Topics created by jeremushka

@jeremushka Indeed, it is a complex way to switch on a lamp, but if you only want to change the switch, I guess it's what you need to do. It would be much easier to insert something at the light bulb, as your neutral is available there. My French is not that good, but I think you can solve your "va et vient" by changing the NO relay in your reference schematic with a NO/NC relay (SPDT switch).

![Thanks for your replies. Actually, the problem is to trigger the pulse of the relay with the function "delay". It is working but sometimes during the "delay" function, the gateway has not received the information of the first pulse yet. So, the second pulse "digital write..." will not work. I will have to press several times. It is a coding optimization i think. For the status i have used a ACS712 sensor to know if the light is on or off. i attached for you the electrical diagram of the "standard" impulse relay on a french house installation which is located in the main board in the garage. Push button are connected. This relay is trigger with 2 quick pulses when you press the push button, then the light will turn on or off. To insert Mysensors project to this original electricall installation i directly connected the mysensors Node with an NO NC relay directly on the same wires than the push button. From the gateway, i trigger the relay with 2 pulses.

@dbemowsk original query was for a sliding gate. Anything else I would say just use 2 pairs of microswitches and if there is any ambiguity, drive direction until a change is noted. Keep it simple.