The researchers used an Arduino Uno board, an Adafruit LCD, a desk fan and a household spray bottle to transmit a short message across a tabletop, via molecular diffusion. In the experiment ...

The generous 132×64 LCD is capable of displaying ... to purchase priced at $175 from Adafruit. If you liked this you might also be interested in building an Arduino wind speed meter.

You can buy these items separately from shops like Adafruit and SparkFun ... are components that receive data from the Arduino. This includes LEDs, LCD modules, servo motors, and buzzers.

This project uses a $30 Arduino Uno R3, an RGB LCD display, a waterproof temperature ... all of which are available at the link below from Adafruit directly if you want to pick them up together ...

The library is intended for use with the Arduino platform ... of hardware lots of us have lying around is not a huge hassle. Adafruit provide a few application examples in the project GitHub ...

It was, effectively, a small Arduino clone with a little bit of extra circuitry that made it great for portable and wearable projects. In the years since, and as Adafruit has recently pointed out ...