At the heart of the circuit is the OS25B10 transmissive optical sensor with phototransistor output (OC1 ... After construction and pre-flight test, the module was connected to an Arduino board and ...

This build uses an AM radio built into a small integrated circuit to detect some of those radio waves. An Arduino Nano receives the signal from the TA7642 IC and lights up a series of LEDs as it ...

With small Arduino boards becoming more popular, Olympia Circuits is jumping into the ... to create tones and measure vibrations - One phototransistor to detect infrared and visible light ...