Arduino UNO R4 WiFi Board With Renesas RA4M1 Microcontroller

Editorial photo #13764912 Science and Technology

Arduino UNO R4 WiFi Board With Renesas RA4M1 Microcontroller

An Arduino UNO R4 WiFi development board is seen in close-up detail in Bari, Italy, on May 23, 2026. The blue board features the Renesas RA4M1 (R7FA4M1) 32-bit ARM Cortex-M4 microcontroller and an integrated ESP32-S3 module providing WiFi and Bluetooth connectivity. The Arduino UNO R4 WiFi, released in 2023, represents the fourth generation of the Arduino UNO platform, a widely used open-source microcontroller board for electronics prototyping and education. (Photo by Matteo Della Torre/NurPhoto)

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© 2026 NurPhoto - Matteo Della Torre/NurPhoto
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