During summer nights, the temp is initially quite high. As time passes, the temp starts dropping. Thus, initially the fan or cooler needs to be run at full speed. Also, after a person falls asleep, one has to get up again and again to adjust the speed of the fan or cooler. This project is presented here control the speed of the fan automatically with the room temp variation.
5. Lm 393 Ics
6. Motor and propeller
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