The X‐BLDC Dual-Channel Motor Driver is a compact, ready-to-use control board that lets you run two brushless DC motors with precise PID closed-loop control. It combines an ESP32 MCU with two EG2133 three-phase inverter stages, supporting 12–24 V power, AS5600 magnetic encoders (or encoderless mode), and on-board current sensing. Out of the box, you get independent PWM outputs for each motor phase, making it simple to integrate dual-motor setups in robotics, CNC, and DIY automation projects. Why did you make it?

I designed the X‐BLDC board because I needed a versatile, open-hardware solution for simultaneous control of two BLDC motors in my own robotics and automation prototypes. Off-the-shelf motor drivers often lack easy customization, closed-loop tuning, and dual-channel support in a single compact form. By building everything around the ESP32 (for built-in Wi-Fi/Bluetooth and powerful real-time control) and EG2133 inverter ICs (for efficient three-phase switching), I created a platform that lets makers, educators, and small-scale OEMs get dual-motor projects up and running quickly—without having to piece together multiple separate modules or redesign PCB logic for every new build.

True Dual-Channel Closed-Loop Architecture: Each channel has its own 3-phase bridge, independent current sensing, and PID firmware, allowing two motors to run simultaneously with individual speed/torque profiles.

ESP32 Core with Wireless Connectivity: On-board dual-core 240 MHz processor, Wi-Fi, and Bluetooth support remote tuning, over-the-air updates, and easy integration with ROS, MQTT, or custom dashboards.

AS5600 Encoder Compatibility & Encoderless FOC: Plug in two AS5600 magnetic encoders for precise angle feedback, or run open-loop control using customizable six-step or sine-wave algorithms.

Fully Open-Source & Modular: Includes complete Arduino/PlatformIO code, hardware schematics. Community-driven documentation walks you through assembly, wiring, and PID parameter tuning.

High-Quality Power Stage: Uses automotive-grade EG2133 gate drivers and low-RDS(on) MOSFETs with proper bootstrap diodes and decoupling caps, ensuring efficient switching, minimal heat, and reliable operation up to 24 V.

Plug-and-Play Simplicity: All motor-phase pins are clearly labeled, with onboard voltage regulation (5 V logic, 3.3 V ESP32), current-sense resistors, and LEDs for status. Just wire two 3-phase motors, encoders (optional), and a 12–24 V supply—then upload the example firmware and start tuning.

Community & Support: Backed by detailed guides, example sketches, and active forums. Whether you’re building a dual-motor robot, 3D-printing setup, or prototype machine, X-BLDC gives you a rock-solid, hackable foundation to accelerate your project.