Romeo BLE Quad - STM32 Robot Controller, 4-Ch Motor Driver (DFR0398)

Romeo BLE Quad - STM32 Robot Controller, 4-Ch Motor Driver (DFR0398) — DFRobot — DFR0398

STM32F103RET6-based Arduino-compatible robot controller at 72 MHz with TI CC2540 Bluetooth 4.0 (30 m range), four DC motor drive channels, 10 digital and 5 analog I/O pins, and Gravity interface connectors. Logic runs at 3.3 V; external motor supply is 7–10 V DC.

Pinout

Logical pinout · physical placement not verified
ROMEO BLE QUAD - STM32Digital IOSPIAnalog IO3.3VGravity connectorsMotor powerMotor outputsGNDI2CBluetoothUART
  • Digital IO
    Type · Signal
  • Analog IO
    Type · Signal
  • Gravity connectors
    Type · Signal
  • Motor outputs
    Type · Control
  • I2C
    Type · Signal
  • UART
    Type · UART
  • SPI
    Type · Signal
  • 3.3V
    Type · Power
  • Motor power
    Type · Power
  • GND
    Type · Ground
  • Bluetooth
    Type · Signal

Start wiring

USB · 3.3 V

Confirm the data interface matches your host board.

Module pins: 3.3V, Motor power, GND, Digital I/O, Analog I/O, Gravity connectors, I2C, UART. Schematik maps them to your board in the app.

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Specialists: Teensy for high-clock audio and USB, Adafruit SAMD boards running CircuitPython or the Arduino IDE, proper STM32 eval kits, and the micro:bit classroom ecosystem. Schematik builds target ESP32, Arduino Uno, and Pico; come here when you have a specific reason to.

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