16-Channel Motor and Servo Control Board for Robot Arm

A robot with both driven wheels and articulated joints - a chassis with an arm mounted on it, for instance - needs both motor and servo control at once, and this board covers both from a single Arduino Uno shield rather than stacking two separate driver boards. The L293D H-bridge drives two DC motors across a wide 4.5V to 36V range, while a separate 16-channel servo section handles arm joints, grippers or pan-tilt mounts at 5V to 18V.

Having both driver types on one board simplifies wiring meaningfully on a combined robot - motor power and servo power routed through one shield's terminals rather than coordinating two independent boards' grounds and power rails by hand.

Standard board for combined mobile-and-articulated robot builds: a wheeled chassis with a mounted robotic arm, a smart car with a pan-tilt camera mount, or any project needing both drive motors and several servos controlled together.