Jrk G2 18v27 USB Motor Controller with Feedback Pololu

DESCRIPTION

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 the free software. It supports five control interfaces: USB, TTL serial, I2C, analogue 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 27A without a heat sink.

General Specs:

• Motor Channels: 1
• Control Interface: USB, non-inverted TTL serial, I2C, RC servo pulses and an analogue voltage
• Minimum Operating Voltage: 6.5V
• Maximum Operating Voltage: 30V
• Continuous Output Current per Channel: 27A
• Max PWM Frequency: 20 kHz
• Reverse Voltage Protection: Yes
• Version: G2 18v27 (30V max, 27A max continuous)

FEATURES

Features of the Jrk G2 family:

• Easy open-loop or closed-loop control of one brushed DC motor
• A variety of control interfaces:
  • USB for direct connection to a computer
  • TTL serial operating at 5 V for use with a microcontroller
  • I²C for use with a microcontroller
  • RC hobby servo pulses for use in an RC system
  • Analogue voltage for use with a potentiometer or analogue joystick
• Feedback options:
  • Analogue voltage (0 V to 5 V), for making a closed-loop servo system
  • Frequency, for closed-loop speed control using pulse counting (for higher-frequency feedback) or pulse timing (for lower-frequency feedback)
  • None, for open-loop speed control
  • Note: the Jrk does not support using quadrature encoders for position control
• Ultrasonic 20 kHz PWM for quieter operation (can be configured to use 5 kHz instead)
• Simple configuration and calibration over USB with free configuration software utility (for Windows, Linux, and macOS)
• Configurable parameters include:
  • PID period and PID coefficients (feedback tuning parameters)
  • Maximum current
  • Maximum duty cycle
  • Maximum acceleration and deceleration
  • Error response
  • Input calibration (learning) for analogue and RC control
• Optional CRC error detection eliminates communication errors caused by noise or software faults
• Reversed-power protection
• Field-upgradeable firmware
• Optional feedback potentiometer disconnect detection

RESOURCES

• Jrk G2 Software and Drivers for Windows
• Jrk G2 Software for Linux (x86)
• Jrk G2 Software for Linux (Raspberry Pi)
• Jrk G2 Software for macOS
• Jrk G2 Arduino library
• Jrk G2 software source code