The Arduino Nano R4 delivers the trusted performance of the Renesas RA4M1 microcontroller in the beloved Nano form factor, making it the ultimate compact solution for embedded development, creative prototyping, and education. With pre-soldered headers, you can jump straight into breadboarding, testing, and connecting external modules like Modulino nodes. It features a Qwiic connector for rapid sensor expansion and a programmable RGB LED for intuitive system feedback. The single-sided design and castellated pins make it ideal for embedding into space-constrained, production-ready applications. Compatible with the Arduino IDE and libraries (including Arduino UNO R4 Minima), this board offers students, designers, and developers a flexible and familiar platform to build compact, connected, and scalable solutions. Whether you're working on interactive installations, miniaturized robotics, or industrial systems, the Nano R4 bridges the gap from classroom or lab to real-world deployment. For custom PCB integration, consider the Arduino Nano R4 without headers – perfect for advanced users building highly tailored hardware.