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Ok, another fairly basic project I want to take on. I want to be able to cut power to a circuit if the water temperature gets too low in the fish tank. I have an automatic fish feeder on an outdoor system. There is a timer powering the feeder so it isn't really as easy as buying a thermostat...

I thought perhaps that the simple timer thread was already long enough and I should leave it alone and start a new thread for power supplies. After some frustration at needing to plug in mains power to be controlled by a relay and a separate wall wart to provide the DC power needed for my timer...

I just got my first picaxe 08M chip with a USB cable and the programing project board. Didn't come with much of anything else. I managed to program it to the very simple timer sequence I want. Now I just need to sort out what other parts I need to finish making the timer circuit I want. I...