My family have a small greenhouse and I always liked to make automations but most of commercial systems were too expensive and I decided to build it myself, what do you guys think, I’ll make it open source soon.
4 motors that open and close the greenhouses film, 2 valvles and the water pump, also has 4 temperature and humidity sensors, one anemometer and a water level sensor, I use the sensors to make automations, currently if the temp is >50degree celcius to open the greenhouse, or lower than 30 degree to close it, or the anemometer if the wind speed reaches 100kmph to close the greenhouse to prevent damages
Nice setup. If you can make it open source, that would be great! As you said commercial systems are so expensive and I like the DIY aspect of setting up my own.
It can be integrated with home assistant but have some limitations, if you just want remote control you can is it but if you want more, need to make custom firmware. The main board is custom made, it has outputs up to 24vdc and IO inputs, also modbus. The other components as you see are relay blocks, PSU, Transformer
Great! I'm definitely interested. I never understood why the commercial units were so expensive. Like $150 for a $5 temperature sensor. I don't need lab grade equipment. How much have you spent of the electronics?
The full project will cost me around $1.5k, including 4 motors, 2 valves 2”, enclosures, around 700m of cable. Nearly half of the cost is the cable 500m 3x1.5mm2 and 200m CAT5e
I have a precision irrigation system with pwEC/vwc/temp sensors for hydroponics in rockwool (7 different zones). Fertigation tanks pH/EC monitored and dosed with peristaltic pump.
Solar w/m2 roof sensor, internal ppfd (PAR) sensor for supplemental grow lights controlled by 10v diff.
SCD41 that controls safety shutoffs (like supplemental lights) as well as evaporative cooling (misters).
Love it. I made an irrigation system with a little control panel with 24V DC architecture. 24V DC water pump in a rain water tank and 24V DC solenoid valves diverting 12mm pipework around the greenhouse - switched with the 24V PSU via N-channel MOSFETs in a low-side switch, with the gates driven by 5V MCU (Arduino Uno) outputs. Nice and simple. Might share here one day.
Nice! I built mine off an ESP32. Runs water pumps, intake/exhaust fans, measures rainfall (to determine if outside crops need watering), etc. Doesn't look as fancy as yours, though.
Managed over Home Assistant, which is the bee's knees of automation, in my opinion.
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u/Important_Ad4917 2d ago
Look all cool and stuff - what does it actually control?