I have been trying to create a redstone system for my "town" on multi-player and was using some guides on creating automatic lighting using redstone, water, and pistons, but it is not working properly and I am looking for some more extensive guides on how to do this.
Ideally, I would like the lights to come on at night and go off during the day. I have used Etho's Light Sensor and followed other peoples modifications to it to make it work. However, they do not seem to work properly. When the piston is supposed to retract, it doesn't.