shelly1L WIFI Relay

For distributed devices, it may be beneficial to go with radio controlled devices. To switch a thermostate, I decided for a shelly1L relay that is integrated via WIFI:

1. Check, there is no jumper for operation at 240 V
2. Connect power wires L, N
3. Power shelly1L on
4. Connect computer via WLAN to SSID: shelly1-xyz
5. Enter URL in browser: 192.168.33.1 and select Internet & Security > WIFI - MODE - CLIENT
   Enter name and password of your WLAN
   Select Set static IP address
   and set some address like 192.168.178.101
   The Gateway is something like: 192.168.178.1
6. Reconnect your computer to your WLAN and look for the new IP address in your router. You might want to set a static IP.
7. Enter this new IP in your browser and continue configuration.
   If you decided for password protection, you need to give the login in the URL like http://user:password@192.169.xxx.xxx.
8. If you click the virtual power switch, you should hear the click.
9. configure Settings
   POWER ON DEFAULT MODE: OFF
   Button Type: Toggle Switch
10. configure Actions
    OUTPUT SWITCHED ON URL: Enabled,
    http://192.168.xxx.xxx/relay/0?turn=on
    OUTPUT SWITCHED OFF URL: Enabled,
    http://192.168.xxx.xxx/relay/0?turn=off
    

Python interface, simple

import  time
import urllib.request

url = {}
url["on"]  = "http://192.168.xxx.xxx/relay/0?turn=on"
url["off"] = "http://192.168.xxx.xxx/relay/0?turn=off"

next_call = time.time()
#toggle relay 5 times
for i in range(0,10):
    if i % 2 ==1:
        with urllib.request.urlopen(url["off"]) as response:
            html = response.read()
    else:
        with urllib.request.urlopen(url["on"]) as response:
            html = response.read()

    print(i, html)

    #wait 2 seconds to proceed
    next_call = next_call+2;
    time.sleep(next_call - time.time())

Python interface