A4988

Stepper motor control.

Tutorial / documentation

Modules & interfaces

First tests with A4988

1. Identify the exact A4988 variant, package and manufacturer documentation.
2. Identify power, ground and signal pins in the documentation. Assemble the circuit with power disconnected.
3. Follow the manufacturer’s evaluation circuit. Use a current-limited low-voltage supply and the recommended logic levels.
4. Mesurez les signaux d’entrée et de sortie. Comparez leur comportement à la fonction : commande d’un moteur pas à pas.