M5Stack Roller485 Unit with BLDC Motor (STM32)
📦 Location of the warehouse: Shenzhen, China
Free shipping for you
Free Shipping from 30€ in Germany, 50€ in the EU!
Trustpilot rating: 4/5
Thank you for your support - rate us on Trustpilot!
M5Stack Roller485 Unit with BLDC Motor (STM32)
The Roller485 Unit is a brushless DC motor (BLDC) motion actuator kit that's integrated with multiple control functions and designed with your needs in mind. It's perfect for efficient motion control! This product is ready to work with you! It supports 6-16V DC power input (via PWR485 interface) or 5V input (via Grove interface). It can even automatically adjust the power coefficient to ensure optimal performance! This amazing product features an internal FOC closed-loop drive system and uses a 3504 200KV brushless motor, with a maximum continuous phase current of 0.5A without forced cooling, and a short-term peak current of 1A. The driver uses a magnetic encoder for feedback, which is great for keeping an eye on things like current, speed, and position. This helps to make sure everything is running smoothly and precisely. The device's axle can be equipped with an optional slip ring, which is really handy! This allows the top Grove interface to remain connected to the bottom, enabling the expansion of additional modules while supporting 360° rotation. This also ensures power supply and data transmission to the rotating part, which is great!
And there's more! The back of the device features a 0.66-inch OLED display that can show real-time status, along with RGB indicator lights and function buttons for easy human-machine interaction. We've made it super easy for you to set up and integrate this product! The top and base are designed with LEGO-compatible mounting holes and M3 screw holes, so you can get started right away. We're happy to say that the Roller485 Unit's hardware and software are fully open-source! This means you can use motion control and parameter adjustment via RS485 or I2C buses. We've also made sure you have plenty of ways to debug your software, with both SWD and SWO interfaces. This product is a real workhorse! It's used in robotic joints, motion control, industrial automation, and visual demonstration projects.
Product Features
- Brushless DC motor control (BLDC)
- RS-485 communication / I2C communication control
- Integrated OLED display
- RGB indicator lights
- FOC closed-loop drive system
Included
- 1x Roller485 Unit
- 1x HT3.96R-4P plug
- 2x HY2.0-4P Grove cables (5cm)
- 6x Friction pins
- 1x Flange
- 1x Bracket
- 1x Hex key(2.5mm)
- 1x Hex key(2mm)
- 6x M3 nuts
- 2x M3x14mm socket head screws
- 4x M3x14mm countersunk head screws
- 4x M3x12mm countersunk head screws
- 1x Single-end terminal wire 5P debugging cable
Applications
- Robotic joint control
- Smart manufacturing equipment
- Visual demonstrations
Specifications
| Specification | Parameter |
|---|---|
| MCU | STM32G431CBU6 @ Cortex-M4, 128KB Flash, 32KB SRAM, 170MHz |
| Motor Type | D3504 200KV brushless motor @ diameter: 41mm |
| Driver Chip | DRV8311HRRWR |
| Angle Sensor | TLI5012BE1000 |
| Communication Interface | PWR-485 (HT3.96-4P interface) I2C (0x64) |
| Display | 0.66-inch OLED display, resolution: 64*48, 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_Grove port DC5V power supply |
| Load | Load: 50g Motor Speed: 2100rpm Current: DC16V/225mA Load: 200g Motor Speed: 1400rpm Current: DC16V/601mA Load: 500g Motor Speed: 560rpm Current: DC16V/918mA No load: DC16V/78mA |
| Standby Current | Grove port DC5V power supply @ 70mA RS-485 (HT3.96-4P interface) power supply DC16V @ 32mA |
| Output Torque | Grove port DC5V power supply: 0.021N.m/0.2kgf.cm @ current 350mA RS485 (VH3.96-4P interface) DC16V power supply: 0.065N.m/0.66kgf.cm @ current 927mA |
| Slip Ring (Grove Port) Output Capacity | DC5V/300mA |
| Noise | 48dB |
| Operating Temperature | 0-40°C |
| Product Size | 40*40*40mm |
| Packaging Size | 170*75*52mm |
| Product Weight | 82.9g |
| Packaging Weight | 158.1g |
RS485 Protocol
Roller485 Unit RS485 Protocol Table
Roller485 Unit RS485 user manual
Arduino
Effective Date: March 27, 2025
At OpenELAB, we are committed to providing accurate product descriptions and delivering high-quality products. If you experience any issues with your purchase, please notify us within 60 days of the shipment date.
1. Warranty Disclaimer
Unless explicitly stated in a specific agreement or purchase order, OpenELAB makes no warranties—express or implied—regarding the fitness, suitability, or merchantability of any product for a particular purpose or special use.
2. Warranty Policy
Warranty Period
The standard warranty period for products sold by OpenELAB is 12 months from the date of delivery.
Under this warranty, OpenELAB will make a reasonable effort to repair or replace products free of charge if defects are due to issues with raw materials, design, or manufacturing.
If the defect qualifies under this policy but falls outside the covered scope, reasonable charges may apply for repair or replacement.
After the warranty period, support may still be available at a reasonable fee.
Warranty Exclusions
The warranty does not apply in the following cases:
- The product is beyond the 12-month warranty period.
- Damage due to misuse, improper maintenance or storage, or failure to follow the user guide or manual.
- Issues caused by Force Majeure events (e.g., natural disasters, war, legal changes, etc.).
- Unauthorized repair attempts by the customer.
- The product is not defective but has been opened and is non-returnable by policy.
3. Returns & Refunds
If you're not satisfied with your purchase, you may be eligible for a return or exchange:
- Return for Refund: Within 15 days of receipt (unopened).
- Return for Replacement: Within 30 days of receipt (damaged or defective).
- Exchange Window: Up to 30 days from receipt.
Please email us at info@openelab.io for a return authorization before sending anything back.
Return Conditions
- Items must be in original, clean, and mint condition with packaging intact.
- Returns of damaged, used, scratched, modified, or programmed items will not be accepted.
- Include the receipt, a brief note with your name, order number, and reason for return.
Shipping & Fees
- Customers are responsible for return shipping to our warehouses in Europe, the US, or China.
- Refunds may be subject to additional shipping fees unless the return is due to our error.
- A flat €8 shipping fee will be deducted for returned items that originally qualified for free shipping.
Payment Platform Fees
For refunds processed through third-party platforms such as PayPal or Braintree, a standard 3.5% service fee may be deducted to cover payment processing costs.
