Sorry - this is probably a basic question for people who know what they're doing...
I built a metal detector (pcb with components) which works. It has a piezo buzzer only. I'd like to be able to add a headphone jack which only works when headphones are plugged in - so if there are no headphones plugged in, the buzzer still works. The PCB has 2 pads for the buzzer. I have a stereo 3.5mm jack. Can this be done without getting overly complicated? Any tips or assistance is greatly appreciated.
I built a metal detector (pcb with components) which works. It has a piezo buzzer only. I'd like to be able to add a headphone jack which only works when headphones are plugged in - so if there are no headphones plugged in, the buzzer still works. The PCB has 2 pads for the buzzer. I have a stereo 3.5mm jack. Can this be done without getting overly complicated? Any tips or assistance is greatly appreciated.