The Pololu SMC02B guide explains wiring, serial configuration, motor control commands and troubleshooting for the Micro Dual Serial Motor Controller.
This user guide provides all the information needed to integrate the Pololu Micro Dual Serial Motor Controller (model SMC02B) into a robot or small mechanism. It covers safety warnings, pin functions, power connections, serial interface settings, configuration of motor numbers and modes, and example code for a BASIC Stamp II controller.
The document also details how to reset the controller, troubleshoot common issues, and outlines the hardware specifications such as voltage ranges, current limits, and PCB dimensions. It is intended for hobbyists and engineers building low‑voltage DC motor driven projects.
| Motor supply voltage | 1.8‑9.0 V |
|---|---|
| Logic supply voltage | 2.5‑5.5 V |
| Maximum motor current (dual‑motor mode) | up to 1 A |
| Maximum motor current (single‑motor mode) | up to 2 A |
| Serial baud‑rate range | 1200‑19200 baud |
| PCB size | 0.90" × 0.45" |
By default the controller is set to two‑motor mode controlling motor numbers 2 and 3.