Pololu A4988 Stepper Motor Driver Carrier

The A4988 can handle up to 2A per coil, but you will need to add a heatsink or active cooling if you plan to run it consistently above 1A. Without proper airflow, the driver may trigger its over-temperature shutdown to protect itself.

Yes, the board features integrated voltage regulators that output both 5V and 3.3V, making it compatible with a wide range of microcontrollers like Arduino, Raspberry Pi, or ESP32.

You can adjust the current limit using the small onboard potentiometer. It is best to measure the reference voltage at the wiper of the potentiometer with a multimeter and adjust it until it matches the current limit requirements of your specific motor.

Yes, it supports five different step resolutions: full, half, quarter, eighth, and sixteenth step. This allows for much smoother and quieter motor operation compared to standard full-stepping.

This board includes built-in reverse power protection, which helps prevent damage to the driver if you accidentally connect the power supply leads in reverse.

Yes, the form factor is designed to be breadboard-friendly, and it includes the necessary male header pins to get you started with prototyping immediately.