The "server" program is a sketch that lives on the Arduino board waiting for serial data to be available (an integer in this case) and sends back the number by adding 1 to it to the "client".

The transistor serves as a current sink, and its base is connected to Arduino pin 3 (D3) to apply pulse width modulation control. The wiring diagram and sketch for a simple experiment is shown below. ...

Arduino Micro has some extra leds that it is tricky to programme. Like almost all Arduinos, has a built-in led – the green one on the left in the photo. And it has a pair of yellow leds – called TX ...

As the Arduino platform evolves it will keep pin compatibility in order to support the older shields. And if they choose a different microcontroller the Arduino IDE will still compile the same ...

We got it running on an Arduino Leonardo the quickest, because it has support for Serial1(). Don’t be discouraged by these glitches in this rev 0 deployment — [Eric] has really made quite a ...