PicapiCamera, developed by Casio, is the world's first iPhone app which uses visible light communication technology. To send and receive data via the app, the message to be sent is encoded using red, green and blue flashing lights and shown on the display. The receiver points their iPhone at the flashing lights and the data is transferred.
“There are two approaches to communication using visible light. One is to embed data in the light from illumination sources, by turning it on and off at high speed, as a natural way of communicating information. With that approach, devices use photodiodes. The other approach involves image sensors.
Akihabara News , Casio's PicapiCamera iPhone app is the world's first to use visible light communication technology, Casio's PicapiCamera iPhone app is the world's first to use visible light communication technology
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