Wiring the IR Receiver

[Al Skierkiewicz]

Originally Posted by Rapt0r9

Also, I've noticed that there is a 5 Volt Regulator on the board, so this leads me to further believe that 5 Volts is an acceptable supply voltage for the sensor.

A 78XX regulator reuires a minimum of 2 volts across the device for operation. If you feed the regulator with 5 volts, the output will be 2 volts below that which is not enough for the devices to reliably operate and my be so low as to trigger the power function of the controller. The 7 volt minimum satisfies the 5 volt regulator and it is designed to work up to a fifteen volt input. So the specs have more to do with the 7805 then with the operation of the board itself. Although you could run it off a PWM the power there is coming from the 7.2 volts backup battery. I would go as recommended, attach to a breaker and the main power, +12.