The touch switch here is a momentary switch which uses N-channel MOSFETs. When you touch +9V and gate, the LEDs turn on. The MOSFET requires up to 3 v...
To make the switches, strip the wires and coat it with lead free solder. Solder the wires to the gate of each MOSFET. Hot glue the wires to the case. ...
To light paint, set the shutter speed to long exposure and use a timer. Mount your camera onto a tripod. The photos below were taken under slow shutte...
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