Then, an Arduino board might ... the Rev3 and R4 WiFi is the number of their serial ports and I2C buses. The Rev3 has a single serial connection, shared by the USB port and the RX/TX pins.

When you think of Arduino, your mind immediately pictures an Arduino Uno with its teal color, bulky USB port, and long microcontroller ... except for their sizes and the number of their analog ...

[Damian Peckett] has implemented an Apple ][, its 6502 processor, and a cassette port, all on an Arduino Uno. If that wasn’t enough, he also uses a PS/2 keyboard for input and outputs analog VGA.

The Arduino UNO R4 Minima comes equipped with the RA4M1 microprocessor from Renesas. Providing a power-packed performance and an array of extended capabilities, this robust microcontroller board ...

Software scalability is also supported on the new board, allowing easy upgrades for projects made with UNO R3 or Leonardo. Arduino said requests from the Arduino community see the USB port upgraded ..

Arduino has partnered with Renesas and Espressif to introduce the latest addition to its UNO family, the UNO R4, which offers a 3x performance improvement over the UNO R3 and is available in a Wi-Fi ...