How do I refer to pins? No reaction from connected relay

ESPHome
1

I’m targeting the ESP32-POE. I’ve tried but I’m wondering if I should be referring to GPIO0 and GPIO1 instead as I get no reaction when I send messages to my predefined MQTT on_message

switch:
  - platform: gpio
    name: "Relay1"
    pin: 0
    id: relay1
    interlock: [relay2]
  - platform: gpio
    name: "Relay2"
    id: relay2
    pin: 1
    interlock: [relay1]

  on_message:
    - topic: traffic/green/on
      then:
        - switch.turn_on: relay2
    - topic: traffic/green/off
      then:
        - switch.turn_off: relay2

I’m not sending a payload, just sending a blank message to the topic.

I can see the device HAS connected to the broker.

Thank you

2

See: Configuration Types — ESPHome

So if you have this in your config:

esphome:
  board: esp32-poe

You can use any of the number mappings. e.g. pin: 1 or GPIO1

Try with a payload.

3

Thanks. I do have the board specified. I’ll do some more digging and see if I can figure it out! Posting full YAML below. Maybe I’m referring to the switches improperly here

    - switch.turn_off: relay2

Thanks for your help so far :slight_smile:

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

mqtt:
  broker: 192.168.1.15
  client_id: Traffic
  topic_prefix: Traffic
  will_message:
    topic: traffic/avail
    payload: offline
  on_message:
    - topic: traffic/green/on
      then:
        - switch.turn_on: relay2
    - topic: traffic/green/off
      then:
        - switch.turn_off: relay2

logger:

api:
  password: "x"

ota:
  password: "x"

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

switch:
  - platform: gpio
    name: "Relay1"
    pin: 0
    id: relay1
    interlock: [relay2]
  - platform: gpio
    name: "Relay2"
    id: relay2
    pin: 1
    interlock: [relay1]
4

Should there be any reason why I can’t use GPIO0 and GPIO1? The pinout suggests not, that they are free once programming is done, but in practice I can see that the software side of things is working - just that I/O pin isn’t responding on cue. I am using ethernet. Tempted to use WiFi temporarily and see if that resolves the issue…

EDIT: Moving to WiFi now gets me one of the relays working. The other one is just stuck on ‘ON’. So it looks like the pinout is wrong?

5

They’re probably not the best pins to use. See the table here: