I am looking for someone to design a circuit for me that will consist of the following.
Thermistor circuit to detect moving air for one minute then trigger a Cyclic timer with adjustable ON times from 1-4 seconds and OFF times from 15 - 45 minutes. Repeat continiously as long as thermistor is still sensing movement or until a fault switch has signled to stop. This circuit will drive a motor of 12vdc 3-5 amp. Circuit should be 12vdc. I will require a working prototype from all who wish to submit a bid. I can give more specific details about circuit upon request.