Using the serial monitor that is built into the Arduino IDE (Integrated Development Environment, aka desktop software), write a program that reads in a value and echoes back the same value.

To do so, the Arduino was set up to monitor the BUSY line on the printer’s parallel port, setting the CTS line active whenever the busy line was inactive.

You can even get to the serial monitor, all in your browser with no actual Arduino hardware. You can also build simple circuits that don’t use an Arduino, although the component selection is ...

Usually, I use the Serial Monitor of the Arduino IDE to communicate with the Arduino hardware. But now, I want to build an application on my computer that allows me to click some buttons to control ...

The Arduino Due platform won't be quite as beginner-friendly as the company's other boards, so Arduino has taken measures to ensure that it doesn't end up in novice hands, at least initially.