Parts

What do we need for our UAV?

A plane with two or four motor controlling and without any servos. You know a lot of toy planes like the AirAce once or X-Twins. The second is a new controlling electronic. For the electronic I choose a 5 V version of the Arduino Pro Mini board. To control the motors we need a mosfet and a diode for each side. To measure battery voltage we also need two resistors. The next thing is the power supply. For the arduino we can use a 7805 for 5 V.
Because of the voltage drop or peak it's also be necessary to use two capacitors.

For other electronical parts we can also use the 5 V power supply. This can be used for the wireless serial downlink or a 5 V gps module.

A simple circuit diagram ("Schaltplan.pdf") is attached as PDF file on this page.