M5Stack Roller485 Unit with BLDC Motor RS485 / I2C

The Roller485 Unit is a powerful and versatile module that combines a brushless DC motor (BLDC) with a precise RS485/I2C interface. It is specifically designed for developers seeking a robust, efficient, and easily integrable solution for motorized projects. Thanks to the integrated slip ring, it enables uninterrupted power and data transmission, even with continuous 360-degree rotation. This makes it ideal for applications where freedom of movement and reliability are critical. Whether for prototypes, robotics, or automated systems – this unit provides everything you need for precise and reliable motor control. The Roller485 Unit is characterized by its compact design, high energy efficiency, and versatile applications. With the integrated STM32 chip, it offers stable performance and extensive control options. Additionally, the support of RS485 and I2C ensures easy integration into existing systems. The motor itself delivers precise control, while the slip ring ensures that the transmission of signals and power remains reliable – ideal for rotating applications.

Features:

• Brushless DC Motor Control (BLDC): The BLDC motor delivers an exceptionally quiet, efficient, and smooth performance, ideal for precise controls and durable applications.
• RS-485 and I2C Communication: This unit supports control via RS-485 or I2C, enabling flexible integration into a variety of control systems.
• Integrated OLED Display: A high-resolution OLED display shows important system information in real-time and facilitates monitoring.
• RGB Indicator Lights: Multicolor LED indicators provide visual feedback on status and ease diagnosis during commissioning.
• FOC (Field Oriented Control) Closed Loop: Advanced control technology ensures optimal motor performance and stability, even under changing loads.
• Slip Ring Integration: The unit allows uninterrupted transmission of power and data with continuous 360° rotation, ideal for rotating applications.
• Compact Design: With its convenient format, the unit is also suitable for projects with limited space.
• Integrated STM32 Microcontroller: The powerful microcontroller ensures stable and reliable motor control.

Application Examples:

• Use in robotics projects where precise motion control is required.
• Use in rotation systems, such as rotating platforms or camera mounts.
• Integration in prototypes and IoT devices requiring movement mechanisms.
• Control of automated machines in the industry.
• Use in educational institutions to demonstrate motorized projects.

Documentation: 

• M5Stack Wiki
• Official M5Stack Forum

Technical Specifications:

• Manufacturer: M5Stack  
• Manufacturer SKU: U182
• MCU: STM32G431CBU6 @ Cortex-M4, 128KB Flash, 32KB SRAM, 170MHz
• Motor Type: D3504 200KV Brushless Motor, Diameter: 41 mm
• Driver Chip: DRV8311HRRWR
• Angle Sensor: TLI5012BE1000
• Communication Interface: PWR-485 (HT3.96-4P Interface), I2C (0x64)
• Display: 0.66-inch OLED Display, Resolution: 64x48, SPI Communication
• RGB LEDs: 2x WS2812-2020
• Motor Power Supply: PWR-485 (HT3.96-4P Interface) @ 6-16V, Grove-Port DC5V Power Supply
• Slip Ring Power Supply: Grove-Port DC5V Power Supply
• Load:
  • 50g: Motor Speed: 2100 RPM, Current: DC16V/225mA
  • 200g: Motor Speed: 1400 RPM, Current: DC16V/601mA
  • 500g: Motor Speed: 560 RPM, Current: DC16V/918mA
  • No Load: Current: DC16V/78mA
• Standby Power Consumption:
  • Grove-Port DC5V Power Supply: 70mA
  • RS-485 (HT3.96-4P Interface) Power Supply DC16V: 32mA
• Slip Ring Output Capacity: DC5V/300mA
• Noise Level: 48 dB
• Operating Temperature: 0-40°C
• Dimension: 40 x 40 x 40mm
• Weight: 156g

Package Contents:

• 1x M5Stack Roller485 Unit with BLDC Motor RS485 / I2C
• 1x Roller485 Unit
• 1x HT3.96R-4P Connector
• 2x HY2.0-4P Grove Cables (5 cm)
• 6x Friction Pins
• 1x Flange
• 1x Bracket
• 1x Allen Wrench (2.5 mm)
• 1x Allen Wrench (2 mm)
• 6x M3 Nuts
• 2x M3x14 mm Hex Screws
• 4x M3x14 mm Countersunk Screws
• 4x M3x12 mm Countersunk Screws
• 1x Single-Sided Terminal Cable (5-pin Debugging Cable)