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Jrk G2 21v3 USB Motor Controller with Feedback

Pololu item #: 3142 139 in stock
Brand: Pololu
Status: Active and Preferred 
RoHS 3 compliant
 Free shipping in USA 
 Free add-on shipping in USA 

Price break Unit price (US$)
1 49.95
5 45.95

backorders allowed

This compact 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 4.5 V to 28 V operating range and can deliver continuous output currents up to 2.6 A (5 A peak) 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…

 Description Specs (13) Pictures (12) Resources (16) FAQs (1) On the blog (2) 


Size: 1.2″ × 1.0″ × 0.3″1
Weight: 4.5 g1

General specifications

Motor channels: 1
Control interface: USB; non-inverted TTL serial; I²C;
RC servo pulses; analog voltage
Minimum operating voltage: 4.5 V2
Maximum operating voltage: 28 V3
Continuous output current per channel: 2.6 A4
Maximum PWM frequency: 20 kHz
Reverse voltage protection?: Y
Version: G2 21v3 (28 V max, 2.6 A max continuous)
Connectors soldered?: N

Identifying markings

PCB dev codes: umc06a
Other PCB markings: 0J11316


Without included hardware.
Powering the Jrk G2 21v3 with a supply voltage between 4.5 V and 5.5 V might cause its logic voltage to be lower than normal, which could affect operation. See the user’s guide for more information.
Transient operation (< 500 ms) up to 40 V.
Typical results at room temperature running at 90% duty cycle with VIN > 8 V. Operation from 4.5 V to 8 V reduces maximum current output.

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