Check In to Foursquare

Pee to Check-In to Foursquare – Mark Your Territory using Arduino

In case you are unfamiliar with the most amazing new way to physically “check in” to foursquare here is a video that will explain it all: Mark Your Territory is a fully open-source system but because it interacts with the physical world as well as the digital one, some construction is necessary beyond just simply […]

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