short it out then when the micro switches it on bingo. by short it out i mean at the circuit board connection not the switch end....if that kind of makes senseHi,
Have a little humidifier, the 12v type thats designed to plug into a car socket.
It works well, but the on /off switch is an inbuilt capacitive sensor.
We are using a micro to turn the power on, but need some method to 'press' the sensor electronically ?
Any suggestions please ...
View attachment 106918
Thanks, but think you mean the humidifiers circuit board, but I do not want to try and open as it will likely break it, plus the switch needs a single press / pulse, not a press and hold as when tied down/up.short it out then when the micro switches it on bingo. by short it out i mean at the circuit board connection not the switch end....if that kind of makes sense
Thanks, will give those methods a try.If it works by capacity loading to ground (Rather than capacity between two or more plates under the sensitive area.) then sticking some foil over it connected by a short thin wire to a normally open contact of a small relay with the other side of the contacts connected to something with a reasonable capacitance to ground may work. A cmos switch such as a cd4066 may work in place of a relay. You would probably need to collect the pin connected to the foil to the ground pin via a high value resistor (10M) so it was not left floating.