DFRobot
Smart Arduino Digital Servo Shield for Dynamixel AX
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Some day,a guy want to make a robotic dog as a gift to his little son.He brought some digital servos, a microcontroller,Lipo batterys...Then he found ...
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Some day,a guy want to make a robotic dog as a gift to his little son.He brought some digital servos, a microcontroller,Lipo batterys...Then he found it hard to drive these smart servos with Arduino processor! So we developed a driver board that can easily & quickly drive the digital servos such as AX-12 with Arduino directly! Just like using Arduino official servo library.
With this smart arduino digital servo shield and Dynamixel AX series servos, It's quite easy for you to drive multi servos with daisy chain connection with an Arduino board such as Arduino Uno, and build your robotic dog, hexapod with powerful servos.
This shield Integrates a half duplex circuit inside.That means the transmit wire from UART is connected to all of the AX-12 servos. If a command sending over the wire without servo ID, all of the servos will receive the command, and if the message contains the destination servo ID then only one servo, matching that ID number, will receive it.
Because of the servo can be linked by serial bus, which can link up to 200+ servos. Each unit can feedback its position, rotation velocity, torque, current, motor temperature and so on.It can do rotating all round, and the velocity can be controlled, just act as a gear motor. This feature enables it to work as a motor of wheeled robots, or tracked robots. NOTE: The new batch servo AX-12 requires a default reset before altering working method. You can see it was written in the sample sketch.
APPLICATIONS
- Education
- Robot Arm
- Humanoid Robot
- Hexapod Robot
- Any other servo driven application
SPECIFICATIONS
- MCU:Atmega8
- Power Supply:6.5-12V
- Arduino Uno R3 layout format
- Supporting Dynamixel AX series servos
- SPI interface (Digital 10,11,12,13)
- Friendly using for the primary user
- UART interface for deeper development
- 7 channels for servo connecting
- A half duplex circuit inside
- Board surface:Immersion Gold
- Size: 59x53mm (2.32x2.09")
DOCUMENTS
- Wiki Doc
- Schematic
- CDS55XX Robot Servo User Manual
- ServoCds55 Library
- Slave code for deeper development_update
SHIPPING LIST
- Smart Arduino Digital Servo Shield for Arduino x1
Jargon buster
Plain-language definitions for the technical terms used above.
- Daisy chain
- A wiring layout where devices are connected one after another in a line. It matters because long or awkward chains can make projects messy or less convenient, while a hub lets several devices branch out from one point.
- LiPo
- A lithium polymer rechargeable battery commonly used in portable electronics projects. It matters because LiPo batteries need correct charging circuitry and care, and this board includes hardware intended for that battery type.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- servo
- A servo is a motor with built-in position control, usually told to move to a specific angle by a control signal. It matters when you need repeatable movement, such as steering, arms, flaps, or linkages, rather than continuous spinning.
- Shield
- An add-on board that plugs into a main controller board to give it extra features such as sensing, motor control or communication. Knowing a product supports shields helps you judge whether it can connect neatly into an existing maker-board setup.
- SPI
- A fast serial communication bus often used for displays, memory cards, and sensors. It matters because SPI devices need specific pins for clock and data, plus a separate chip-select line for each device.
- Torque
- A twisting force that causes something to rotate, usually measured in newton-metres or kilogram-centimetres. It matters when choosing motors, servos, gears, and tools because higher torque is needed to lift heavier loads, turn larger wheels, or move mechanisms without stalling.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
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