A4988 PCB

What do you think about this A4988 PCB Mini Circuit? it connects RESET with SLEEP, GND to GND. Also, it has some terminals for 1A, 1B, 2A, 2B, DIR, STEP, and VDD

Circuit

PCB

FINALLY IT WORKED!! I MAKE A 2 A4988 CIRCUIT

There is a good diagram of the connections on the Pololu A4988 web page.

Please make your image visible. See this Simple Image Guide

...R
Stepper Motor Basics
Simple Stepper Code

I wasn’t aware the A4988 came in a through-hole version. Unless you just made a breakout for a breakout?

PCB designs are write-only. Reading them is pretty much impossible. (As opposed to reverse-engineering an example where you have the components to look at too.)

If you want feedback on your circuit, start by showing the schematic.

The circuit is posted!!

A4988 package:

A4988.png

A4988.png

Considering the low price of an A4988 module I can't see the point of a DIY version.
The OP's circuit has no current sensing resistors and they are an essential part of a stepper motor driver.

Just had a thought ... maybe the OP's PCB is intended to take a Pololu A4988 module and make it easier to connect to?

...R

Robin2:
Considering the low price of an A4988 module I can't see the point of a DIY version.
The OP's circuit has no current sensing resistors and they are an essential part of a stepper motor driver.

Just had a thought ... maybe the OP's PCB is intended to take a Pololu A4988 module and make it easier to connect to?

...R

Yup It`s just made for simplifying the connections

Thanks a lot

Are the PCB traces for motor power capable of carrying the current?

…R

Robin2:
Are the PCB traces for motor power capable of carrying the current?

...R

I forgot it, but the motor runs at 24v, i think the PCB traces are power capable of carrying 24v

The motor current destroys PCB traces, not the voltage.

Robin2:
Are the PCB traces for motor power capable of carrying the current?

...R

Motor current is 1.5A

Francisco-Colli:
Motor current is 1.5A

Can your PCB traces comfortably carry that much current?

...R

Robin2:
Can your PCB traces comfortably carry that much current?

...R

I don`t know, can i test it or something?

Francisco-Colli:
I don`t know, can i test it or something?

What does Google say about the current carrying capability of PCB tracks?

What would you do if you discovered that the tracks are not able to carry the current?

...R

Robin2:
What does Google say about the current carrying capability of PCB tracks?

What would you do if you discovered that the tracks are not able to carry the current?

...R

I spent some time reading and all is ok! thanks

Robin2:
What does Google say about the current carrying capability of PCB tracks?

What would you do if you discovered that the tracks are not able to carry the current?

...R

I spent some time reading and i found that it`s all ok, thanks

Robin2:
What does Google say about the current carrying capability of PCB tracks?

What would you do if you discovered that the tracks are not able to carry the current?

...R

I spent some time reading, and i solved ir, thanks