Hello I need help finding a circuit where a 0-5v pressure sensor controlls a 12v water pump. As the pressure increases on the sensor the out put of the sensor rises from 0v to a maximum of 5v.I need the sensor to control the 12v water pump in a pwm fashion. Also I need to be able to adjust the pumps start up. Also I want this to be a circuit I can solder up. I don't want to program anything with digital ICs. Thanks