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Pololu Jrk 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 on the newer G2 versions) 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 |
|
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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: |
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I²C control: | |||||||
Hardware current limiting: | |||||||
Dimensions: | 1.35″ × 1.35″ | 1.85″ × 1.35″ | 1.0″ × 1.2″ | 1.4″ × 1.2″ | 1.7″ × 1.2″ | ||
Price: | $69.95 | $199.95 | $59.95 | $99.95 | $99.95 | $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. |
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Products in category “Pololu Jrk Motor Controllers with Feedback”
Pololu item #: 3149 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
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) | |
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 #: 3147 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
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 #: 3146 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
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 #: 3142 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
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.
Pololu item #: 3143 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
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 #: 1392 | |
Brand: Pololu | supply outlook |
Status: End-of-Life Rationing | |
The Jrk 21v3 motor controller is a highly configurable brushed DC motor controller that supports four interface modes: USB, logic-level serial, analog voltage, and hobby radio control (RC). The controller can be used with feedback for closed-loop speed or position control, or it can be used without feedback as an open-loop speed control. The continuous output current is approximately 3 A in the recommended operating range of 8 V to 28 V, with derated performance down to 5 V and transient protection to 40 V. This version ships with connectors included but not soldered in, allowing for custom installations.
Pololu item #: 1394 | |
Brand: Pololu | supply outlook |
Status: End-of-Life Rationing | |
The Jrk 21v3 motor controller is a highly configurable brushed DC motor controller that supports four interface modes: USB, logic-level serial, analog voltage, and hobby radio control (RC). The controller can be used with feedback for closed-loop speed or position control, or it can be used without feedback as an open-loop speed control. The continuous output current is approximately 3 A in the recommended operating range of 8 V to 28 V, with derated performance down to 5 V and transient protection to 40 V. This version ships with connectors installed as shown (no soldering required).