Triggering Multiple Solenoids With Multiple Buttons

Here is how you can trigger multiple small solenoids with multiple buttons using an Arduino. This example triggers five solenoids with five buttons.

1. solenoids
2. buttons
3. Arduino Uno
4. jumper wires
5. breadboard
6. 12v power supply
7. TIP120 (x5)
8. 4007 power Diodes (x5)
9. 10k ohm resistors (x5)
10. 2.2k resistors (x 5)

the pdf contains the combined wiring diagram.