With a microcontroller and a bluetooth module to transmit data between Arduino and your smartphone
Opens your phone's sensors and capabilities to be used as virtual shields for Arduino
Stack 1Sheeld on top of your Arduino board, and write the code using 1Sheeld library.
Pair 1Sheeld board with 1Sheeld app over bluetooth.
Select the shields from a list of over 40 shields.
Great shield and app! The shield is great. The code examples make using the shield easy. I paired one with a relay shield and now I can control everything on my work bench by talking to my phone. My phone then talks to me in response. Cheap and easy automation.(Jarvis like) GS5. Joshua Stanton 1sheeld customer
This is a really great shield to allow your Arduino to do things that were extremely difficult or impossible in the past. I invested $50 in the cheapest Android tablet I could find so that I could experiment with this shield and I am really glad I did. Jason K Amazon