Pololu Jrk 3A 8-28V USB Motor Controller with Feedback (with headers)

PololuSKU: RB-Pol-128
Manufacturer #: 1394

Price  :
Sale price $51.95


  • Simple bidirectional control of one DC brush motor
  • Operating supply range: 5V to 28V
  • 3A maximum continuous current output (5 A peak)
  • High-speed communication protocol

The Pololu Jrk 21v3 USB motor controller  is a versatile, motor controller that supports interfaces, including USB. The continuous output current is approximately 3A in the recommended operating range of 8-28 V, with derated performance down to 5V and transient protection to 40V. Analog voltage and tachometer (frequency) feedback options allow quick implementation of closed-loop servo systems, and a free configuration utility.

Pololu Jrk 3A 8-28V USB Motor Controller with Feedback (with headers)

Key improvements over competing products:

  • USB connectivity with emulated serial (COM) port
  • Ultrasonic PWM to eliminate switching-induced motor shaft hum or whine
  • High internal resolution (12 bits) for smooth and flexible calibration to various input and feedback devices
  • Current sensing and limiting
  • Reversed power protection
  • Field-upgradeable firmware


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