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+--- Thread: getting the A8A inputs to work? (/showthread.php?tid=9838)
getting the A8A inputs to work? - bboett - 09-18-2026
Hello!
i have a Kincony A8 i finally try to get working....
the relais i got working, but the inputs don't....
i flashed from esphome the follwoing:
esphome:
name: kc868-a8
friendly_name: relais_wohnung
esp32:
variant: esp32
board: esp32dev
framework:
type: arduino
# I2C Bus für die Relais-Ansteuerung
i2c:
sda: GPIO4
scl: GPIO5
scan: true
id: bus_a
pcf8574:
- id: pcf8574_hub_in_1
address: 0x22
pcf8575: false
binary_sensor:
- platform: gpio
name: "A8 Input 1"
pin:
pcf8574: pcf8574_hub_in_1
number: 0
mode: INPUT
inverted: true
- platform: gpio
name: "A8 Input 2"
pin:
pcf8574: pcf8574_hub_in_1
number: 1
mode: INPUT
inverted: true
- platform: gpio
name: "A8 Input 3"
pin:
pcf8574: pcf8574_hub_in_1
number: 2
mode: INPUT
inverted: true
- platform: gpio
name: "A8 Input 4"
pin:
pcf8574: pcf8574_hub_in_1
number: 3
mode: INPUT
inverted: true
- platform: gpio
name: "A8 Input 5"
pin:
pcf8574: pcf8574_hub_in_1
number: 4
mode: INPUT
inverted: true
- platform: gpio
name: "A8 Input 6"
pin:
pcf8574: pcf8574_hub_in_1
number: 5
mode: INPUT
inverted: true
- platform: gpio
name: "A8 Input 7"
pin:
pcf8574: pcf8574_hub_in_1
number: 6
mode: INPUT
inverted: true
- platform: gpio
name: "A8 Input 8"
pin:
pcf8574: pcf8574_hub_in_1
number: 7
mode: INPUT
inverted: true
logger:
api:
encryption:
key: "*****"
ota:
- platform: esphome
ethernet:
type: LAN8720
mdc_pin: GPIO23
mdio_pin: GPIO18
clk:
mode: CLK_OUT
pin: 17
phy_addr: 0
i tried to put common the pin 3, on GND, then 12V, then GND again.... i tried directly to put 12V or GND, when inversed, with a wire directly to the contacts, not a peep? what am i doing wrong?
i thought that electrically speaking i go 12V to the houe bell switch, back to the input entry, and put the 12V- GND on common? but that simply doesn't do it?
RE: getting the A8A inputs to work? - admin - 09-19-2026
you can take a photo how you wire?
i don't understand which pin on PCB are you are using.