https://www.pololu.com/category/212/tic-stepper-motor-controllers Pololu - Tic Stepper Motor Controllers The Tic offers simple control of bipolar stepper motors directly from a variety of interfaces, including USB, TTL serial, I²C, hobby radio control (RC), analog voltage (potentiometer), and quadrature encoder signals. www.pololu.com 링크 먼저 던지고 시작. 워낙 다양한 인터페이스-연결(USB, TTL serial, I2C, RC 등)을 제공..