I am using a Tx-Rx setup as follows for controlling an RC airplane:
Arduino Uno (ATMega328 + xBee Pro RPSMA at 2.4 GHz, 57600 bps) - runs at 5V
Arduino FIO (ATMega328 + Joysticks + xBee Pro Wired Antenna at 2.4 GHz, 57600 bps) - runs at 3.3V with a LiPo.
3 Servos and a Brushless DC Motor with an ESC - I have an 11.1V LiPo.
Now, my question is - How can i control servo movements using FIO running at 3.3V? (Does it need voltage boost?)
Servos expect their signal to be at 5V. But i have a 3.7V LiPo which powers my Receiver configuration (FIO+xBee Pro).
For the BLDC, i have an 11.1V LiPo which connects to the ESC for speed control. But, the ESC will also need to be programed using the FIO (at 3.3V). As in a real RC Receiver, the ESC distributes power from the battery to the Servos (i guess!), that is why i am unable to understand how to connect the FIO (3.3V), Servos (5V) and the BLDC (11.1V).