mini quad challenge #3DThursday #3DPrinting

RobertCL shares: The mini-quad challenge gate uses a laser diode and a light dependant resistor controlled by an Arduino to detect mini-quads flying through. When a mini-quad is detected it sounds a buzzer and lights up another light in the Neopixel array. download the files on: http://www.thingiverse.com/thing:698512 Every Thursday is...