Solenoids are great for when you need simple, low cost short linear actuation. Solenoids are electromagnetically driven actuators. When voltage is applied to the solenoid coil the electromagnetic force pulls the center plunger in. It is an excellent mechanical solution for all kinds of DIY projects requiring short quick linear actuation. Solenoids are most often found in latching and trigger-like mechanisms.
Project Parts List:
|Device||Sensor Shield Port|
|RobotGeek Pushbutton 1||Digital Pin 2|
|RobotGeek Pushbutton 2||Digital Pin 4|
|RobotGeek Relay||Digital Pin 7|
Arduino Solenoid Code:
PC Control These demos and projects allow the robot to be controlled via a computer.
ArbotiX Commander Control - These demos and projects control the Robot using the ArbotiX Commander, the handheld Arduino based remote control.
Direct Control - These demos and projects control the Robot directly from sensors connected directly to the Robot's control board.
Pose Control - These demos and projects allow you to create and playback a sequence of poses.
Serial Control - These demos and projects control the robot using a serial packet protocol.
Standalone - These demos and projects are deisgned to let your robot function without a computer or additional microcontroller.
Wireless Control - These demos and projects allow you to control the robot wirelessly - usually by replacing the Serial Connection with XBee modules.
Reference - These articles have technical details regarding the control and operation of the robot.
More info here