Seeed Studio XIAO RA4M1 - Soldered
Seeed Studio XIAO RA4M1 - Soldered has a 5-10 day lead time before dispatch. Order will only be sent once all items are available for delivery.
Seeed Studio XIAO RA4M1 - Soldered
Seeed Studio XIAO RA4M1 integrates Renesas' RA4M1 chip, a 32-bit ARM Cortex-M4 MCU running at up to 48 MHz with FPU, into the classic 21 x 17.8mm XIAO form factor. It offers 256KB flash, 32KB SRAM, 8KB EEPROM, a USB 2.0 connector, a 14-bit ADC, a 12-bit DAC, and a CAN bus interface, and shares the same 32-bit microcontroller as the Arduino Uno R4, making it natively compatible with the Arduino IDE.
Solder-Free for Instant Creation
This version comes with headers already soldered on, so there's no soldering iron required. Just unbox it and plug straight into a breadboard, ideal for rapid prototyping, workshops, and beginner-friendly builds.
Expanded I/O for More Complex Projects
The board adds 8 new IO pins on the back compared to earlier XIAO boards, bringing the total to 19 GPIOs. That extra I/O headroom makes it a better fit for more complex applications that would otherwise outgrow a standard XIAO board.
Onboard Resources and Security
Alongside the 14-bit ADC and 12-bit DAC, the board includes USB 2.0 and an onboard RGB LED. Built-in hardware encryption, secure boot, and key storage add a level of application security for projects that need it, backed by AES128/256.
Efficient Power Design
Four operating modes are available, with deep sleep consumption as low as 45μA, along with onboard charging circuitry and support for lithium battery charge management, making it a solid option for battery-powered applications.
Compact and Production-Friendly
At 21 x 17.8mm, it keeps the classic thumb-sized XIAO form factor. Its SMD design places all components on the front with stamp holes on both sides, suited to efficient mass production as well as bench prototyping.
Specifications
| Processor | Renesas RA4M1, 48MHz ARM Cortex-M4 with FPU |
| RAM | 32KB SRAM |
| Flash | 256KB |
| LEDs | User LED, Power LED, RGB LED |
| Interfaces | 19 IOs total, 6x analog, 19x digital, 2x I2C, 2x UART, 2x SPI |
| Buttons | Reset Button, Boot Button |
| Security | AES128/256 |
| Low Power (Typ.) | 42.6μA@3.7V |
| Software Compatibility | Arduino IDE |
| Working Temperature | -20°C to 70°C |
| Dimensions | 21 x 17.8mm |
Pinout
Resources
- Seeed Studio Wiki, full setup guides, pinout diagrams, and project examples
- Renesas RA4M1 Datasheet
- Browse our full range of XIAO Expansion & Breakout Boards
Prefer to solder your own headers? Grab the XIAO RA4M1 instead.
This product can be found here:
