KC868-A8 Touch wall panel indication working reverse and temperature sensor

[vijjav]

Hi Xu Wei,

Good day, I need assitance for two things.

1. My DHT sensor not reading temperature and the ESPHome log messages output below. 

Code:

[20:03:03][C][dallas.sensor:075]: DallasComponent:
[20:03:03][C][dallas.sensor:076]:   Pin: GPIO14
[20:03:03][C][dallas.sensor:077]:   Update Interval: 60.0s
[20:03:03][W][dallas.sensor:080]:   Found no sensors!
[20:03:03][C][dallas.sensor:089]:   Device 'study_room_temperature_sensor'
[20:03:03][C][dallas.sensor:089]:     Device Class: 'temperature'
[20:03:03][C][dallas.sensor:089]:     State Class: 'measurement'
[20:03:03][C][dallas.sensor:089]:     Unit of Measurement: '°C'
[20:03:03][C][dallas.sensor:089]:     Accuracy Decimals: 1
[20:03:03][C][dallas.sensor:097]:     Address: 0x1c0000031edd2a28
[20:03:03][C][dallas.sensor:098]:     Resolution: 12

[20:03:55][E][dallas.sensor:112]: Requesting conversion failed
[20:03:55][D][sensor:094]: 'study_room_temperature_sensor': Sending state nan °C with 1 decimals of accuracy

I have tried connecting my DHT11 sensor to both S1 & S2 input terminals and getting the same error for reading the temperature.

2. I am trying to make the Touch Wall Panel Switch glow when turning on inputs, I know KC868-A8 not having a digital input, but i made a small adjustment and patched a wire from relay 1 GND output terminal in the PCB and connected to Switch D1. K1 is connected to input.

All looks good, but the LED is turning ON when the switch 1 is turned off and LED is Off when switch 1 is turned ON.

Connection Details:

A8 Board Input 1 --> Wall Switch K1
A8 Board Relay 1 Digital Input GND soldered from PCB --> Wall Switch D1
A8 Board S1 --> DTH11 Data terminal , VCC and Ground connected in the S1-S4 terminal block VCC & GND.

My ESPHome code block is a below, I tried several 'Inverted : true" at switch component and binalry_sensor component in yaml file, but I am missing some basic part.

Need your help to overcome my Two issues.

Code:

#
esphome:
  name: a8-study-room
  platform: ESP32
  board: esp32dev


# Example configuration entry for ESP32
i2c:
  sda: 4
  scl: 5
  scan: true
  id: bus_a

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: "********************************************"

ota:
  password: "0fb1fa5d2db965e28cfb201d5afaf06c"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Kc868-A8 Fallback Hotspot"
    password: "************"

captive_portal:

# Example configuration entry
pcf8574:
  - id: 'pcf8574_hub_out_1'  # for output channel 1-8
    address: 0x24

  - id: 'pcf8574_hub_in_1'  # for input channel 1-8
    address: 0x22

# Individual outputs
switch:
  - platform: gpio
    name: "Study Room Fan"
    id: a8_study_room_fan
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 0
      mode: OUTPUT
      inverted: false

     
binary_sensor:
  - platform: gpio
    name: "a8_study_room_fan"
    on_press:
      then:
        - switch.toggle: a8_study_room_fan
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 0
      mode:
        input: true

dallas:
  - pin: 14

sensor:
  - platform: dallas
    address: 0x1c0000031edd2a28
    name: "study_room_temperature_sensor"