DFRobot
Raspberry Pi Motor Driving Expansion Board (Compatible with Raspberry Pi 4B / 3B+ / 3B / Zero)
· MPN: DRI0054
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##Introduction The multifunctional motor driver expansion board is designed for Raspberry Pi Zero/Zero W/A+/B+/2B/3B/3B+/4B. This fully-featured robot motor ...
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##Introduction The multifunctional motor driver expansion board is designed for Raspberry Pi Zero/Zero W/A+/B+/2B/3B/3B+/4B. This fully-featured robot motor expansion board is capable of supporting multiple motors, stepper motors, and servos simultaneously. It also provides spare camera and DIP display screen ribbon interfaces and can be used in stack layers to expand more control interfaces. The control interface uses a simple I2C interface, compatible with 3.3V/5V levels, and also includes a UART interface for easy communication with external devices. Additionally, it features a built-in DC-DC voltage stabilizing circuit, ensuring a stable power supply for Raspberry Pi with a current reach of up to 3A. This expansion board is particularly suitable for applications such as DIY robots, smart cars, robotic arms, intelligent cloud decks, and more. Figure: Interfaces Diagram of the Raspberry Pi Motor Driver Expansion Board ##Features Supports driving 8 servos simultaneously. 3Pin (black, red, blue GVS) standard interface wiring, convenient for connecting servos, servo power can switch to external independent power supply12-bit resolution, adjustable PWM frequency up to 1.6KHz, configurable push-pull or open-drain outputSupports 4-way 6~24V DC motors, PH2.0 interface or screw terminalSuitable for Raspberry Pi Zero/Zero W/A+/B+/2B/3B/3B+/4BReserved camera and DIP display screen ribbon interfaceThe expansion board reserves 2 IIC expansion interfaces, 1 serial interfaceOnboard passive buzzer, onboard infrared receiver ##Applications DIY robotsSmart carsRobotic armsIntelligent cloud decks ##Specification Power supply voltage: 6 ~ 25VPower interface: DC2.1 interface or 3.5mm wiring columnPWM servo interface ×8DC motor interface ×4Encoder motor drive interface ×4 6 ~ 25VThe IIC address of the driver board is 0x60 ##Documents Product wikiTutorialSchematic ##ShippingList Raspberry Pi Driving Board × 1
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Plain-language definitions for the technical terms used above.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- motor driver
- An electronic circuit that lets a low-power controller switch and control a motor that needs more current than the controller pins can safely provide. Checking motor driver support matters because pumps and motors usually cannot be connected directly to a microcontroller output.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
- 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.
- 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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