I recently bought a few Shelly Dimmer 2 and dimmable led lamps to replace legacy mechanical relays and standard bulbs. The Shellies are connected to the original momentary buttons.
When I turn on or off the lights from the web interface of the Shellies, the light actually turns on or off immediately. When I use the momentary button, however, it takes approx 1 second before the module detects the command and the light changes state. I have reduced the debounce time to 60 (minimum) and the fade time is 0, but the delay is the same.
The wiring diagram is attached to this message, the switch is a standard NO mechanical switch.
Note that I'm not using the Shelly cloud but the MQTT interface instead.
Please help - thank you.