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KC868-A64 configure for ESPhome
#1
esphome:
  name: a64
  platform: ESP32
  board: esp32dev


# Enable logging
logger:

# Enable Home Assistant API
api:


# Example configuration entry
i2c:
  - id: bus_a
    sda: 5
    scl: 16
    scan: true
    frequency: 400kHz
  - id: bus_b
    sda: 15
    scl: 4
    scan: true
    frequency: 400kHz
   

# Example configuration entry
ethernet:
  type: LAN8720
  mdc_pin: GPIO23
  mdio_pin: GPIO18
  clk_mode: GPIO17_OUT
  phy_addr: 0

  # Optional manual IP
  manual_ip:
    static_ip: 192.168.1.198
    gateway: 192.168.1.1
    subnet: 255.255.255.0 

# Example configuration entry
pcf8574:
  - id: 'pcf8574_hub_out_1'  # for output channel 1-16
    i2c_id: bus_a
    address: 0x24
    pcf8575: true

  - id: 'pcf8574_hub_out_2'  # for output channel 17-32
    i2c_id: bus_a
    address: 0x25
    pcf8575: true

  - id: 'pcf8574_hub_out_3'  # for output channel 33-48
    i2c_id: bus_a
    address: 0x21
    pcf8575: true

  - id: 'pcf8574_hub_out_4'  # for output channel 49-64
    i2c_id: bus_a
    address: 0x22
    pcf8575: true
   
  - id: 'pcf8574_hub_in_1'  # for a64--input channel 1-16
    i2c_id: bus_b
    address: 0x24
    pcf8575: true

  - id: 'pcf8574_hub_in_2'  # for a64--input channel 17-32
    i2c_id: bus_b
    address: 0x25
    pcf8575: true

  - id: 'pcf8574_hub_in_3'  # for a64--input channel 33-48
    i2c_id: bus_b
    address: 0x21
    pcf8575: true

  - id: 'pcf8574_hub_in_4'  # for a64--input channel 49-64
    i2c_id: bus_b
    address: 0x22
    pcf8575: true 
   
# Individual outputs
switch:
  - platform: gpio
    name: "a64--light1"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 0
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light2"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 1
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light3"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 2
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light4"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 3
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "a64--light5"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 4
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light6"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 5
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light7"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 6
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light8"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 7
      mode: OUTPUT
      inverted: true


  - platform: gpio
    name: "a64--light9"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 8
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light10"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 9
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light11"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 10
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light12"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 11
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "a64--light13"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 12
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light14"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 13
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light15"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 14
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light16"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 15
      mode: OUTPUT
      inverted: true
     
     
  - platform: gpio
    name: "a64--light17"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 0
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light18"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 1
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light19"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 2
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light20"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 3
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "a64--light21"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 4
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light22"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 5
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light23"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 6
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light24"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 7
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "a64--light25"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 8
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light26"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 9
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light27"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 10
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light28"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 11
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "a64--light29"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 12
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light30"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 13
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light31"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 14
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light32"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 15
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light33"
    pin:
      pcf8574: pcf8574_hub_out_3
      number: 0
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light34"
    pin:
      pcf8574: pcf8574_hub_out_3
      number: 1
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light35"
    pin:
      pcf8574: pcf8574_hub_out_3
      number: 2
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light36"
    pin:
      pcf8574: pcf8574_hub_out_3
      number: 3
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "a64--light37"
    pin:
      pcf8574: pcf8574_hub_out_3
      number: 4
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light38"
    pin:
      pcf8574: pcf8574_hub_out_3
      number: 5
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light39"
    pin:
      pcf8574: pcf8574_hub_out_3
      number: 6
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light40"
    pin:
      pcf8574: pcf8574_hub_out_3
      number: 7
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "a64--light41"
    pin:
      pcf8574: pcf8574_hub_out_3
      number: 8
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light42"
    pin:
      pcf8574: pcf8574_hub_out_3
      number: 9
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light43"
    pin:
      pcf8574: pcf8574_hub_out_3
      number: 10
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light44"
    pin:
      pcf8574: pcf8574_hub_out_3
      number: 11
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "a64--light45"
    pin:
      pcf8574: pcf8574_hub_out_3
      number: 12
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light46"
    pin:
      pcf8574: pcf8574_hub_out_3
      number: 13
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light47"
    pin:
      pcf8574: pcf8574_hub_out_3
      number: 14
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light48"
    pin:
      pcf8574: pcf8574_hub_out_3
      number: 15
      mode: OUTPUT
      inverted: true


