Taking a look at a touch switch circuit I have designed. This circuit uses an Opamp for the touch sensor which operates a N channel MOSFET and triggers a 555 timer in monostable configuration. I walk you through the schematic of the circuit and discuss problems i encountered in the initial design.
Part 2: https://www.youtube.com/watch?v=NB3ycKquvTs
Part 3: https://www.youtube.com/watch?v=IEqtF_0HjJ8
