DESCRIPTION
RETIRED PRODUCT – We’ve stopped stocking this product or it has been retired by the manufacturer and is no longer for sale. This page remains available for its resources and as a source of potential interest.
The powerful jrk 12v12 motor controller with feedback is a highly configurable brushed DC motor controller that supports four interface modes: USB, logic-level serial, analogue voltage, and hobby radio control (RC). The controller can be used as an open-loop speed control or for closed-loop speed or position control.
The jrk 12v12 is a versatile, general-purpose motor controller that supports a variety of interfaces, including USB. The 6 V to 16 V operating range and high continuous output current of 12 A (30 A peak) allow this board to control many medium-sized DC brushed motors. Analogue 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 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
FEATURES
- Simple bidirectional control of one DC brush motor
- 6 V to 16 V operating supply range
- 12 A maximum continuous current output (30 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 analogue voltage interface for direct connection to potentiometers and analogue joysticks
- Two closed-loop feedback options:
- 0-5 V analogue voltage
- Frequency/tachometer digital input up to 2 MHz with 1 ms PID period
- Open-loop control with no feedback is also available
- Simple configuration and calibration over USB with a 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 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
Specifications:
- Size: 1.35″ x 1.85″
- Weight: 0.5 oz
- Motor driver: VNH2SP30
- Motor channels: 1
- Control interface: USB; non-inverted TTL serial; RC servo pulses; analogue voltage (Autodetects baud rates between 300 and 115,200 bps, or can be set to any fixed baud rate in this range)
- Minimum operating voltage: 6 V
- Maximum operating voltage: 16 V
- Continuous output current per channel: 12 A
- Peak output current per channel: 30 A
- Current sense: 0.13 V/A (Current readings are converted to a digital number from 0-255)
- Maximum PWM frequency: 20 kHz
- Minimum logic voltage: 4 V (In RC mode, the pulses can be as low as 2V)
- Maximum logic voltage: 5 V
- Reverse voltage protection
RESOURCES
Datasheets:
- Pololu Jrk USB Motor Controller User’s Guide
- Pololu USB Software Development Kit
- Application Note: Using AutoHotkey with Pololu USB Products
- Jrk Motor Controller Windows Drivers and Software
- Dimension diagram of the Pololu Jrk 12v12 USB Motor Controller with Feedback
- Pololu Jrk 12v12 USB Motor Controller with Feedback drill guide
Recommended Links
- The Haunted Organist A spooky animatronic skeleton using the Jrk USB Motor Controller
- R2D2 dome position control A replica of the famous Star Wars droid R2D2 that uses the Jrk USB Motor Controller for position control
- Microsoft .NET Framework 3.5 The Microsoft .NET Framework version 3.5 is required for many Pololu configuration, control, and utility programs under Windows
Quick Shipping and Professional Packaging
Due to our longstanding partnership with UPS FedEx DHL as well as other top international carriers, we are able to provide a range of shipping options. Our warehouse staff are highly trained and will pack the goods according to our precise and exact specifications. Before they are shipped, your goods will be thoroughly examined and secured. We deliver to hundreds of thousands of customers every day in different countries. This demonstrates our dedication to become the biggest online retailer in the world. Both Europe and the USA have distribution and warehouse centers.
Note: Orders that contain more than one item are assigned a processing time depending on the item.
Prior to shipping, we examine the items ordered thoroughly before sending the items. The majority of orders will be shipped within 48 hours. The delivery time should be between 3 and 7 working days.
Returns
We are not able to manage the stock at our warehouse or factory. The stock levels may fluctuate at any given time. It's possible that the stocks could be depleted after the order has been made.
Our policy is valid for 30 days. Unfortunately, if the 30 days have elapsed after you bought your item, we will not be able to provide a refund or exchange.
In order for your item to be returned it must be in its original packaging, unopened and in the same state as you received it in. The item must be returned in its original packaging.
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