Description The RollerCAN Lite Unit is a brushless DC motor motion execution kit without a slip ring, designed for compact and efficient motion control. It supports 6-16V DC input through the CAN interface or 5V input through the Grove interface, automatically adjusting the power coefficient for stable operation. Its FOC closed-loop drive system uses a D3504 200KV brushless motor with magnetic encoder feedback. The device supports current, speed, and position triple-loop control, making the RollerCAN Lite Unit suitable for robot joints, automation mechanisms, visual demonstrations, and developer motion-control experiments. Notice: The power supply for the RollerCAN Lite Unit should not exceed 16V. If the voltage exceeds 18V, the motor fault code E:1 is displayed, the motor stops working, Over Voltage is shown, and the LED lights blue.In absolute position mode, an encoder value of 36000 pos corresponds to 360°. Mechanical installation angle and encoder angle may not be strictly aligned, so an error of about 2° may occur. Features Brushless DC motor control with FOC closed-loop drive. CAN and I2C communication for motion control and parameter adjustment. 0.66-inch OLED status display on the back of the unit. Built-in RGB indicators and function buttons for direct interaction. RollerCAN Lite Unit base with LEGO-compatible mounting holes and M3 screw holes. Specifications Type Brushless DC motor motion execution kit without slip ring MCU STM32G431CBU6 Cortex-M4, 128KB Flash, 32KB SRAM, 170MHz Motor D3504 200KV brushless motor, 41mm diameter Driver chip DRV8311HRRWR Angle sensor TLI5012BE1000 Communication interfaces 2 x CAN via XT30 interface, 1 x I2C at 0x64 Display 0.66-inch OLED, 64 x 48 resolution, SPI communication RGB LEDs 2 x WS2812-2020 Motor power CAN XT30 power supply 6-16V, Grove port DC 5V power supply Standby current Grove DC 5V at 70mA; CAN XT30 DC 16V at 32mA Noise 48dB Output torque 0.021N.m via Grove 5V; 0.065N.m via CAN XT30 16V Operating temperature 0 ~ 40°C Item dimensions 40.0 x 40.0 x 40.0mm Item weight 72.2g Package size 105.0 x 76.0 x 54.0mm Gross weight 154.0g Applications Robot joint control and compact rotary motion modules. Smart manufacturing equipment and automated mechanism prototypes. Visual demonstrations requiring controlled brushless motor movement. Open-source motion-control development using CAN or I2C with the RollerCAN Lite Unit. Product List 1 x Unit RollerCAN-Lite 1 x PwrCAN Cable (10cm) 1 x HY2.0-4P Grove cable (5cm) 6 x Friction pins 1 x Flange 1 x Bracket 1 x Motor Mounting Plate 1 x Hex key (2.5mm) 1 x Hex key (2mm) 6 x M3 nuts 2 x Hex socket head M3x14mm screws 4 x Hex socket head M3x10mm screws 1 x Hex socket head M2x5mm screw 4 x Hex socket countersunk M3x14mm screws 2 x Hex socket countersunk M3x12mm screws 4 x Hex socket countersunk M3x5mm screws 1 x Single-ended terminal cable, 5P debug cable, 1.25mm pitch, 100mm length Other Content The device is fully open-source in hardware and software, with SWD and SWO debugging interfaces for development flexibility. Before installation, confirm the selected power input, mounting direction, and load range, especially when using the RollerCAN Lite Unit in joints or automation fixtures. Resources RollerCAN Lite document RollerCAN motion control guide RollerCAN main board schematic PDF TLI5012BE1000 angle sensor datasheet DRV8311HRRWR motor driver datasheet RollerCAN Arduino library RollerCAN internal firmware repository RollerCAN I2C protocol PDF RollerCAN CAN protocol PDF FAQ Does this version include a slip ring? No. This is the Lite version without a slip ring. Which control interfaces are supported? It supports CAN and I2C control for motion control and parameter adjustment. What power input should be used? Use 6-16V DC through the CAN interface or 5V through the Grove interface, and do not exceed the specified voltage range for the RollerCAN Lite Unit.
