MechaRa_v1 - The Ultimate All-in-One CNC & Robotics Controller

Are you tired of the "shield sandwich"? Juggling an Arduino, a CNC shield, and separate power supplies is messy, unreliable, and prone to errors. The MechaRa_v1 is a complete, single-board solution, designed from the ground up to be the powerful, protected, and reliable heart of your next machine.

This board integrates a complete Arduino-compatible brain with two powerful motor drivers, an advanced power management system, and professional-grade electrical isolation, giving you a robust foundation for your most demanding projects.

Key Features:

Arduino at the Core: Based on the powerful ATmega328P microcontroller, the MechaRa_v1 is fully compatible with the Arduino IDE. It's ready to run the industry-standard GRBL firmware for CNC control or any custom Arduino code you can imagine.

Integrated Dual Motor Drivers: Forget clumsy external modules. The MechaRa_v1 features two on-board TB6612FNG motor drivers, capable of precisely controlling 2 stepper motors (for a CNC or plotter) or 4 DC motors (for a 4WD robot).

Advanced Power Management: Designed for true portability.

LiPo Ready: Power the entire board from a single 3.7V LiPo battery.

USB-C Charging: An integrated TP4056 circuit with a full DW01A protection suite safely charges your battery via a modern USB-C port.

Stable Logic Power: An on-board MT3608 boost converter provides a rock-solid 5V for all logic, while a separate 3.3V regulator is available to power modern sensors.

Professional Electrical Isolation: This is what sets the MechaRa_v1 apart. All control signals between the microcontroller and the motor drivers are passed through opto-isolators, creating a full galvanic isolation barrier. This protects your sensitive microcontroller from the severe electrical noise and voltage spikes generated by motors, eliminating random crashes and ensuring maximum reliability—a feature normally reserved for expensive industrial controllers.

Dual Power Architecture: Power your logic and motors separately for clean, stable performance. A dedicated DC barrel jack allows you to connect a high-voltage power supply (9V-24V) to drive your motors at their full potential.

Maximum Expandability: Every unused I/O pin from the microcontroller is broken out to standard 2.54mm headers, with convenient access to power and ground rails, making it easy to add limit switches, servos, sensors, or LCD screens.

Ideal Applications:

DIY CNC Plotters & Drawing Machines

Laser Engravers / Cutters

Robotics Platforms (4WD Rovers, robotic arms)

Any automated system requiring precise and reliable motor control.