TuYa MINI-W1-4CH - PSW-4CH-CBU
Product Images


Programming
Solder USB TTL wires like below

To enter bootloader mode, ground CEN pin and power device. I used https://github.com/libretiny-eu/ltchiptool to program it
GPIO Pinout
| Pin | Function |
|---|---|
| GPIO23 | Push Button |
| GPIO10 | Relay #1 |
| GPIO24 | Relay #2 |
| GPIO26 | Relay #3 |
| GPIO28 | Relay #4 |
| GPIO11 | Status LED |
| GPIO6 | S1 |
| GPIO7 | S2 |
| GPIO8 | S3 |
| GPIO9 | S4 |
Basic Configuration
substitutions:
device_name: tuya-wifi-4ch
esphome:
name: tuya-wifi-4ch
friendly_name: tuya-wifi-4ch
bk72xx:
board: cbu
logger:
captive_portal:
status_led:
pin:
number: GPIO11
inverted: yes
output:
- platform: gpio
pin: GPIO10
id: relay1
- platform: gpio
pin: GPIO24
id: relay2
- platform: gpio
pin: GPIO26
id: relay3
- platform: gpio
pin: GPIO28
id: relay4
light:
- platform: binary
name: "Relay 1"
output: relay1
id: sw1
- platform: binary
name: "Relay 2"
output: relay2
id: sw2
- platform: binary
name: "Relay 3"
output: relay3
id: sw3
- platform: binary
name: "Relay 4"
output: relay4
id: sw4
binary_sensor:
- platform: gpio
internal: true
pin:
number: GPIO6
mode:
input: true
pullup: true
inverted: true
name: "S1"
on_press:
- light.toggle: sw1
- platform: gpio
internal: true
pin:
number: GPIO7
mode:
input: true
pullup: true
inverted: true
name: "S2"
on_press:
- light.toggle: sw2
- platform: gpio
internal: true
pin:
number: GPIO8
mode:
input: true
pullup: true
inverted: true
name: "S3"
on_press:
- light.toggle: sw3
- platform: gpio
internal: true
pin:
number: GPIO9
mode:
input: true
pullup: true
inverted: true
name: "S4"
on_press:
- light.toggle: sw4
- platform: gpio
internal: true
pin:
number: GPIO23
mode:
input: true
pullup: true
inverted: true
name: "Push Button"