  - platform: gpio
    name: "a64--light49"
    pin:
      pcf8574: pcf8574_hub_out_4
      number: 0
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light50"
    pin:
      pcf8574: pcf8574_hub_out_4
      number: 1
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light51"
    pin:
      pcf8574: pcf8574_hub_out_4
      number: 2
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light52"
    pin:
      pcf8574: pcf8574_hub_out_4
      number: 3
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "a64--light53"
    pin:
      pcf8574: pcf8574_hub_out_4
      number: 4
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light54"
    pin:
      pcf8574: pcf8574_hub_out_4
      number: 5
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light55"
    pin:
      pcf8574: pcf8574_hub_out_4
      number: 6
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light56"
    pin:
      pcf8574: pcf8574_hub_out_4
      number: 7
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "a64--light57"
    pin:
      pcf8574: pcf8574_hub_out_4
      number: 8
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light58"
    pin:
      pcf8574: pcf8574_hub_out_4
      number: 9
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light59"
    pin:
      pcf8574: pcf8574_hub_out_4
      number: 10
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light60"
    pin:
      pcf8574: pcf8574_hub_out_4
      number: 11
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "a64--light61"
    pin:
      pcf8574: pcf8574_hub_out_4
      number: 12
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light62"
    pin:
      pcf8574: pcf8574_hub_out_4
      number: 13
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light63"
    pin:
      pcf8574: pcf8574_hub_out_4
      number: 14
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "a64--light64"
    pin:
      pcf8574: pcf8574_hub_out_4
      number: 15
      mode: OUTPUT
      inverted: true



     
     
     
# Individual inputs
binary_sensor:
  - platform: gpio
    name: "a64--input1"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 0
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input2"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 1
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input3"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 2
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input4"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 3
      mode: INPUT
      inverted: true
     
  - platform: gpio
    name: "a64--input5"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 4
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input6"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 5
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input7"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 6
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input8"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 7
      mode: INPUT
      inverted: true


  - platform: gpio
    name: "a64--input9"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 8
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input10"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 9
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input11"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 10
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input12"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 11
      mode: INPUT
      inverted: true
     
  - platform: gpio
    name: "a64--input13"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 12
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input14"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 13
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input15"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 14
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input16"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 15
      mode: INPUT
      inverted: true
     
     
  - platform: gpio
    name: "a64--input17"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 0
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input18"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 1
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input19"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 2
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input20"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 3
      mode: INPUT
      inverted: true
     
  - platform: gpio
    name: "a64--input21"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 4
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input22"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 5
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input23"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 6
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input24"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 7
      mode: INPUT
      inverted: true
     
  - platform: gpio
    name: "a64--input25"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 8
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input26"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 9
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input27"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 10
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input28"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 11
      mode: INPUT
      inverted: true
     
  - platform: gpio
    name: "a64--input29"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 12
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input30"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 13
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input31"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 14
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input32"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 15
      mode: INPUT
      inverted: true


  - platform: gpio
    name: "a64--input33"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 0
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input34"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 1
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input35"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 2
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input36"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 3
      mode: INPUT
      inverted: true
     
  - platform: gpio
    name: "a64--input37"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 4
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input38"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 5
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input39"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 6
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input40"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 7
      mode: INPUT
      inverted: true
     
  - platform: gpio
    name: "a64--input41"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 8
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input42"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 9
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input43"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 10
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input44"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 11
      mode: INPUT
      inverted: true
     
  - platform: gpio
    name: "a64--input45"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 12
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input46"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 13
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input47"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 14
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input48"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 15
      mode: INPUT
      inverted: true


  - platform: gpio
    name: "a64--input49"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 0
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input50"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 1
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input51"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 2
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input52"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 3
      mode: INPUT
      inverted: true
     
  - platform: gpio
    name: "a64--input53"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 4
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input54"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 5
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input55"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 6
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input56"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 7
      mode: INPUT
      inverted: true
     
