Based on a Nordic Semiconductor 32-bit ARM system-on-chip that has built-in support for Bluetooth 4.0, the RFduino runs the same code as Arduino UNO and DUE ... as small as a button-cell battery ...

The request was understandable, considering the costly garage door remote and the fact that the buttons on the ... simply plugged the Bluetooth shield into an Arduino Uno. [Giles] did have one ...

developers and hobbyists that enjoy tinkering with Arduino wearable open source electronic hardware and creating projects using Bluetooth connectivity, may be interested in a new tiny button sized ...

One for Gadget Masters considering Bluetooth comms, maybe. The Bluetooth SIG has updated its range of developer toolkits, for those looking to build mobile apps, control IoT sensors, or even create ...