Pololu Jrk G2 Motor Controllers with Feedback


With integrated support for analog voltage or tachometer (frequency) feedback, the Jrk family of motor controllers makes it easy to add closed-loop control of speed or position (but not both!) of a single brushed DC motor to a wide range of applications. These versatile, general-purpose modules support a variety of high-level control interfaces: USB for direct connection to a computer, TTL serial and I²C for use with a microcontroller, RC hobby servo pulses for use in an RC system, and analog voltages for use with a potentiometer or analog joystick. They also offer many settings that can be configured using our free configuration software utility. This software simplifies initial setup of the device and allows for in-system testing and monitoring of the controller via USB.

The table below lists the members of the Jrk family, including the original (green) versions, and shows the key differences among them.


Jrk
21v3

Jrk
12v12

Jrk G2
21v3

Jrk G2
18v19

Jrk G2
24v13

Jrk G2
18v27

Jrk G2
24v21
Recommended max
operating voltage:
28 V(1) 16 V 28 V(1) 24 V(2) 34 V(3) 24 V(2) 34 V(3)
Max nominal
battery voltage:
24 V 12 V 24 V 18 V 28 V 18 V 28 V
Max continuous current
(no additional cooling):
2.5 A* 12 A 2.6 A 19 A 13 A 27 A 21 A
USB, TTL serial,
Analog, RC control:
Yes Yes Yes Yes Yes Yes Yes
I²C control: Yes Yes Yes Yes Yes
Hardware current limiting: Yes Yes Yes Yes
Dimensions: 1.35″ × 1.35″ 1.85″ × 1.35″ 1.0″ × 1.2″ 1.4″ × 1.2″ 1.7″ × 1.2″
Price: $79.95 $169.95 $59.95 $119.95 $139.95 $159.95 $149.95
1 Transient operation (< 500 ms) up to 40 V.
2 30 V absolute max.
3 40 V absolute max.
* Reduced from “3 A” based on newer, more stringent tests. The value now is directly comparable to the rating for the newer G2 21v3.

Products in category “Pololu Jrk G2 Motor Controllers with Feedback”

Pololu item #: 3149
Brand: Pololu supply outlook
Status: Rationed (Active and Preferred) 
RoHS 3 compliant
Out of stock.
Quantity:

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.

Pololu item #: 3148
Brand: Pololu supply outlook
Status: Rationed (Active and Preferred) 
RoHS 3 compliant
Out of stock.
Quantity:

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 30 V operating range and can deliver continuous output currents up to 27 A without a heat sink. Male headers and terminal blocks are included but not soldered, allowing for custom installations.

Pololu item #: 3146
Brand: Pololu supply outlook
Status: Rationed (Active and Preferred) 
RoHS 3 compliant
Out of stock.
Quantity:

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 30 V operating range and can deliver continuous output currents up to 19 A without a heat sink. Male headers and terminal blocks are included but not soldered, allowing for custom installations.

Pololu item #: 3147
Brand: Pololu supply outlook
Status: Rationed (Active and Preferred) 
RoHS 3 compliant
Out of stock.
Quantity:

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 13 A without a heat sink. Male headers and terminal blocks are included but not soldered, allowing for custom installations.

Pololu item #: 3143
Brand: Pololu supply outlook
Status: Rationed (Active and Preferred) 
RoHS 3 compliant
Out of stock.
Quantity:

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. This version ships with soldered header pins and terminal blocks.

Pololu item #: 3142
Brand: Pololu supply outlook
Status: Rationed (Active and Preferred) 
RoHS 3 compliant
Out of stock.
Quantity:

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.

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