Shulou(Shulou.com)11/24 Report--

Thanks to CTOnews.com netizens Rongling and ShiraYuki for the clue delivery! CTOnews.com April 3 news, Arduino is a convenient, flexible, easy-to-use open source electronic prototype platform, mainly including hardware (various types of Arduino development boards) and software (Arduino IDE).

As one of the most popular open source hardware on the market, Arduino launched Uno R3 as early as 2010 and an upgraded version-Arduino Uno R4 13 years later. The new product has made a huge leap forward in terms of processing power, memory, storage and network connectivity.

The Arduino UNO R4 will be released in May. Pricing has not been announced, and the "Minima" (regular) and Wi-Fi versions are available. The wireless version will be equipped with an Espressif S3 module that supports Wi-Fi and Bluetooth connections.

The UNO R4 maintains the same lead layout as the R3, upgrading to a 32-bit Renesas RA4M1 processor with 48 MHz. The new chip is based on the Arm Cortex M4 architecture and provides a performance leap compared to the previous generation of AVR RISC-based 8-bit 16-MHz ATmega328P processors.

Arduino said that most existing software libraries work without modification, but some software libraries optimized for AVR may need to be adjusted.

In addition, Uno R4 has 32K SRAM, which is 16 times that of the previous generation Uno R3 (2K). In addition, it has an onboard NAND of 256K, compared with 32K for R3.

In terms of interface, it has a USB-C interface that can be used to connect to PC, which is more modern than the bulky USB Type-B on the old model. At the same time, it also carries a 12-bit analog DAC, a CAN bus and a SPI port.

Arduino Uno R4 and R3 configuration comparison

Uno R4Uno R3CPURenesas RA4M1 (48 MHz, Arm Cortex M4) ATmega328P (16 MHz, AVR) SRAM32K2KNAND256K32K Max Voltage 24V20VUSBType-C (also supports power supply, maximum voltage is 5V) Type-BCTOnews.com reminder that although it is not yet available, there is an official Early Adopter program for developers that will give away a free Uno R4 to authors or maintainers of Arduino libraries or popular open source projects.

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