I would like to replace normal (mechanical) switches at home with Sonoff Touch ones, which I will be able to manage.
Today I have this:
and by adding the Sonoff Touch I will have that (P1 is the WiFi module, the whole dashed box is the Sonoff Touch):
The concern I am having is that the lamp(s) which are in series with the switch will lower the voltage on the switch. I do not know yet by how much.
Are there practical indication on the voltage range required by a Sonoff Touch to function properly? (the documentation mentions 90~250V AC, I am more looking at some experience based cases)
Circuit schematics thanks to CircuitLab