M5Stack Roller485 Lite Unit without slip ring RS485 / I2C

The Roller485 Lite Unit is a compact and efficient solution for precise motion control with a brushless DC motor (BLDC) and an RS485/I2C interface. This Lite version omits the slip ring but is still perfectly suitable for projects requiring reliable motor control without continuous rotation. The integrated FOC (Field Oriented Control) drive provides closed-loop control, allowing the motor to operate quietly and efficiently. The built-in OLED display and RGB indicator lights make it easy to monitor and interact with the device. With its compact design, LEGO-compatible mounting options, and open software and hardware architecture, the Roller485 Lite Unit offers a high level of flexibility for developers. Ideal for robotics, prototyping, industrial automation, or educational institutions, this unit delivers the precision and performance necessary to successfully implement even demanding projects.

Features:

• Brushless DC Motor Control (BLDC): The integrated BLDC motor ensures efficient and precise motion control.
• RS485 and I2C Communication: Allows flexible integration into existing systems with different control requirements.
• Integrated OLED Display: A 0.66-inch display shows real-time system information such as speed, current, and status.
• RGB Indicator Lights: Indicator lights provide visual feedback on system status and facilitate diagnostics.
• FOC Closed-Loop Control: Ensures stable and efficient motor performance with minimal energy consumption.
• Compact Design: With LEGO-compatible mounting options and M3 screw holes, integration into various projects is particularly easy.

Application Examples:

• Control of robotic joints in automated systems.
• Use in intelligent manufacturing facilities where precise movements are required.
• Educational projects to demonstrate motion control and programming.
• Integration into visual demonstration platforms or showcases.
• Use in IoT devices requiring motorized controls.

Documentation: 

• M5Stack Wiki
• Official M5Stack Forum

Technical Specifications:

• Manufacturer: M5Stack  
• Manufacturer SKU: U182-Lite
• 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 Interfaces: PWR-485 (HT3.96-4P Interface), I2C (0x64)
• Display: 0.66-Inch OLED Display, Resolution: 64x48, SPI Communication
• RGB LEDs: 2x WS2812-2020
• Power Supply: 6-16V via RS485 (HT3.96-4P) or DC5V via Grove Port
• Load:
  • 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 @ 70mA, RS485 DC16V @ 32mA
• Noise Level: 48 dB
• Operating Temperature: 0-40°C
• Dimension: 40 x 40 x 30mm
• Weight: 151g 

Package Contents:

• 1x M5Stack Roller485 Lite Unit without Slip Ring RS485 / I2C
• 1x HT3.96R-4P Connector
• 1x HY2.0-4P Grove Cable (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 Hexagon Socket Screws
• 4x M3x14 mm Countersunk Screws
• 2x M3x12 mm Countersunk Screws
• 4x M3x5 mm Countersunk Screws
• 1x Single-Sided Terminal Cable (5-Pin Debugging Cable)