Motor controller with spare IO pins?

Support Finding Parts
1

Can anyone recommend an Arduino-compatible stepper motor controller that has at least seven unused IO pins?

I want to drive a rotary indicator and pair it with a 7-segment numeric display for maximum usability.

Tolerance for hostile environment (rough power, high temperatures, vibration) required.

Motor is very low power unit.

Small size preferred.

Thanks everyone!

2

Hi Ian,

I’d suggest taking a look at the little A4990 motor driver: https://core-electronics.com.au/pololu-a4990-dual-motor-driver-shield-for-arduino.html

As for protecting it in harsh environments, I’d suggest looking into coating your electronics with Conformal coating and placing them inside a sealed enclosure. Vibration will kill pretty much everything eventually, so it’s worth soft mounting the electronics as well by using soft rubber mountings.

Regards,
Oliver
Support | Core Electronics