A GPS unit and a Bluetooth-to-serial were tying up all the hardware UARTs on an AVR Arduino project ... IDs and assigns each a virtual serial port. While this was a hack born of necessity ...

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.

We'll outline the basics of the Arduino itself, what the crazy jumble of wires means, and then step through how to use other people's code and schematics to build your first electronics project ...

The need for a second UART port ( and one that is not shared with USB) on the Arduino Uno is so great that the “SoftwareSerial” library in included in the Arduino IDE. It emulates additional ...

Arduino enthusiasts searching for an isolated USB to UART converter specifically designed for the Arduino Pro mini may be interested in a new piece of hardware created by Simone based in Italy.