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2 or more Motor Driver L298 Modules?


#1

Is it possible to connect 2 or more Motor Driver L298 Modules to one spider fez module?


#2

Yes. Each one needs one P type socket


#3

And if I want need to control 3-4 Motor Driver Modules and I have only two P type sockets?


#4

Currently there is no option. That would a module with its own PWM signals.


#5

But it is possible to build my own Module that can handle more Motors? How difficult would this be?


#6

It is very easy if you know electronics, but sine you asked, I would assume it will not be easy fro you.

The module will have a little I2C chip that has PWM pins that in turn used to control motors.

Do you need to control speed or just on and off?


#7

@ Gus

Something I’m unclear on…the Gadgeteer socket spec (http://wiki.tinyclr.com/index.php?title=Gadgeteer_Sockets) says pins 7, 8, and 9 on a P socket are PWM. Since there are two PWM sockets on, for example, the FEZ Spider, does that mean you can have up to 6 separate PWM signals, if the module is designed to use all 3 pins in a given socket?

Or are there only 3 total PWM outputs which are shared across the 2 P sockets on the Spider?

The Spider catalog page says 6 PWM, which is what I thought, but I wanted to be sure.


#8

@ devhammer

These are different pins PWM0-PWM5

You can check it out in the schematics:

http://www.ghielectronics.com/downloads/Gadgeteer/Mainboard/FEZ%20Spider.pdf


#9

Cool…thanks for the info.

Of course, I realized that for what I want to do, the PWM pins alone are insufficient…I have some more learning to do before I can move forward with my idea. :slight_smile: