Gas fireplace (Mertik Maxitrol) with rfxtrx

Third party integrations
12

@aerodolphin Due to having to use Ethernet, I am currently controlling our fireplace using ESPHome and an ESP32-POE with 433MHz transmitter.

In case it’s of any help, below is my configuration YAML in ESPHome. As you can see, I have four commands (power on/off, and flame up/down). Each command is defined as a switch (i.e. 433MHz transmitter sends the code to the fireplace), as well as a binary sensor (HA detects when the original remote’s buttons are pressed, and also when the 433MHz transmitter sends the codes). The binary sensors are not really necessary, but I really wanted to make sure I was able to go full circle (due to being a control freak :slight_smile: ).

esphome:
  name: esp32_poe_2
  platform: ESP32
  board: esp32-poe

ethernet:
  type: LAN8720
  mdc_pin: GPIO23
  mdio_pin: GPIO18
  clk_mode: GPIO17_OUT
  phy_addr: 0
  power_pin: GPIO12

logger:

api:

ota:

remote_transmitter:
  pin: GPIO32
  carrier_duty_percent: 100%

remote_receiver:
  pin: 
    number: GPIO33
    inverted: True
    mode: INPUT_PULLUP
  filter: 200us # default = 10us
  idle: 4ms # default = 10ms

binary_sensor:

# Fireplace

  - platform: remote_receiver
    name: Fireplace On
    rc_switch_raw:
      code: '1010011110011'
      protocol:
        pulse_length: 380
        sync: [45, 1]
        zero: [1, 2]
        one: [2, 1]
        inverted: true
    filters:
      - delayed_off: 1000ms

  - platform: remote_receiver
    name: Fireplace Off
    rc_switch_raw:
      code: '1010011110111'
      protocol:
        pulse_length: 380
        sync: [45, 1]
        zero: [1, 2]
        one: [2, 1]
        inverted: true
    filters:
      - delayed_off: 1000ms

  - platform: remote_receiver
    name: Flame Up
    rc_switch_raw:
      code: '1010011111011'
      protocol:
        pulse_length: 380
        sync: [45, 1]
        zero: [1, 2]
        one: [2, 1]
        inverted: true
    filters:
      - delayed_off: 1000ms

  - platform: remote_receiver
    name: Flame Down
    rc_switch_raw:
      code: '1010011111101'
      protocol:
        pulse_length: 380
        sync: [45, 1]
        zero: [1, 2]
        one: [2, 1]
        inverted: true
    filters:
      - delayed_off: 1000ms

switch:

# Fireplace

  - platform: template
    name: Fireplace
    icon: "mdi:fireplace"
    optimistic: true
    assumed_state: true
    turn_on_action:
#      - remote_transmitter.transmit_raw:
#          carrier_frequency: 433MHz
#          code: [ 380, -380, 380, -760, 760, -380, 380, -760, 380, -760, 760, -380, 760, -380, 760, -380, 760, -380, 380, -760, 380, -760, 760, -380, 760, -17200 ]
#          repeat:
#            times: 120
      - remote_transmitter.transmit_rc_switch_raw:
          code: '1010011110011'
          protocol:
            pulse_length: 380
            sync: [1, 45]
            zero: [1, 2]
            one: [2, 1]
          repeat:
            times: 120
            wait_time: 10ms
    turn_off_action:
#      - remote_transmitter.transmit_raw:
#          carrier_frequency: 433MHz
#          code: [ 380, -380, 380, -760, 760, -380, 380, -760, 380, -760, 760, -380, 760, -380, 760, -380, 760, -380, 380, -760, 760, -380, 760, -380, 760, -17200 ]
#          repeat:
#            times: 60
      - remote_transmitter.transmit_rc_switch_raw:
          code: '1010011110111'
          protocol:
            pulse_length: 380
            sync: [1, 45]
            zero: [1, 2]
            one: [2, 1]
          repeat:
            times: 60
            wait_time: 10ms

  - platform: template
    name: Flame
    icon: "mdi:fire"
    optimistic: true
    assumed_state: true
    turn_on_action:
#      - remote_transmitter.transmit_raw:
#          carrier_frequency: 433MHz
#          code: [ 380, -380, 380, -760, 760, -380, 380, -760, 380, -760, 760, -380, 760, -380, 760, -380, 760, -380, 380, -380, 380, -760, 760, -380, 760, -17200 ]
#          repeat:
#            times: 60
      - remote_transmitter.transmit_rc_switch_raw:
          code: '1010011111011'
          protocol:
            pulse_length: 380
            sync: [1, 45]
            zero: [1, 2]
            one: [2, 1]
          repeat:
            times: 60
            wait_time: 10ms
    turn_off_action:
#      - remote_transmitter.transmit_raw:
#          carrier_frequency: 433MHz
#          code: [ 380, -380, 380, -760, 760, -380, 380, -760, 380, -760, 760, -380, 760, -380, 760, -380, 760, -380, 760, -380, 760, -380, 380, -760, 760, -17200 ]
#          repeat:
#            times: 60
      - remote_transmitter.transmit_rc_switch_raw:
          code: '1010011111101'
          protocol:
            pulse_length: 380
            sync: [1, 45]
            zero: [1, 2]
            one: [2, 1]
          repeat:
            times: 60
            wait_time: 10ms

For testing purposes, I include all of these entities in a Lovelace card:

image
image530×534 14.3 KB

I have some photos of the hardware in another post (bottom half of the post):

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