  - platform: gpio
    name: "a64--input57"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 8
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input58"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 9
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input59"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 10
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input60"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 11
      mode: INPUT
      inverted: true
     
  - platform: gpio
    name: "a64--input61"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 12
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input62"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 13
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input63"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 14
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "a64--input64"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 15
      mode: INPUT
      inverted: true

# Example configuration entry
sensor:
  - platform: adc
    pin: 39
    name: "a64--analog--1"
    update_interval: 20s
    attenuation: 11db

  - platform: adc
    pin: 34
    name: "a64--analog--2"
    update_interval: 20s
    attenuation: 11db
   
  - platform: adc
    pin: 36
    name: "a64--analog--3"
    update_interval: 20s
    attenuation: 11db
   
  - platform: adc
    pin: 35
    name: "a64--analog--4"
    update_interval: 20s
    attenuation: 11db


Attached Files
.txt   KC868-A64-ESPHome_PCF8575_Analog.txt (Size: 21.08 KB / Downloads: 435)
Reply
#2
Hi all,
I am having an issue with this board.
I configured ESPHome as per your instruction but one PCF8575TS (address 0x25) corresponding to outputs 17-32 is not working properly.
All other PCF8575TS are perfectly working.
I checked voltage on pin A0, A1 and A2 of PCF8575TS (according data sheet these pins are defining the address) and everything is correct (A0 3.3V, A1 GND, A2 3.3V).
ESPHome log says:

[11:48:35][C][pcf8574:021]: PCF8574:
[11:48:35][C][pcf8574:022]: Address: 0x24
[11:48:35][C][pcf8574:023]: Is PCF8575: YES
[11:48:35][C][pcf8574:021]: PCF8574:
[11:48:35][C][pcf8574:022]: Address: 0x25
[11:48:36][C][pcf8574:023]: Is PCF8575: YES
[11:48:36][E][pcf8574:025]: Communication with PCF8574 failed!
[11:48:36][C][pcf8574:021]: PCF8574:
[11:48:36][C][pcf8574:022]: Address: 0x21
[11:48:36][C][pcf8574:023]: Is PCF8575: YES
[11:48:36][C][pcf8574:021]: PCF8574:
[11:48:36][C][pcf8574:022]: Address: 0x22
[11:48:36][C][pcf8574:023]: Is PCF8575: YES
[11:48:36][C][pcf8574:021]: PCF8574:
[11:48:36][C][pcf8574:022]: Address: 0x24
[11:48:36][C][pcf8574:023]: Is PCF8575: YES
[11:48:36][C][pcf8574:021]: PCF8574:
[11:48:36][C][pcf8574:022]: Address: 0x25
[11:48:36][C][pcf8574:023]: Is PCF8575: YES
[11:48:36][C][pcf8574:021]: PCF8574:
[11:48:36][C][pcf8574:022]: Address: 0x21
[11:48:36][C][pcf8574:023]: Is PCF8575: YES
[11:48:36][C][pcf8574:021]: PCF8574:
[11:48:36][C][pcf8574:022]: Address: 0x22
[11:48:36][C][pcf8574:023]: Is PCF8575: YES

It seems a failure of PCF8575TS chip.

Can you please confirm?

Thank you
Reply
#3
check your esphome LOG, it will scan all I2C bus device address and output in LOG. whether one of PCF8575 address is wrong.
Reply
#4
(03-18-2023, 12:24 PM)admin Wrote: check your esphome LOG, it will scan all I2C bus device address and output in LOG. whether one of PCF8575 address is wrong.

Hi,
I posted the  esphome LOG.
address 0x25 is correct since I verified it with voltage levels on pins A0, A1, A2 of  PCF8575.
It seems a failure of PCF8575 (infact after boot all I/Os of that specific IC are high, as described on  PCF8575 datasheet... it seems there is no communication).

Thank you

Marcello
Reply
#5
at begin of ESPHome LOG , after work begin with IIC, that will showed all scaned IIC address. check here, whether address is not 0x25.
Reply
#6
Hello,
Which type of connector is use for extend i2c and serial?
Can you give aliexpress url please?
Reply
#7
just use 2.54mm connector.
   
Reply
#8
What pins are used for modbas?
Reply
#9
RS485 use modbus.
Reply


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