Joe Desbonnet combined an Arduino microcontroller with a magnetic coil to create what he calls the “Poor Man’s NFC”.

While his wireless Arduino to Android bridge isn’t likely to win any awards for throughput, it is a great proof of concept project.

Arduino Uno R4 WiFi comes with built-in Wi-Fi and Bluetooth capabilities, along with additional pins and a new, faster processor.

Arduino relay shields are abundant, along with real-time clocks, and now, built-in WiFi. The tough part will be coming up with apps and web interfacing, but that's not totally necessary either.

Good news DIYers, XBee now comes in WiFi flavors. The favorite wireless module of Arduino tinkerers everywhere is growing up and adding 802.11n to its normal compliment of RF and ZigBee options ...

While a few Wi-Fi solutions have existed to connect your Arduino to the internet wirelessly, the release of the new Arduino Wi-Fi shield makes those projects even simpler.