Modbus-Based BLDC Motor Control

Field-Oriented Control (FOC) implementation for BLDC motors using STM32F401RE with Modbus communication support.

Overview

This project implements FOC motor control for Brushless DC motors on the STM32 Nucleo-F401RE board. It uses an AS5048A magnetic encoder for position feedback, SSD1306 OLED display for visualization, and supports velocity/position control modes.

Hardware

• MCU: STM32F401RE (Nucleo-F401RE)
• Encoder: AS5048A (SPI)
• Display: SSD1306 OLED (I2C)
• Motor: 3-phase BLDC motor

Features

• Field-Oriented Control (FOC)
• PID velocity/position control
• AS5048A encoder support
• OLED display interface
• UART communication
• Modbus support (in development)

Building

Using CMake

mkdir build && cd build
cmake ..
cmake --build .

Using STM32CubeIDE

1. Import project
2. Build (Project → Build Project)
3. Flash to board

Credits

Based on SimpleFOC