M5Stack
RollerCAN Unit with BLDC Motor (STM32)
RollerCAN Unit with BLDC Motor (STM32)
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The RollerCAN Unit is a brushless DC motor motion control kit that supports 6-16V DC input via the CAN (XT30) interface or 5V input through the Grove connection, with automatic power factor adjustment for optimal performance. Its FOC closed-loop drive system uses a 3504 200KV brushless motor, delivering a continuous phase current of up to 0.5A without forced cooling and 1A for short bursts. Feedback from a magnetic encoder gives you precise control of current, speed, and position.
There is an optional slip ring on the shaft, providing a continuous 360° rotation while keeping the Grove connection connected between the top and base. This allows for power and data transmission through the rotating part and makes it easy to expand with additional modules. The slip ring also provides an extra I2C Connector.
A 0.66" OLED display on the back provides real-time status updates, and the RGB indicator and function button makes interaction with it simple. The top and base include LEGO-compatible mounting holes and M3 screw holes, making it easy to assemble and incorporate into builds. The hardware and software are open-source, supporting motion control and parameter adjustments via CAN or I2C buses, and providing SWD and SWO debugging interfaces for developers.
There are two versions of this unit. Unit Only and with Slip Ring. Please choose which option you want before adding to the cart!
Features
- Brushless DC motor control
- CAN communication / I2C communication control
- Integrated OLED display
- RGB indicator light
- FOC closed-loop drive system
- Slip ring (Optional)
Specifications
| MCU | STM32G431CBU6 @ Cortex-M4, 128KB Flash, 32KB SRAM, 170MHz |
| Motor Type | D3504 200KV brushless motor @ diameter: 41mm |
| Driver Chip | DRV8311HRRWR |
| Angle Sensor | TLI5012BE1000 |
| Communication Ports | 2x CAN (XT30 interface) @ XT30 (2+2) PW-M |
| 2x I2C (0x64) (1x I2C without Ring) | |
| Display | 0.66" OLED display, Resolution: 64 x 48, SPI Communication |
| RGB LEDs | 2x WS2812-2020 |
| Motor Power Supply | CAN (XT30 interface) @ 6-16V power supply |
| Grove Port DC5V power supply | |
| Slip ring (Optional) Grove port DC5V power supply | |
| Load | Load: 50g Motor speed: 2100rpm Current: DC16V/225mA |
| Load: 200g Motor speed: 1400rpm Current: DC16V/601mA | |
| Load: 500g (maximum load) Motor speed: 560rpm Current: DC16V/918mA | |
| No load: DC16V/78mA | |
| Standby Current | Grove port DC5V power supply @ 70mA |
| CAN (XT30 interface) power supply DC16V @ 32mA | |
| Output Torque | Grove port DC5V power supply: 0.021N.m / 0.2kgf.cm @ 350mA current |
| CAN (XT30 interface) DC16V power supply: 0.065N.m / 0.66kgf.cm @ 927mA current | |
| Slip Ring (Grove port) Output Capacity (Optional) | DC5V / 300mA |
| Noise Level | 48dB |
| Operating Temperature | 0-40°C |
| Product Dimensions | 40 x 40 x 40mm (40 x 40 x 30 without Ring) |
| Package Dimensions | 170 x 75 x 52mm |
| Product Weight | 84.4g (71.9g without Ring) |
| Package Weight | 157.7g (150.4 without Ring) |
Resources
Package Contents
Unit Only
- 1x RollerCAN Lite Unit
- 1x PwrCAN Cable (10cm)
- 1x HY2.0 4-pin Grove Cable (5cm)
- 6x Friction Pins
- 1x Flange
- 1x Bracket
- 1x Hex Key (2.5mm)
- 1x Hex Key (2mm)
- 6x M3 Nuts
- 2x Inner hex socket cap screws M3x14mm
- 4x Inner hex socket cap screws M3x10mm
- 1x Inner hex socket cap screw M2x5mm
- 4x Inner hex countersunk screws M3x14mm
- 2x Inner hex countersunk screws M3x12mm
- 4x Inner hex countersunk screws M3x5mm
- 1x Single-head terminal cable 5P debugging cable, 1.25mm pitch, 100mm length
With Slip Ring
- 1x RollerCAN Unit
- 1x PwrCAN Cable (10cm)
- 2x HY2.0 4-pin Grove cables (5cm)
- 6x Friction Pins
- 1x Flange
- 1x Bracket
- 1x Hex Key (2.5mm)
- 1x Hex Key (2mm)
- 6x M3 Nuts
- 2x Inner hex socket cap screws M3x14mm
- 4x Inner hex countersunk screws M3x14mm
- 4x Inner hex countersunk screws M3x12mm
- 1x Single-head terminal cable 5P debugging cable 1.25mm pitch, 100mm length
