It’s hard to imagine an easier way to set up communications between an Android device and an Arduino using Bluetooth than by following this guide. In the center of the breadboard you can see the cheap ...

The HC-05, a Bluetooth to serial bridge, can be found for around $5 on the internet and therefore may be the cheapest way to add Bluetooth connectivity to your project. However, its default settings ...

Jealous of your Nexus S-owning friends and their fancy NFC chips after yesterday's Google Wallet announcement? Well tech tinkerer Joe Desbonnet has whipped up what he dubs "poor man's NFC" using an ...