Spectral micro datasheet¶

Spectral Micro is a brushless motor controller designed to offer affordable and capable hardware, complemented by open-source software. It supports multiple firmware options and integrates a 14-bit magnetic encoder, inline current sensing, CAN and UART data interface, and provides support for position, velocity, torque, and impedance control.
Everything you need for developing high-performance robotic solutions is included.
It is ideal for gimbal motors, quadrupeds, robotic arms, and grippers. See the list of tested motors.

Features

Electrical specs
- 3 phase brushless FOC controller
- Voltage input: 12 - 29V
- Max continuous phase current: 2.8A
- Max phase current: 2.8A (with good cooling)
- Inline current sensing
- PWM switching rate: 25 kHz
- Max power: 80W
- Idle power: 0.3W
- Control loop frequency: 5kHz
- Max electrical frequency: 460 Hz

Mechanical specs
- Mass: 8 g
- Dimensions: 39mm x 39mm
- Nema 17 compatible mounting hole distances

Features
- STM32f103c microcontroller
- 14 bit encoder
- CAN and UART communication
- Daisy chain CAN and power connector
- EEPROM memory 16 Kbit
- Hardware overcurrent, over-under voltage and temperature protection
- Fully open source firmware and support for SimpleFOC
- One additional pin analog input, digital input or output
- Temperature sensor connector
- Torque, velocity, position, and Impedance control modes
- Auto calibration features

Each spectral micro BLDC controller is Fully end of line tested.