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Jrk G2 24v21 USB Motor Controller with Feedback
This powerful motor controller makes closed-loop speed or position (but not both!) control of a brushed DC motor easy, with quick configuration over USB using our free software. It supports five control interfaces: USB, TTL serial, I²C, analog voltage (potentiometer), and hobby radio control (RC). This version offers a wide 6.5 V to 40 V operating range and can deliver continuous output currents up to 21 A without a heat sink. Male headers and terminal blocks are included but not soldered, allowing for custom installations.
Alternatives available with variations in these parameter(s): version Select variant…
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Compare all products in Pololu Jrk Motor Controllers with Feedback or  Pololu Jrk G2 Motor Controllers with Feedback.
Pololu Jrk G2 Motor Controllers with Feedback.
| Description | Specs (13) | Pictures (14) | Resources (16) | FAQs (1) | On the blog (2) | Distributors (26) | 
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Documentation and other information
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Jrk G2 Motor Controller User’s Guide (Printable PDF)User’s manual for the Pololu Jrk G2 USB Motor Controllers with Feedback. 
File downloads
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Jrk G2 Software and Drivers for Windows (11MB msi)
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Jrk G2 Software for Linux (x86) (9MB xz)
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Jrk G2 Software for Linux (Raspberry Pi) (6MB xz)
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Jrk G2 Software for macOS (8MB pkg)
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Dimension diagram of the Jrk G2 21v3 USB Motor Controller with Feedback (215k pdf)
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Dimension diagram of the Jrk G2 18v19 and 24v13 motor controllers (220k pdf)
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Dimension diagram of the Jrk G2 18v27 and 24v21 motor controllers (208k pdf)
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3D model of the Jrk G2 21v3 USB Motor Controller with Feedback (11MB step)
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3D model of the Jrk G2 18v19 and 24v13 motor controllers (11MB step)
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3D model of the Jrk G2 18v27 and 24v21 motor controllers (11MB step)
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Drill guide for the Jrk G2 21v3 USB Motor Controller with Feedback (59k dxf)This DXF drawing shows the locations of all of the board’s holes. 
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Drill guide for the Jrk G2 18v19 and 24v13 motor controllers (83k dxf)This DXF drawing shows the locations of all of the board’s holes. 
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Drill guide for the Jrk G2 18v27 and 24v21 motor controllers (95k dxf)This DXF drawing shows the locations of all of the board’s holes. 
Recommended links
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Jrk G2 library for ArduinoThis is a library for the Arduino IDE that helps interface with a Jrk G2 USB Motor Controller with Feedback using serial or I²C. 
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Jrk G2 software source codeThis repository contains the source code of the Pololu Jrk G2 Configuration Utility (jrk2gui) and the Pololu Jrk G2 Command-line Utility (jrk2cmd). It also has drivers for Windows and build instructions. 












































