Chinese motor driver help

Other Hardware General Electronics
1

Hi,

I got this motor driver out of a chinese kit and I can't get it to work.

IMG_20220823_104451
IMG_20220823_1044511920×1080 230 KB

IMG_20220823_104430
IMG_20220823_1044301920×1080 158 KB

IMG_20220823_104410
IMG_20220823_1044101920×1080 144 KB

U2 is a mx1508s ic. U1 has nothing written on it. The yellow connectors are 3 pin inputs labeled ground, voltage and pwm. The red connector is for powering the module/motors and the white connectors are for motor output. I tried sending different voltages to the pwm pins but nothing happens.

Can anyone help me figure out what does U1 do and how to control this motor driver?

Thanks!
-George

2

You can just send voltages and hope - it’s easy to destroy .
Get the data sheets for the chips and trace the connections .
Might be something on the manufacturers web site too

Also see how to work it , software wise

3

From the labelling you might guess that the PWM pin expects to see a PWM signal rather than a voltage!! Try this link:

Google is your friend.

4

Hi, @George1337
Welcome to the forum.

What kit did you get it from?

Can you post a link to where you purchased it?

What else came in the kit?

Thanks.. Tom... :smiley: :+1: :coffee: :australia:

5

This is a similar kit:

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image1533×1080 96.1 KB

image
image1454×1080 83.6 KB

6

Hi,
Does it come with a manual to show you how t o connect it all up?

Thanks.. Tom... :smiley: :+1: :coffee: :australia:

7

Unfortunately no...

8

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