pin

Simple Automatic Watering System. What you'll need: 1 - Arduino UNO rev 3 1 - USB cable 1 - 12v 1000mA DC power supply 1 - 1N4001 diode 1 - PN2222A transistor 1 - 220 ohm resistor 1 - peristaltic pump 1 - tubing that fits your peristaltic pump (not pictured) 2 -...