M5Stack RollerCAN Unit with BLDC Motor

With the M5Stack RollerCAN Unit, you get a state-of-the-art motion control module with a brushless direct current motor (BLDC) directly into your project. The compact unit is based on the powerful STM32G431CBU6 microcontroller and is ideal for demanding applications such as robotics, automation, or visual demonstrations. Thanks to CAN and I2C communication, you can flexibly integrate it into your existing environment. The integrated FOC closed-loop controller ensures precise control of current, speed, and position. Additionally, a magnetic encoder is built in, providing exact feedback. The smart design with LEGO-compatible mounting holes and M3 screw fixtures makes installation easier. An OLED display on the back shows the status in real-time, and through slip-ring technology, the data connection remains even with 360° rotations. The RGB LED and the function button offer simple human-machine interaction. In short, this module is not only technically strong but also ingeniously designed.

Features:

• Integrated FOC closed-loop drive: Ensures precise control of current, speed, and position.
• Powerful BLDC motor: The installed 3504 200KV motor delivers high speeds and powerful torque.
• Intelligent feedback: The magnetic encoder ensures accurate position feedback.
• 360° rotatability with slip ring: Allows the transmission of data and power during full rotation.
• Integrated OLED display: Shows the operational status directly on the module.
• RGB status indicator: Color feedback for easy operation and error diagnostics.
• Open-source hardware and software: Makes individual further development and customization easier.

Application examples:

• Joint control in robotic arms
• Automated manufacturing systems
• Mechanical demonstrators for presentations
• Sensor-controlled motion platforms
• Projects with 360° rotation requirement

Documentation: 

• Quick Start Guide
• Official M5Stack Forum

Technical specifications:

• Manufacturer: M5Stack
• Manufacturer SKU: U188
• Microcontroller (MCU): STM32G431CBU6 based on Cortex-M4, with 128KB Flash memory, 32KB SRAM, and a clock frequency of 170MHz
• Motor type: D3504 brushless direct current motor (BLDC) with 200KV, diameter: 41 mm
• Driver chip: DRV8311HRRWR
• Angle sensor: TLI5012BE1000
• Communication interfaces:
• 2x CAN via XT30 interface (2+2 PW-M configuration)
• 2x I2C (address: 0x64)
• Display: 0.66-inch OLED display with a resolution of 64 x 48 pixels, SPI communication
• RGB LEDs: 2x WS2812-2020
• Motor power supply:
• Via CAN (XT30 interface) with 6–16V
• Via Grove port with 5V direct current
• Via slip ring (Grove port) with 5V direct current
• Load specifications:
  • 50g load: Motor speed 2100 RPM, current consumption 225 mA at 16V
  • 200g load: Motor speed 1400 RPM, current consumption 601 mA at 16V
  • 500g (maximum load): Motor speed 560 RPM, current consumption 918 mA at 16V
• No-load operation: Current consumption 78 mA at 16V
• Idle current consumption:
  • Via Grove port (5V) approx. 70 mA
  • Via CAN (XT30) at 16V approx. 32 mA
• Output torque:
  • Via Grove port (5V): 0.021 N·m / 0.2 kgf·cm at 350 mA current
  • Via CAN (XT30, 16V): 0.065 N·m / 0.66 kgf·cm at 927 mA current, dimensions: 40×40×40mm
• Weight: 160g

Scope of delivery:

• 1x RollerCAN Unit
• 1x PwrCAN cable (10cm)
• 2x HY2.0-4P Grove cables (5cm)
• 6x Friction pins
• 1x Flange
• 1x Mount
• 1x Allen wrench (2.5mm)
• 1x Allen wrench (2mm)
• 6x M3 nuts
• 2x M3x14mm hex socket screws
• 4x M3x14mm countersunk screws
• 4x M3x12mm countersunk screws
• 1x Debug cable 5P, 100mm