Quantity   Component name
1 × Raspberry Pi Model A
1 × Raspberry Pi Camera
1 × DS18S20 Sensors / Temperature, Thermal
1 × 12V supply and LM2596S board to provide 5V to the Pi Power Management ICs / Switching Regulators and Controllers
1 × BC547, 5V relay, 47K resistor Discrete Semiconductors / Transistors, MOSFETs, FETs, IGBTs
1 × Plastic tubing and modified drip irrigation emitters have a look at the project logs for more details
1 × Water pump from eBay Diaphragm pump to provide some pressure http://www.ebay.com/itm/281103005575