L293D Motor Driver Board

The L293D Motor Driver Board is an Arduino-compatible shield built around dual L293D H-Bridge driver ICs, allowing a single Arduino Uno to control multiple motors without external transistor circuitry. Each L293D chip contains two H-Bridge channels, so the board as a whole provides four independently controllable motor outputs.

The board separates logic power from motor power: onboard logic runs at 4.5V to 5.5V (matching Arduino’s own 5V logic level), while the motor-side input accepts 7V to 12V DC. This split protects the Arduino’s logic pins from the higher current draw of the motors and lets you power the motors from a separate supply if needed.

With 4 motor connectors and 2 dedicated servo headers (on pins 9 and 10), the shield can drive up to 4 DC motors, or 2 four-wire stepper motors, plus 2 servos simultaneously — making it a practical control layer for wheeled robots, rovers, and other multi-actuator builds.

Features:

1. Dual L293D H-Bridge driver ICs onboard
2. Drives up to 4 DC motors or 2 four-wire stepper motors
3. 2 dedicated servo connectors (pins 9 & 10)
4. 0.6A rated current per H-Bridge channel
5. Separate logic and motor power inputs for isolation
6. Logic control voltage: 4.5V–5.5V
7. Motor input voltage range: 7V–12V DC
8. Arduino Uno shield form factor for direct stacking