The jrk family of versatile, general-purpose motor controllers supports a variety of interfaces, including USB. 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.
There are two different jrk motor controllers:
The jrk 21v3 has a broad operating range from 5 V to 28 V. The continuous output current of 3 A (5 A peak) allow this board to control most small DC brushed motors.
The jrk 12v12 has an operating range from 6 V to 16 V. The high continuous output current of 12 A (30 A peak) allow this board to control many medium-sized DC brushed motors
Main Features of the Jrk 21v3
Main Features of the Jrk 12v12
Main Features of all Jrk Motor Controllers
The jrk 21v3 and jrk 12v12 each ship with a straight 0.1″ breakaway male header strip and two appropriately sized 2-pin terminal blocks (3.5 mm pitch for the 21v3 and 5 mm pitch for the 12v12). To provide maximum flexibility, none of these parts are soldered to the board (unless you ordered our fully assembled jrk 21v3, which ships with these parts soldered in as shown in the assembled jrk 21v3 picture above).
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 header strip into smaller pieces, such as an 8×1 piece and two 3×1 pieces, and solder these strips into the jrk’s I/O pads.
The three mounting holes are intended for use with #2 screws (not included).
Note: A USB A to mini-B cable (not included) is required to connect this device to a computer.
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