M5Stack Roller485 Unit with BLDC Motor (STM32)
📦 Location of the warehouse: China
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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
1. General Shipping Information
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Shipping address should be input in English without any special symbols to help the courier company recognize your address in the system. We will ship according to the shipping address you provided. Please notify us of any address change before your order is marked "Shipped" to avoid parcel loss.
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With standard courier practice, you need to check the contents of the parcel before signing for your goods. Otherwise, we will not be held responsible for any damage that may have occurred in transit.
2. Shipping Options for Germany and EU* countries
(For Products in Munich Warehouse)
2.1 Shipping options for an order value of up to €30 inside Germany or €50 inside the EU*
Shipping Options:
| Shipping Options | Germany | EU* |
|---|---|---|
|
Deutsche Post |
€3.5 Arrive in 3-4 Business Days |
€6 Arrive in 5-9 Business Days |
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DHL Paket |
€6 Arrive in 2-3 Business Days |
€15 Arrive in 3-7 Business Days |
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DHL Express |
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€65 Arrive in 2-3 Business Days |
2.2 Free shipping options for an order value of above €30 inside Germany or €50 inside the EU*:
| Free Shipping Options | Germany | EU* |
|---|---|---|
|
Deutsche Post |
Free Above €30 | Free Above €50 |
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DHL Paket |
+ €2 for Above €30 / Free Above €60 | + €8 for Above €50 / Free Above €80 |
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DHL Express |
+ €10 for Above €30 | + €60 for Above €50 |
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Certain EU Countries are not included in our EU Zone definition: United Kingdom (excluding Ireland), Switzerland, Liechtenstein, Vatican City, Albania, Belarus, Norway, Ukraine, and Iceland. For the above countries, the International Shipping Rule applies.
2.3 Shipping Options for International Countries:
(via Deutsche Post or YunExpress)
| Order Amount | International |
|---|---|
| €0 - €15 | €8 |
| €15 - €30 | €7 |
| €30 - €50 | €6 |
| €50 and above | €4 |
Important Notice:
- Please verify the inventory location on the product page before placing your order to confirm delivery timeframes.
- For products in the Shenzhen warehouse, we will typically first ship the products from the Shenzhen warehouse to our Munich warehouse, which will take around 1.5 weeks. After we receive the shipment in Munich, we will send the items to you. We will only arrange YunExpress shipping from Shenzhen for orders with products in the Shenzhen warehouse worth more than €50.
- If you place an order with products from both Munich and Shenzhen warehouses, we will first ship the products in the Munich warehouse, and then send the remaining products to you when we receive them from Shenzhen.
3. International Warehouse
3.1 German Warehouse
3.2 Chinese Warehouse
4. Customs and Taxes
4.1 How are customs handled by OpenELAB for import or export?
4.2 How is VAT charged when the Customer places an order from OpenELAB?
4.3 What kind of fee will be charged except VAT?
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.
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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.
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Warranty Exclusions
The warranty does not apply in the following cases:
- The product is beyond the 12-month warranty period.
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