Hydroponics system with raspberry pi 2
tsl2561 light sensor ( going to be used to turn on/off lights on value later on )
2x DS18B20 one in the tank one in the piping system mid-way
bmp180 i2c barometric sensor+temp sensor
sainsmart 4channel relay
the light sensor are in the external box ( just a 2gang outdoor weatherproof cover/box$8 home depot
Pi is powered by a motorolla phone charger I cracked open soldered wires to instead of prongs and soldered header wires instead of the USB mini B head that was on it.
I plan on having the last relay switch turn on and off my hanging lights above my deck after I go get some more wire to run up the tree to hardwire the lights in.
the hydroponics deck/system is about 7ft from my house deck ( 16ft x 24ft )
I have a pwm controller that does AC 60hz coming from canada so in the next week or two I might try to hook up the deck lights with that so I can dim them. That is the end goal anyways.
I have a bug light, a water pump and an airator on the sainsmart relay as of right now. The deck lights will be on in a week or so.
I plan on putting a bunch of packets of silica in the box to keep moisture out. I had to add a fan as the pi 2 was getting really hot. It is a 5v fan from a video card. everything is mounted with these
I recommend buying these for anyone who uses a pi as they can help you to mount it anywhere.