An Arduino code for ESP8266 module which controls your motorized window shades and turn into wireless motorized one. You can control them via Apple homekit.
My motorized window shades at home are controlled by 2 switches, one for up the other for down. Few weeks ago I started with a homebridge on a Pi for Apple homekit, working quite nicely. I was looking for a possibility to control my shades via homekit and found the sketch of psled, which is quit nice, but I have the motors already installed and wanted to control up to 2 shades per ESP8266. So I used from psled only his HTTP part and wrote the controller part new using the Arduino IDE. To improve accuracy I used tasks. Position is controlled by moving time. I call the moving/controll task every total-move-time divided by 100. So I have to add or subtract only 1 of the current position. Important for my wife was that the switches will have the same function as before, so I integrated them into the programm and the are working in the same way as giving a position command from homekit, except that if you press them a second time (doesn't matter which one) the shades will stop.
- ESP8266 module (I used WeMos D1 mini)
- double relay for Arduino (try to use the ones working with 3.3V)
- switches were already mounted in the wall
- 5V power supply (cheap mobile charger is working fine, but be aware that here you may have high voltage poweron the 5V side!!!!!!!!!!!!!!!!! )
Keep in mind that the relays are switching high voltage of your window shades!!!!
My shades have an automatic stop at the end, but I can not detect it with this controller.
First, download and install ESP8266 Arduino if you haven't done this before.
Connect the components, but be aware the high voltage!!! So don t do if you are not a professional.
Finally, upload code from this repository to your ESP8266 module.
Do not forget to change the password for the AP in the ino file and the standard SSID and password in the settings.h file.
Check out the Homebridge plugin. It was created to allow you to operate your ESP8266 module with Apple HomeKit platform and Siri.
- Current position
GET /window/0/currentPosition HTTP/1.1
- Position state
GET /window/0/positionState HTTP/1.1
- Target position
GET /window/0/targetPosition HTTP/1.1
POST /window/1/targetSetPosition HTTP/1.1
Content-Type: application/json
value=78
V 0.0.9 stable
- running, but no targetPosition GET HttpMethod
- Up and Down with same timing
V 0.1.0
- read targetPosition by GET HttpMethod
- Up and Down have different timings, to achieve differences in moving speed
V0.2.0
- Added a AP webserver, if no WiFi is available to change the SSID and password
- SSID, Password and data are stored directly in the EEPROM
- Webserver added to change the timings, pin asignment and read the current and targetPosition
- Standard data can be loaded
V0.2.1
- switched off second wifi (AP) when connected to network
- still working nearly perfect now for 3 years, except the todos. 4 units running for 6 shades.
- out of position after changing target position several times in a short time, e.g. by the homekit slider.
- not reconnecting to WIFI after changing wifi channel.
- not reconnecting to WIFI after power down in the house, because router takes too long to setup WLAN again.
ISC