'DarkLight' enables visible light communication in the dark

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With the rise in wearables such as smartwatches and fitness trackers that rely on smart sensors, and the continued popularity of smartphones, smart devices are taking our country by storm. Wireless data for such devices is typically beamed through Wi-Fi or Bluetooth, yet, the new wireless communication technology of “visible light communication (VLC),” has emerged as a new option albeit with limitations due to the challenges it faces in practice, such as being easily blocked or not being able to sustain transmission when light is off. Through a new project called “DarkLight,” researchers have developed and demonstrated for the first-time, how visible light can be used to transmit data even when the light appears dark or off.

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