40 Khz Ultrasonic Transducer PairThis ultrasonic transmitter and receiver pair can be used to make object sensors, distance sensors and motion sensors. Features:• Can be used to build distance measuring sensor• Frequency: 40kHz• Transmitter and ..
Sound Sensor Module ArduinoThe Sound Sensor Module is a thin board that combines a microphone and processor. The sensor provides a digital output when the measured sound increases beyond a set threshold. This threshold level can be adjusted using an ..