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Product description: Seeed Xiao RA4M1 - ARM Cortex M4 - Seeedstudio 102010551
The Xiao RA4M1 is a development board from Seeedstudio that offers a wide range of features in the classic Xiao form factor. It uses a 32-bit Renesas RA4M1 microcontroller (ARM Cortex M4, 48 MHz), offering 256 KB of Flash memory, 32 KB of RAM and 8 KB of EEPROM. It has 19 I/O pins , including 14 analog pins, and interfaces such as CAN, USB 2.0, 14-bit ADC, 12-bit DAC and RGB LED . It has reset and boot buttons, and thanks to its low current consumption (45 μA) and built-in charging circuit, it is ideal for battery- powered projects. Compatibility with the Arduino IDE makes programming easy, and its small dimensions (21 x 17.8 mm) allow it to be used in projects with limited space.
The manufacturer has prepared a detailed user guide that will help you get started with Xiao RA4M1 - check it out!
Seeed Xiao RA4M1 - ARM Cortex M4 - Seeedstudio 102010551.
By using the same 32-bit R7FA4M1AB3CFM microcontroller as the Arduino Uno R4 , it offers full compatibility with the Arduino IDE.
Main Features of the Seeed Xiao RA4M1 Board
- High-performance microcontroller : Renesas RA4M1 (32-bit ARM Cortex M4, up to 48 MHz) with 256 KB Flash memory and 32 KB SRAM
- Extensive hardware resources : 14-bit ADC, 12-bit DAC, CAN BUS interface, USB 2.0 and built-in RGB diode
- More GPIO : 19 GPIO pins (including 8 new, additional ones on the bottom of the board) enable more complex projects
- Advanced security features : hardware encryption, secure boot and key storage, and more to keep your apps safe
- Arduino IDE Compatibility : Makes it easy to create and prototype projects
- Efficient power consumption : 4 working modes, deep sleep power consumption is only 45 μA, support battery charging
- Compact size : 21 x 17.8 mm format, ideal for building devices with limited space
Seeed Xiao Series - a choice depending on your needs
The Seeed Xiao series boards are distinguished by their minimalist size (21 x 17.8 mm) and high functionality, making them ideal for applications in limited spaces. Compared to other models, such as the Seeed Xiao ESP32-C3 or Seeed Xiao ESP32-C6 , which offer WiFi and Bluetooth capabilities, the Xiao RA4M1 focuses on low power consumption, security, and a large number of I/O pins . It is an ideal option for applications with CAN communication and for those who need less computing power with full compatibility with the Arduino IDE.
Layout of elements on the board
- Charging LED
- Reset button
- RGB LED
- Boot button
- User LED
Arrangement of components on the board.
Seeed Xiao pinout.
Module Applications
Xiao RA4M1 is ideal for battery-powered projects such as wearable devices, robotics, control systems, as well as education and prototyping. With its low power consumption and extensive features, the board is perfect for applications requiring a small size and long battery life . It is also a great solution for production projects, thanks to its easy assembly.
Seeed Xiao RA4M1 Technical Specification
- Chip: Renesas RA4M1 ARM Cortex-M4, 48 MHz
- Flash Memory: 256 KB
- RAM: 32kB
- EEPROM: 8kB
- I/O connectors: 19 pins (14 analog, 19 digital, 2x I2C, 2x UART, 2x SPI)
- Interfaces: CAN, USB 2.0
- Power supply: 5V (USB Type-C), 3.8V (battery)
- Security: AES128/256, Secure Boot
- Power Consumption: 45 μA in Deep Sleep Mode
- Operating temperature: -20°C to 70°C
- Compatibility: Arduino IDE
- Dimensions: 21 x 17.8 mm
Kit Contents
- 1x Seeed Xiao RA4M1
- 2x 7-pin connectors
It has dimensions consistent with the entire Xiao series. 
