ESPHome and NodeMCU A0 as DI

ESPHome
1

As the title suggests the documentation says that the A0 pin can be used as a DI.

A0: This pin can be used as a normal GPIO pin (like D1 etc) but additionally can measure voltages from 0 to 1.0V using the Analog To Digital Sensor.

I configured it as follows.

  - platform: gpio
    
    pin: A0
    name: "INPUT 6"

I tried using a pull down and pull up resistor 10K but no luck.

Do I need a different value or have I missed something?

Regards,

2

In a binary_sensors: block, I assume. Please create an issue at GitHub, I’d have to test myself, otherwise we should modify docs.

3

I’m experiencing the same issue.

  • Did you find a solution?
  • Did you make a GitHub issue for it?

My code in esphome configfile.yaml

binary_sensor:
  - platform: gpio
    pin:
      number: A0
    id: button
    name: "Test button"

The binary input is allways ON, whether I connect it to +3.3 or to GND.
I use nodeMCU V2