Allows 4 modes: manual, recording of coordinates, play, and autoplay mode. Uses internal LED diode attached to pin 13 to indicate mode.

Robotic arm mimics human arm movement with MEMS and e-compass based and transmitted thru Bluetooth.

My project is a pocket sized robot arm you can control it by your smartphone.

Two-wheel auto gear ENGINE is KILLED (off) when the sensor detects a child accelerate the vehicle or a vehicle falls down to avoid accident.