A while ago Casio came up with a new approach to sharing data and messages on a mobile device. Instead of a wireless data connection, it uses the camera to read and decode a multi-colored flashing ...
If you own an Android smartphone or tablet, you’re likely familiar with your device’s LED notification light. It’s a way for Android to communicate information to you even when your screen is off. A ...
If your Alexa is blinking yellow, it means you have an unread message. If your Alexa is flashing green, it means you have an incoming call. Other colors (like blue, purple, orange, and red) indicate ...
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