Shelly 2.5 as a Door Closer

[bencharlesrhys]

After following this tutorial: https://homekitnews.com/2021/05/16/smart-home-door-closer-a-guide/ I wanted to run HAA so I wasn't dependant on HomeKit automations for the Door Reset function which can be problematic if the network is down or hubs aren't responding. I also wanted to use the Garage Door accessory type so Siri picked up "hey Siri, close bedroom door" correctly.

This creates 4 accessories:

1. Garage Door
2. Timer
3. Door Reset (to rotate the closer back the other way)
4. Door Close (optional manual control switch for calibration)

The JSON functions like this:

1. Close (1) for 14 seconds by turning the motor, and turn on (2) a dummy timer switch for 15 seconds runs before turning off.
2. After the 15 seconds elapses, (2) sends command to (3) to turn turn on and send the motor the other direction for 14 seconds (to reset the close function)
3. I use a HomeKit automation to open the door (1) when a separate contact sensor on the door is opened (i.e. when you manually open the door again)
4. The door (1) open command does nothing.
5. Door is ready in open position for Siri to close again :)

It took some time for me to work this out so hoping others will be able to make use of it :)

JSON including 4th Accessory (to manually calibrate door close)
{"c":{"ct":12,"o":0,"l":0,"n":"Bedroom-Door","b":[{"g":2,"t":1}]},"a":[{"0":{"r":[{"g":4,"v":1,"i":14}],"m":[[2,1]]},"1":{"r":[]},"t":40,"vs":1,"s":0,"d":1,"c":14},{"0":{"m":[[3,1]]},"1":{},"i":15,"s":0},{"0":{"r":[{"g":15}]},"1":{"r":[{"g":15,"v":1}]},"b":[{"g":5,"p":0,"t":0}],"i":14,"s":0},{"0":{"r":[{"g":4}]},"1":{"r":[{"g":4,"v":1}]},"b":[{"g":13,"p":0,"t":0}]}]}

JSON with only 3 accessories (no calibration for door close):
{"c":{"ct":12,"o":0,"l":0,"n":"Bedroom-Door","b":[{"g":2,"t":1}]},"a":[{"0":{"r":[{"g":4,"v":1,"i":14}],"m":[[2,1]]},"1":{"r":[]},"t":40,"vs":1,"s":0,"d":1,"c":14},{"0":{"m":[[3,1]]},"1":{},"i":15,"s":0},{"0":{"r":[{"g":15}]},"1":{"r":[{"g":15,"v":1}]},"b":[{"g":5,"p":0,"t":0}],"i":14,"s":0}]}

I tried to flash the Shelly 2.5 OTA with HAA using MGOS to Tasmota, but I couldn't get it to join my wifi network. Decided to hard flash HAA through the serial ports on the back similar to here: https://michlstechblog.info/blog/tasmota-flashing-and-setup-a-shelly-2-5/. Dupont cables don't fit, so I soldered some cutoffs from resistors to the ends of the Dupont cables. Needed to short GPIO0 to GND when powering up to enter flash mode of the Shelly 2.5 and flashed using NodeMCU PyFlasher