Arduino UNO/Nano/Mega operates at 5V logic ... you must use a separate appropriately rated 3.3V supply (budget for ~100mA per reader). From the datasheet: "During operation with typical circuitry, the ...

It offers a middle ground between the Arduino UNO R4 Minima and the tiny XIAO RA4M1 USB-C board ... blink code samples for the Arduino IDE and VS Code (C program), as well as a datasheet and user ...

Arduino has launched its next generation of UNO boards, introducing a 32-bit Renesas microcontroller and Espressif ESP32-S3 module, one-click cloud connectivity and plenty of I/O plus a 12×8 red LED ...

If you feel nostalgic and misses the days of the rotary dial phone, Sky’s Edge “Rotary Un-Smartphone” is an open-source hardware rotary dial phone controlled by an Arduino board and equipped with a ...