Controlling two DC motors and one servo

[gregoff]

Hi all,

Starting with my first hardware project with my RPi (only doing software stuff until now).

I want to connect two DC motors as well as a servo to a RPi.

I've been reading a guide at https://learn.adafruit.com/adafruit-ras ... a-dc-motor and understand that I can use a L293D to control the DC motors in both directions and with variable speed as well. So far so good. But, I want to be able to control a servo as well. I understand there's only one PWM, but it can maybe be solved with ServoBlaster? Suggestions?

Pre-conditions: I want to drive a RC boat that will weigh a couple of kg's, so I will need the "biggest" possible DC-motors this thing can handle. The servo might the RPi be able to handle directly from the board using servoblaster?

All input is appreciated!

[joan]

You'll need to check that any chip or motor driver board you select can handle the voltages/amperages of your chosen DC motors. Typically solutions based on L293D, L298N, L9110S, will only handle a few amps.

Servoblaster, piblaster, RPIO.GPIO, and my own pigpio, amongst others, will let you drive multiple servos from C or Python.