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TReX Jr Dual Motor Controller DMC02

2,150.00 THB

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Part No. : ELE-WA451655218
Manufacture No. : DMC02
จำนวนในสต็อก : 2
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รายละเอียดสินค้า: TReX Jr Dual Motor Controller DMC02

This lower-power, smaller, and lower-cost version of the TReX is the ultimate general-purpose motor controller for small motors: it has a wide operating range (5 to 24 V), delivers 2.5 A continuously per motor, provides current sensing on the two main channels, and it features the TReX triple interface that allows you to control motors from a serial line (RS-232 or TTL), radio control (RC) receiver, or analog voltage source such as a potentiometer.

 

A novel blend of serial, RC, and analog motor control

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 24 V.

 

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 invertable 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

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

1.75" x 1.75" x 0.5" (0.3" height without connectors)

Supply voltage

5 – 24 V

Primary motor outputs

2 bidirectional, 5 A peak, up to 2.5 A continuous (may be combined to control 1 bidirectional, 5 A continuous)

Auxiliary output

1 unidirectional, 10 A 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, 1 us 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 115,200 bps

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


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)

Dimensions
    - Size:1.75" x 1.75" x 0.5"
    - Weight:15 g


General specifications
    - Motor driver:MC33887
    - Motor channels:31
    - Control interface:non-inverted TTL serial (2-way); RS-232 serial (1-way),
    - RC servo pulses, analog voltage
    - Minimum operating voltage:5 V
    - Maximum operating voltage:24 V
    - Continuous output current per channel:2.5 A2
    - Peak output current per channel:5 A3
    - Continuous paralleled output current:5 A
    - Current sense:  0.5 V/A4
    - Maximum PWM frequency:10 kHz
    - Minimum logic voltage:2.7 V
    - Maximum logic voltage:5.5 V
    - Reverse voltage protection?:Y


Notes:
    1 Two bidirectional, one unidirectional.
    2 On primary channels.
    3 On the primary channels.
    4 Current readings are converted to a digital number from 0-255.

ไฟล์ดาวน์โหลด: TReX Jr Dual Motor Controller DMC02

downloads TReX_Jr.pdf : Download
downloads trex_c_sharp.pdf : Download
downloads TReX Jr command documentation : Download
downloads TReX Jr configuration parameter documentation : Download
downloads MC33887 motor driver datasheet : Download

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