Since it began in 2014, Arduino Day has been an annual celebration of creativity, open-source hardware and a thriving community of engineers, developers and makers looking to showcase their latest ...

So let’s say your using an Arduino in your project. You already have the hardware-based serial interface working with one portion of the project and need a second serial port for unrelated hardware.

Connect your UNO R3 to your computer and configure the ATmega328P's ADC to read its internal temperature channel. Then print ...