I cannot get over how easy it is to get code running on an Arduino, allowing me to write the code to try to connect to a 20 character x 4 line LCD (wearing an I2C-to-parallel ‘backpack).

1Sheeld is designed to replace many of the physical shields you use on an Arduino with virtual shields on your smartphone.

If you've heard the term "Arduino" but never quite know what people were talking about, then this is your lucky day.