moteus r4.3 controller


In stock

SKU: moteus_r4_3 Category:


The moteus brushless controller turns a hobby brushless motor into a high performance servo actuator.  It integrates the necessary drive electronics, a high performance 32 bit microcontroller, an absolute magnetic encoder, and a high-speed data interface in a compact package.  Power and data are daisy chained for integration into multiple servo systems.

They can be used to build dynamic robots like the mjbots quad A1 (inspired by the backflip capable MIT mini-cheetah).


  • 3 phase brushless FOC based control
  • 170 MHz 32 bit STM32G4 microcroprocessor
  • Voltage Input: 12-34V
  • Peak Phase Current: 60A
  • Dimensions: 46x53mm – CAD drawing in github
  • Mass: 14.2g
  • Communications: 5Mbps CAN-FD
  • Control rate: 40kHz
  • Power Connector: 2x XT30PW-M
  • Data Connector: 2x JST PH-3
  • Open source firmware (Apache 2.0):

Each controller also has included 2 mating XT30 connectors and 2 mating JST-PH3 housings with crimp terminals.

A developer kit is also available.  It includes a motor, fdcanusb, power supply and necessary cabling.

Documentation is available in github and youtube:

Additional information

Weight 0.03 kg
Dimensions 6 × 10 × 1 cm