Pololu Jrk G2 21v3 USB Motor Controller with Feedback

The Jrk G2 family of motor controllers is designed for seamless integration of closed-loop speed or position control with a single brushed DC motor. These modules accommodate a range of projects with their support for five control interfaces: USB, TTL serial, I²C, RC hobby servo pulses, and analog voltages. Configuration is streamlined via a free software utility compatible with Windows, Linux, and macOS, ensuring easy setup and real-time monitoring.

Ideal for robotics and automation projects, these motor controllers offer precise control with feedback options including analog voltage and frequency feedback. This allows for the creation of closed-loop systems that maintain desired speed or position, enhancing the performance of applications such as automated gates, robotic arms, or any system requiring precise motor control.

The Jrk G2 controllers stand out with their compact design and robust performance capabilities. They support higher operating voltages and larger output currents compared to earlier models, while also being more compact. The inclusion of ultrasonic 20 kHz PWM ensures quieter operation, making them suitable for environments where noise is a concern.

With features like configurable PID coefficients and hardware current limiting on higher-power versions, the Jrk G2 controllers provide fine-tuned control over motor operation. The ability to monitor input voltage and adjust deceleration limits further enhances their adaptability to various power conditions and operational requirements.

For those who prefer a solder-free setup, a version with pre-installed terminal blocks and header pins is available. This flexibility in installation, along with optional feedback potentiometer disconnect detection and field-upgradeable firmware, makes the Jrk G2 a versatile choice for both hobbyists and professionals.

Compared to the original Jrk controllers, the G2 series offers improved speed control accuracy at low frequencies and additional control options via the I²C interface. The USB Micro-B connector replaces the older Mini-B, ensuring compatibility with modern devices. The Jrk G2’s serial protocol enhances compatibility with existing systems, allowing for straightforward integration with minimal adjustments.