Controlling multiple servos with python and hardware needed(RPi 3)

Question

I'm kind of new to the Raspberry Pi world and I've been researching for tutorials and how to's all around the web for software and hardware regarding a small project (RC car/robot).

What I've gathered so far is the type of motors and model I need, Python code (I think), basic wiring knowledge but I need to know a couple of things like:

• First of all, I read about using servoblaster to control multiple servos directly from the Pi itself, and;
• For the external power source, I read that powering the board from a power bank (6 V) will require a UBEC 5 V 3 A.

I'm trying to make a list with what to buy - can someone verify/refer me to any additional information?

Answer 1

You can use servoblaster to send servo pulses. There are alternatives like RPIO.GPIO (not RPi.GPIO) and my pigpio which are equally good.

A UBEC is a reasonable choice if you want to derive 5V from a battery pack. Typically a UBEC will convert a wide range of voltages (say 7V-26V) to 5V. If your battery pack is 6V check that it will be enough to work with the UBEC you choose.