I am working on an automated hydroponics system. The main goal of this project is to build a cheapest automated with least power consumption hydroponics.
Things want to achieve:
Have 4 12v with <1 amp devices like water pump, air pump, soloide valve and one reserved. At any given point only one device will be in use. (Maybe one by one with some delay) multiple devices will never run at the same time.
For example: In 24hrs each device will be powered (let’s say) for 2hrs.
Things I have:
4 channel relay
12v 1 amp power supply
5v power supply
4 12v <1 amp devices( as mentioned above)
Can I connect all above using a single 12v power supply? Is is good and reliable solution? If both yes then, can anyone share a circuit diagram. If no, then please suggest some other solution.
I am ready to buy any components buy the output of project must be cheap, reliable with least power consumption.