Source: Arduino, typesetting: Xiaoyu
WeChat public account: Chiphome (ID: chiphome-dy)
Arduino's upcoming open-source development board will feature a 32-bit Renesas RA4M1 processor instead of an 8-bit ATmega328P chip. Additionally, there will be a UNO R4 version, featuring an ESP32 module for wireless connectivity.
Unlike the Arduino Giga (STM32H747XI) board introduced earlier this month, the new Arduino R4 Minima will feature the following Renesas microcontrollers:
RA4M1 — Single-core ARM Cortex-M4 (up to 48MHz); 32kB SRAM; 256kB Flash
The Arduino announcement mentions that the UNO R4 will maintain its usual form factor, shield compatibility and 5V operation. However, the new Arduino UNO will also include an improved thermal design and a USB Type-C port that supports up to 24V. The company also says the new board will feature a CAN bus and an SPI port "to reduce wiring and perform parallel tasks by connecting multiple shields."
There will also be another Arduino UNO R4 variant that integrates an Espressif S3 module for Wi-Fi connectivity . It looks like both variants will feature a 12-bit digital-to-analog converter (DAC). Arduino also mentions that most existing libraries and examples will be compatible with the new Arduino UNO R4 platform.
Arduino hasn't revealed anything about pricing yet, but the new embedded platform is expected to be available in late May 2023 . Authors or maintainers of the popular open source Arduino library can become early adopters and get a UNO R4 Minima board. For more details, please click to read the original text .
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