COMPACT ROBOTIC PLATFORM With Motor Driver On Chassis PCB

An N20 motor is a compact DC geared motor widely used in robotics and DIY applications.

- ASHWINI KUMAR SINHA

By combining a small DC motor with an integrated gearbox, it delivers high torque in a compact form factor. Motor drivers are essential components in robotic systems, enabling precise control of motor speed and direction. Integrating motor-driver circuitry and sensor interfaces directly onto the robot chassis simplifies construction, reduces wiring complexity, and improves overall reliability.

The proposed system integrates the motor-driver circuitry directly into the robot chassis PCB, creating a compact, self-contained robotic platform. It enables precise control of the robot’s direction, speed, and individual wheel movement through a single FPC (flexible printed circuit) cable, simplifying assembly and reducing the number of interconnections.

The system supports various control methods, including WiFi and other communication interfaces. Conventional robot designs often require separate connections for motor drivers, batteries, displays, sensors, and microcontrollers, leading to complex wiring and longer assembly times.

To overcome these limitations, a compact robot PCB has been developed that serves as both the main circuit board and the structural chassis. N20 motors can be mounted directly onto the PCB alongside the motor driver, battery interface, power management circuitry, and display connections. The board supports surface-mount assembly and includes provisions for additional servo motors, further reducing wiring requirements.