An ESPHome component for the Winix C545 air purifier.
In this setup a ESP32-PICO-KIT V4.1 was used due to its availability and small size.
Disassemble the air purifier and remove the control board.
Identify the board and ensure it matches the information below.
Board revision
Winix Inc
C545 Display PBA
Rev 1.0
WiFi module
I&C Technology
WFM60-SFP201
If your board differs, STOP! It is very likely you will damage the board if you disregard this warning.
See the wiki for an alternate board design.
Using the photos as reference, connect the marked points to the ESP32 pins.
NOTE: The host MCU uses 5 V logic so a level shifter is necessary to interface with the 3.3 V ESP32.
Board Point | ESP32 Pin | Notes |
---|---|---|
TX | IO26 (via level shifter) | WiFi UART Tx (WiFi->MCU) |
RX | IO25 (via level shifter) | WiFi UART Rx (MCU->WiFi) |
5V | EXT_5V (5V) | 5 V Supply |
GND | Ground | Ground |
Q16 | N/A | WiFi RESETn Tie to ground to disable OEM WiFi |
See this configuration snippet for a more complete example or use the minimal configuration below.
external_components:
# Pull from Github
- source: github://mill1000/esphome-winix-c545@main
components: [winix_c545]
uart:
- tx_pin: 26
rx_pin: 25
baud_rate: 115200
winix_c545:
fan:
- platform: winix_c545
name: Winix C545 Air Purifier
sensor:
- platform: winix_c545
filter_age:
name: Filter Age
filter_lifetime:
name: Filter Lifetime
aqi:
name: AQI
light:
name: Light Intensity
text_sensor:
- platform: winix_c545
aqi_indicator:
name: AQI Indicator
switch:
- platform: winix_c545
plasmawave:
name: Plasmawave