Pololu TReX Jr Dual Motor Controller Part # 605058, US $59.99 – Picture 0

Pololu TReX Jr Dual Motor Controller Part # 605058, US $59.99 – Picture 1

Pololu TReX Jr Dual Motor Controller Part # 605058, US $59.99 – Picture 2

Pololu TReX Jr Dual Motor Controller Part # 605058, US $59.99 – Picture 3

Pololu TReX Jr Dual Motor Controller Part # 605058, US $59.99 – Picture 4

Pololu Trex Jr Dual Motor Controller Part # 605058

US $59.99

Winfield, Kansas, United States
Jun 9th

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DREAM. DESIGN. BUILD. REPEAT. The TReX Jr Dual Motor Controller, a lower-power version of the TReX Dual Motor Controller, is a versatile DC motor controller designed to seamlessly blend autonomous and human control of small robots. The TReX Jr can control two bidirectional and one unidirectional motor via three independent control interfaces: radio control (RC) servo pulses, analog voltage, and asynchronous serial (RS-232 or TTL). Using the compact MC33887 motor driver allows for a single-board design that reduces cost while maintaining a small package. As an added benefit, the use of the MC33887 motor driver allows operation to 24V. The TReX Jr uses five input channels to receive the RC or analog control signals. When operating in RC or analog mode, the five channels function as follows: Channel 1: motor 1 speed and direction or, if in mix mode, turn left/right Channel 2: motor 2 speed and direction or, if in mix mode, go forward/reverse Channel 3: auxiliary (unidirectional) motor speed Channel 4: can be used to enable “flipped mode”, which allows invertible robots to be controlled as normal when they are inverted Channel 5: determines whether the motors are controlled by the channel inputs or the serial interface; this channel allows you to switch between autonomous and human control at will Size: 1.75” x 1.75” x 0.5” Weight: 15g The serial interface can switch instantly with one of the other two interfaces, allowing mixed autonomous and remote control. For example, a robot could be configured to run autonomously most of the time, but a human operator could override the autonomous function if the robot gets stuck or into a dangerous situation. If the serial mode is selected as the primary interface, high-resolution measurements of all five channel input signals (be they RC pulses or analog voltages) are made available to the autonomous robot controller, allowing for complex and unlimited mixing of operator control and sensor input. For example, the TReX would be a great motor controller for a remotely controlled balancing robot. Specifications Motor Driver: MC33887 Motor Channels: 3 Control Interface: non-inverted TTL serial (2 way); RS-232 serial (1-way), RC servo pulses, analog voltage Minimum operating voltage: 5V Maximum operating voltage: 24V Continuous output current per channel: 2.5A Peak output current per channel: 5A Current sense: 0.5 V/A Maximum PWM frequency: 10 kHz Minimum logic voltage: 2.7V Maximum logic voltage: 5.5V Reverse Voltage Protection: Yes RC/Analog control features Battery Elimination Circuit (BEC) jumper lets the TReX Jr optionally power your RC receiver or analog controller mix-mode jumper allows for single-stick motor control of differential-drive robots automatic calibration for your particular RC or analog controller (the TReX Jr can learn the channel ranges) Options accessible through the serial interface all five high-resolution channel input values are available remapped channel input values show what the TReX Jr would do if it were in control optional 7-bit cyclic redundancy checking to ensure command/data validity calibration values can be explicitly read and set each channel can be reversed and parabolically scaled current limit, acceleration, and maximum motor speed settings the bidirectional motors can (individually) be set to coast or variable brake when in the deadband upgradable firmware Safety features “safe-start” requirements prevent accidental motor activation at power-up optional automatic motor shutdown on serial error, timeout, or input channel noise

Condition:	New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...	Brand	Pololu
Robotics Controls Type	Motor Controller
Model	605058
MPN	605058
Type	Robotics Control