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Pololu Jrk 21v3 USB Motor Controller with Feedback (Fully Assembled)

Pololu
AKTION

Ab Warenkorbwert 50€ ein Aufkleber gratis!

Hersteller:
Pololu
Artikel-Nr.:
EXP-R25-062
Herstellernummer:
1394
Stückzahl:
1

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Auf Lager

Garantiertes Versanddatum: 13.12.17, wenn Sie in den nächsten bestellen

48,80 €*
The jrk 21v3 is a versatile, general-purpose motor controller that supports a variety of interfaces, including USB. The broad operating range from 5 V to 28 V and continuous output current of 3 A (5 A peak) allow this board to control most small DC brushed motors. Analog voltage and tachometer (frequency) feedback options allow quick implementation of closed-loop servo systems, and a free configuration utility (for Windows) allows easy calibration and configuration through the USB port.

Key improvements over competing products and earlier Pololu motor controllers with feedback include:
  • USB connectivity with emulated serial (COM) port allows direct motor control from a PC.
  • Ultrasonic PWM to eliminate switching-induced motor shaft hum or whine.
  • Robust, high-speed communication protocol with user-configurable error condition response.
  • High internal resolution (12 bits) for smooth and flexible calibration to various input and feedback devices.
  • Current sensing and limiting.
  • Reversed power protection.
  • Field-upgradeable firmware.
Note: A USB A to mini-B cable (not included) is required to connect this controller to a computer.

Main Features of the Jrk 21v3:
  • Simple bidirectional control of one DC brush motor.
  • 5 V to 28 V operating supply range.
  • 3 A maximum continuous current output (5 A peak).
  • Four communication or control options:
    • USB interface for direct connection to a PC.
    • Full-duplex, TTL-level asynchronous serial interface for direct connection to microcontrollers or other embedded controllers.
    • Hobby radio control (RC) pulse width interface for direct connection to an RC receiver or RC servo controller.
    • 0–5 V analog voltage interface for direct connection to potentiometers and analog joysticks.
  • Two closed-loop feedback options:
    • 0–5 V analog voltage.
    • Frequency/tachometer digital input up to 2 MHz with 1 ms PID period. 
    • (Open-loop control with no feedback also available.)
  • Simple configuration and calibration over USB with free configuration program (Windows 8, Windows 7, Vista, and Windows XP compatible).
  • Configurable parameters include:
    • PID period and PID constants (feedback tuning parameters).
    • Maximum current.
    • Maximum duty cycle.
    • Maximum acceleration.
    • Error response.
    • Input calibration (learning) for analog 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.
  • Comprehensive user’s guide.
The jrk 21v3 is the smaller of two jrk motor controllers. For a higher-power version, see the jrk 12v12.

Dimensions:
  • Size: 1.35" x 1.35" x 0.4"1
  • Weight: 0.23 oz
General specifications:
  • Motor driver: MC33926
  • Motor channels: 1
  • Control interface: USB; non-inverted TTL serial2
  • Minimum operating voltage: 5 V
  • Maximum operating voltage: 28 V
  • Continuous output current per channel: 3 A
  • Peak output current per channel: 5 A
  • Current sense: 0.5 V/A3
  • Maximum PWM frequency: 20 kHz
  • Minimum logic voltage: 4 V4
  • Maximum logic voltage: 5 V
  • Reverse voltage protection?: Y
  • Partial kit?: Y
Notes:
  • 1.Without included hardware.
  • 2.Autodetects baud rates between 300 and 115,200 bps, or can be set to any fixed baud rate in this range.
  • 3.Current readings are converted to a digital number from 0-255.
  • 4.In RC mode, the pulses can be as low as 2V.

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