Hamster's heating pad
The winter is on it way. I'm having a hamster, a winter white, but the last winter his caught cold and it cost very much for him to cure him. I don't want my hamster to be sicked any more, so I made a heating pad for him. I used this instructable http://www.instructables.com/id/DIY-heated-clothing/
and I found it is very well. I use a two - meter 26 - gauge wire, and it only result in a 0.15 ohm resistance. With an 1.5 v voltage, It work well and i need a 10a fuse to protect this circuits:) But last week it overheated and my hamster was burned, quite bad. I'm wondering if there is a solution to this. Would you mind giving me a circuit in which:
- there is a thermistor to sense the temperature.
- If the temperature is to high (30 celcius degrees ), it gives a relay some voltage and the relay breaks the heater circuits.
- And it component should be popular, cause I'm a kid and don't have many time go round n' round to find them.
Me and my hamster will very appreciate your kindness. Thanks all.