Need help for quadcopter flight controller project

Discussion in 'The Projects Forum' started by abraar_sameer, Nov 19, 2017.

  1. abraar_sameer

    Thread Starter New Member

    May 29, 2017
    I'm working on a micro quadcopter project which uses coreless motors for flying. I am designing the flight controller myself. Its brain will be an STM32F103C8T6 microcontroller. Now I have some questions:

    1. The battery is a 1S 3.7v Li-po. At full charge it has a voltage of 4.2v, which needs to be regulated down to the 2.0-3.6 volt range of the microcontroller. Can I use a Zener diode for this purpose?

    2. I want to use an HC-05 for bluetooth communication. It has a working voltage of 3.3 v but it is integrated with a voltage regulator which take inputs between 3.6-6 volts. How should I solve this problem?

    3. What sort of MOSFET shall I use? The motors are brushed.