Monday, October 8, 2012

Arduino Hydroponics

For a long time I was looking for an excuse to get into hydroponics. And time too.
I had some Arduinos and some PICs lying around the garage, but they were allocated to some other projects and I didn't want to touch them.
So when I got a Arduino Nano last month I decided it was time to spend a Saturday working on my hydroponics prototype.

Strawberrys and lettuces.

So I hacked some PVC pipes, a small fountain water pump, a 433Mhz remote controller 2 channels with a receiver equipped with 2 220V capable relays.


The fertilizer I use in the water is also homemade, humus based, produced by earth worms. They eat leftovers from vegetables, fruits and... well... horse shit.
I programmed the Arduino to water more during the day and less during the night. Next step would be incorporate some temperature sensors, light sensors and humidity. And solar power it all. Pretty permaculturish.


  1. This is great! I'm planning on doing something similar to this only using vertical planting as I'm in the middle of the city.

    Any plans to release the input/output and the code?

  2. Would like to see a more in-depth cover of what you did ,and how.. Great though.

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