Pull up on A8

[heffneil]

I am using ESPHome and I am seeing a lot of problems with the floating input.  Can someone tell me if I can specify pullup?  I tried with esphome normally and it doesn't like it so I am stuck?

[admin]

which port you are using? take a photo. because the 1-wire ports, it already have pull up resistance on PCB.

[heffneil]

I am using the ports directly to the right of the power input:

picture here:

https://imgur.com/a/FLl1CRC

[admin]

see this photo. S1, S2, S3, S4 ports all have pull up resistance on PCB.

[heffneil]

see this photo. S1, S2, S3, S4 ports all have pull up resistance on PCB.

But I am using the inputs on the top left ground to input off the one chip

[color=oklab(0.89908 -0.00192907 -0.0048306)]  - platform: gpio
    name: "Water Closet Door Sensor"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 1
      mode: INPUT
    filters:
      - delayed_on: 0.5s[/color]

Do these have pull up resistors?  I am seeing significant bouncing?

[admin]

digital input ports ONLY use for dry contact signal.
they are without pull up resistors, because of they not connect with ESP32's pin directly, there are PCF8574 chip's pin.

[heffneil]

I am sorry I don't understand what you are saying. Are you saying I need pull up resistors?

[admin]

see this photo. S1, S2, S3, S4 ports all have pull up resistance on PCB.

But I am using the inputs on the top left ground to input off the one chip

[color=oklab(0.89908 -0.00192907 -0.0048306)]  - platform: gpio
    name: "Water Closet Door Sensor"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 1
      mode: INPUT
    filters:
      - delayed_on: 0.5s[/color]

Do these have pull up resistors?  I am seeing significant bouncing?

these port can't use pull up resistor. they are not connect with ESP32 pin directly. i suggest you test with S1,S2,S3 or S4 port.

[heffneil]

see this photo. S1, S2, S3, S4 ports all have pull up resistance on PCB.

But I am using the inputs on the top left ground to input off the one chip

[color=oklab(0.89908 -0.00192907 -0.0048306)]  - platform: gpio
    name: "Water Closet Door Sensor"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 1
      mode: INPUT
    filters:
      - delayed_on: 0.5s[/color]

Do these have pull up resistors?  I am seeing significant bouncing?

these port can't use pull up resistor. they are not connect with ESP32 pin directly. i suggest you test with S1,S2,S3 or S4 port.

[heffneil]

what are these ports typically used for? This is closed contact testing and shouldnt flap.