Made in india Arduino UNO R4 is now a 32-bit microcontroller board, previously based on 8-bit AVR.
The Arduino R4 board features 14 digital I/O ports and 6 analog channels.
Dedicated pins for I2C, SPI, and UART connections.
Significantly larger memory: 8 times more flash memory (256 kB) and 16 times more SRAM (32 kB).
Fastest 48 MHz clock speed, 3x faster than its predecessors.
Onboard ESP32-S3 module for Wi-Fi and Bluetooth connectivity.
Onboard 12x8 LED matrix, making it one of the most visually unique best Arduino boards to date. The LED matrix is fully programmable, allowing you to load anything from still frames to custom animations.