Home / Parts / Motors & Servos / Motor Controllers / Pololu Jrk 21v3 USB Motor Controller w/ Feedback Pololu Jrk 21v3 USB Motor Controller w/ Feedback SKU: 51003 Pololu Jrk 21v3 USB Motor Controller w/ Feedback$64.99 CAD 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).In stock + Pololu Jrk 21v3 USB Motor Controller w/ Feedback quantity $64.99 CAD- Add to cart SKU: 51003 Categories: Motor Controllers, Motors & Servos, Parts Tag: allAccounts Description Resources More Info Reviews (0) Description Like the Jrk 12v12, the JRK 21v3 is a very well thought-out motor controller. It’s like a little brother – similar characteristics, but not quite as strong. It’s ideal for small motors. Nice work, Pololu! Where the 12v12 is rated 16V and 12A continuous output, the 21v3 is rated 28V and 3A. Almost every other feature of the 12v12 implemented in the 21v3 (the exception being the current sensor being 0.5V per amp). Main points of interest: 5 to 28 VDC power input 3A with 5A surge current rating Can be controlled via: USB PWM (servo remote control style) Analog joystick/potentiometer Optional Feedback control via: 0-5V analog input Frequency signal (like a tachometer) Calibrate with USB interface to Windows software Configure feedback loops via software with control over PID period & constants. (Proportional / Integral / Derivative – embedded!) Error response Learning calibration for RC / Analog interfaces Programmable maximum Current Duty cycle Acceleration WOW – that’s a huge bundle of features for a compact unit measuring only 1.35″ x 1.35″ x 0.4″! So what make is so superior to other models of motor driver units? Control the motor via a PC’s USB port (as simulated serial interface) Ultrasonic PWM to eliminate switching-induced motor shaft hum or whine. Robust, high-speed communication protocol with user-configurable error condition response. 12-bit resolution (that’s 4096 levels) for smooth and flexible calibration to various input and feedback devices. Current sensing and limiting. Reversed power protection. Field-upgradeable firmware. The only serious limit to this unit is that it is a single motor driver. Not dual. So if you want to drive a robot, you’ll need one of these per motor. But with this feature set, it’ll be very easy to work with! Specifications: Motor channels: 1 Operating voltage: 5 – 28 V Continuous output current: 3 A Peak output current: 5 A Auto-detect baud rate range: 300 – 115,200 bps Available fixed baud rates: 300 – 115,200 bps Available PWM frequencies: 20 kHz, 5 kHz Reverse voltage protection?: Yes USB connector style: USB Mini-B Included Hardware: The jrk ships with a 14×1 straight 0.100″ male header strip and two 5mm, 2-pin terminal blocks. To provide maximum flexibility, none of these parts are soldered to the board. For the most compact installation, you can solder wires directly to the jrk pads themselves and skip using the included hardware. The included hardware allows you to make less permanent connections. You can break the 14×1 header strip into an 8×1 piece and two 3×1 pieces and solder these strips into the jrk’s I/O pads. Note: USB cable not included. Resources Pololu Jrk USB Motor Controller User's GuideDocumentationDrivers & Config Utility for JRK 21v3 and 12v12Support Software More Info Weight 0.011 kg Dimensions 4 × 4 × 1 cm Type DC Motor Motors 1 Reviews There are no reviews yet.Only logged in customers who have purchased this product may leave a review. Related products DPDT Toggle SwitchSKU: SWT8This DPDT (double pole-double throw) toggle switch is perfect for all kinds of useful and useless applications!$5.85 CAD In stockAdd to cart 6.8µF Tantalum CapacitorSKU: CP6.8uF6.8µF tantalum capacitors have low leakage and greater capacitance than monolithics.$1.09 CAD In stockAdd to cart Solarbotics Sumovore Baseplate UpgradeSKU: K SV-UPG1For owners of Sumovores purchased prior to May 2005, this kit solidifies your Sumovore with a powder-coated steel baseplate!$9.09 CAD In stockAdd to cart 22µF CapacitorSKU: CP22uF22uF 16V Electrolytic capacitor, great for smoothing power spikes.$0.39 CAD In stockAdd to cart 1.0F 2.5V Aerogel Super CapacitorSKU: CPAG1.0F1 farad worth of electron storage in a tiny Aerogel capacitor. These are the latest in high-density power capacitors!$6.49 CAD In stockAdd to cart
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