Solar Watering System
This is a basic watering system I put together to keep my giant atlantic pumpkin hydrated while I was working away. Only cost a few dollars and about 20 minutes to put it together. The watering lines have since been added to to water my other garden beds.
This is an overview of what I have done rather than a step by step of how to make it, I wanted to make sure it worked before I made an instructional incase it didn't work.
How It Is Put It Together
Materials:
-small solar panel
-old car battery
-wire and a diode
-plastic container
-cheap electronic timer module from online (only a few dollars)
-some sort of sealant for the plastic container
-silicone or sikaflex will do
-assorted watering system pipe fittings depending on how your system is set up
Method:
There is no reason why you couldn't use multiple timers and have more solenoids to control other sectors independently.