Pololu TReX Dual Motor Controller DMC01

₪480

תיאור

Pololu TReX Dual Motor Controller DMC01

The TReX blends RC, analog, and serial inputs for a powerful motor control solution capable of delivering a continuous 13A per motor.
The TReX will work right out of the box as an electronic speed control (ESC),
but its ability to seamlessly transition between RC/analog and serial control makes it capable of so much more!

A Novel Blend of Serial, RC, and Analog Motor Control

The TReX Dual-Motor Controller is a versatile, high-power
DC motor controller designed to seamlessly blend autonomous and human control of small- and medium-sized robots.
The TReX 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).
It maintains compactness through a two-board design that
features the VNH2SP30-based Dual High-Current Motor Driver Carrier as its bottom layer.
(For a lower-power version of the TReX, please consider the TReX Jr).

The TReX 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 invertable robots tobe 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

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.

Technical specifications

Dimensions	1.9" x 1.9" x 0.8"
Supply voltage	6 – 16 V
Primary motor outputs	2 bidirectional, 30A peak, up to 13A continuous per channel (may be combined to control 1 bidirectional, 25A continuous)
Auxiliary output	1 unidirectional, 15A continuous
Speed control	128 steps in each direction
Control interfaces	RC servo pulses, analog voltages, or serial commands; master interface set by mode-select jumper
Input channels	5 (RC servo pulses or analog voltages)
RC pulse measurements	12-bit resolution, 1us accuracy
Analog measurements	10-bit resolution
Serial interface	both RS-232 and TTL (logic level), bidirectional
Baud rates	supports 11 common baud rates ranging from 1200 to 115,200bps
Expanded protocol	Allows multiple Pololu servo and motor controllers on one serial line
Compact protocol	Allows both motors 1 and 2 to be simultaneously set with just three bytes

מידות

Size:	1.9" x 1.9" x 0.8"
Weight:	1.3 oz

מאפיינים כלליים

Motor driver:	VNH2SP30
Motor channels:	3¹
Control interface:	non-inverted TTL serial (2-way); RS-232 serial (1-way), RC servo pulses, analog voltage
Minimum operating voltage:	6 V
Maximum operating voltage:	16 V
Continuous output current per channel:	13 A
Continuous paralleled output current:	25 A
Current sense:	0.13 V/A²
Maximum PWM frequency:	19.5 kHz
Minimum logic voltage:	2.7 V
Maximum logic voltage:	5.5 V
Reverse voltage protection?:	Y