Mini Development Board Compatible with Arduino Nano R4 Made in China
Below is the specifcation of this RA4M1 controller board:
| Technical Specification | Details |
|---|---|
| Main Board | Arduino® Nano R4 with headers |
| Type | Arduino® Nano R4 |
| Inventory Unit | ABX00143 |
| Microcontroller | Renesas RA4M1 (Arm® Cortex®-M4) |
| USB | USB-C® (programming port) |
| Digital I/O Pins | 21 (all exposed I/O pins can be used as digital I/O) |
| Analog Input Pins | 8 |
| Digital-to-Analog Converter (DAC) | 1 |
| PWM Pins | 6 |
| External Interrupts | 2, 3 |
| Analog-to-Digital Converter (ADC) | A0 |
| Operational Amplifier | A1, A2, A3 |
| Virtual Reality Technology Center | J5 |
| Universal Asynchronous Receiver/Transmitter (UART) | 1 |
| I²C | 2 (5V: A4, A5 / 3.3V: Qwiic, J3, J4) |
| SPI | 1 |
| Operating Voltage | +5V DC |
| Input Voltage (VIN) | +6–21V DC |
| DC Current per I/O Pin | 8 mA |
| Core Clock Speed | 48 MHz |
| Flash Memory | 256 KB |
| SRAM | 32 KB |
| EEPROM | 8 KB |
This is a 32-bit ARM development board compatible with the Arduino Nano form factor. It is powered by the Renesas RA4M1 (Cortex-M4 core), replacing the older 8-bit AVR Nano. The hardware pinout is fully compatible with the Nano, allowing direct use of Nano expansion boards and pin headers.
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