HIS ARMS SPIN – Sound Triggered Robot
The robot is turning its arms when someone speaks to it.
It mainly consists of a microphone and a microphone.
when the microphone detects the sound, it sends the signal to the Arduino. When the sound is loud enough, the DC gear motor will be triggered.
The microphone is connected to an OP amplifier to enlarge the signal, then send the output to the arduino.
Arduino Sketch: sound_triggered_robot