Hacking the Ikea UPPÅTVIND Air Purifier.
U1 Pinout
5V -|°---|- Motor
Filter LED -| |- GND
Speed LED -| |- Motor
Filter Button -|----|- Speed Button
Test Points
TP2 GND
TP3 5V
TP4 Speed Button
TP5 Filter Button
TP6 Filter LED
TP7 Speed LED
TP9 Motor PWM
TP10 Motor FG
Connection TP > Wemos
TP2 > GND
TP3 > 5V
TP4 > D1 (5)
TP6 > D2 (4)
TP7 > A0
Homebridge Config
{
"accessory": "mqttthing",
"type": "airPurifier",
"name": "UPPÅTVIND",
"url": "mqtt://YOURMQTTSERVER:1883",
"topics": {
"setActive": "/home/data/UPPATVIND/setActive",
"getActive": "/home/data/UPPATVIND/getActive",
"getCurrentAirPurifierState": "/home/data/UPPATVIND/getCurrentAirPurifierState",
"setTargetAirPurifierState": "/home/data/UPPATVIND/setCurrentAirPurifierState",
"getTargetAirPurifierState": "/home/data/UPPATVIND/getTargetAirPurifierState",
"getFilterChangeIndication": "/home/data/UPPATVIND/getFilterChangeIndication",
"getRotationSpeed": "/home/data/UPPATVIND/getRotationSpeed",
"setRotationSpeed": "/home/data/UPPATVIND/setRotationSpeed"
},
"integerValue": "true"
}