Waveshare R7FA4 PLUS A Development Board (R7FA4M1AB3CFM)
Waveshare R7FA4 PLUS A Development Board (R7FA4M1AB3CFM) - Image 2
Waveshare R7FA4 PLUS A Development Board (R7FA4M1AB3CFM) - Image 3
SKU: IOWC-1305
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Waveshare R7FA4 PLUS A Development Board (R7FA4M1AB3CFM)

₹1,079.00 (Inclusive of all taxes)
Out of Stock

The Waveshare R7FA4 PLUS A is a development board based on the Renesas R7FA4M1AB3CFM microcontroller, offering full hardware compatibility with the Arduino UNO R4 Minima footprint for rapid prototyping and sensor integration.

Features

  • Powered by Renesas RA4M1 Arm Cortex-M4 MCU running at 48MHz for responsive embedded control.
  • Features 256KB Flash and 32KB SRAM for handling complex firmware and data logging tasks.
  • Adds advanced peripherals including a 12-bit DAC, CAN bus interface, and operational amplifiers.
  • Onboard 5V/3.3V selectable power headers enable compatibility with a wide range of shields and sensors.
  • Supports flexible power input via USB-C or an external 6-24V DC supply for robust field deployment.

Out of stock

Description

The Waveshare R7FA4 PLUS A development board provides a cost-effective and versatile platform for engineers and makers transitioning to Renesas’ RA family. It leverages the R7FA4M1AB3CFM microcontroller, built around an Arm Cortex-M4 core, delivering a balance of 48MHz processing speed, substantial 256KB program memory, and 32KB RAM for data-intensive applications.

Beyond core Arduino UNO R4 Minima compatibility, this board integrates several industrial-grade peripherals not found on basic dev kits. The inclusion of a 12-bit DAC, CAN bus controller, and op-amps expands its utility into areas like analog signal conditioning, automotive networking, and precision control systems. The board’s dual power rails and wide external input voltage range support stable operation when driving motors, relays, or multiple expansion modules.

Key Features

  • Full hardware compatibility with Arduino UNO R4 Minima pinout and shield ecosystem.
  • Enhanced with professional interfaces: 12-bit Digital-to-Analog Converter (DAC) for analog output.
  • Integrated Controller Area Network (CAN) bus for industrial and automotive communication.
  • Onboard operational amplifiers for signal amplification and conditioning directly on the board.
  • Dual voltage supply headers (5V/3.3V) for flexible peripheral and sensor compatibility.
  • Robust power management supporting USB-C or a wide-range 6-24V external DC input.
  • Comprehensive GPIO broken out to standard headers for easy wiring and prototyping.

Applications

  • Industrial control and automation systems utilizing CAN bus communication.
  • Prototyping embedded systems with analog audio or waveform generation via the DAC.
  • Educational platforms for learning Arm Cortex-M4 architecture and Renesas RA MCUs.
  • Sensor data acquisition and signal conditioning projects using onboard op-amps.
  • General-purpose maker projects requiring Arduino shield compatibility with enhanced features.

Technical Specifications

Microcontroller/SoCRenesas R7FA4M1AB3CFM (Arm Cortex-M4)
Core Frequency48 MHz
Flash Memory256 KB
SRAM32 KB
Key Peripherals12-bit DAC, CAN Bus, Operational Amplifiers
Operating Voltage5V / 3.3V (Selectable)
External Input Voltage6V - 24V DC
Primary InterfaceUSB Type-C (Power & Programming)
Form FactorArduino UNO R4 Minima Compatible

Frequently Asked Questions

How do I program the Waveshare R7FA4 PLUS A board?

You can program it using the Arduino IDE. First, install the "Renesas RA Boards" core via the Boards Manager. Connect the board via the provided USB-C cable, select 'Renesas RA' as the board family, choose the correct model (e.g., UNO R4 Minima), and set the correct port. The board appears as a serial device for uploading sketches and serial communication.

What is the purpose of the onboard 12-bit DAC and how do I use it?

The 12-bit Digital-to-Analog Converter (DAC) allows the board to generate precise analog voltage outputs, useful for audio, waveform generation, or control signals. In your Arduino code, use the AnalogWrite() function or the specific Renesas library functions for the DAC pin after configuring it in the setup(). Ensure you reference the correct pin mapping defined for the R7FA4 PLUS A.

Can I power this board and attached sensors solely from the USB port?

Yes, the USB-C port provides 5V power sufficient for the board itself and low-current sensors. For power-hungry peripherals like motors, displays, or multiple relays, use the external VIN pin with a 6-24V DC power supply. The onboard voltage regulator will provide stable 5V/3.3V to the board and headers, preventing USB port overload.

Package Includes

  • 1 x Waveshare R7FA4 PLUS A Development Board
  • 1 x USB Type-A to Type-C Cable

Additional Information

Weight 0.09 kg
Dimensions 9 × 12 × 4 cm

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