflame.write:
  memory: RAM
  address: 0x21
  value: 0x01

Here is what every options means:

All fields can be used with template and lambdas. More information about action can be found in the official documentation. Before writing the value to the memory, a read request is send to verify if a write command is necessary. This should reduce unnecessary write as the EEPROM can has only a certain number of writes.

As different oven, stores the interesting data on different addresses, we need a way to dump all or certain values. To use the "dumping" as flexable as possible, dumping is an action. More information about action and automation can be found here.

- extraflame.dump:
    memory: RAM
    start: 0x00
    end: 0xFF
    on_dump_finish:
      then:
        - http_request.send:
            method: POST
            url: your_URL
            headers:
              Content-Type: application/json
            body: !lambda return data.c_str();

Here is what every options means:

Please check out the example for a complete example.

This component is at an early stage so please be aware that there can be bugs...

Robert Resch, MIT, 2021