LED USB Dry Erase Board
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I made this to remind myself about things. Yeah, you can write on the whiteboard but it easily gets overlooked and this way you will always see what you need. You can display the time and date, display animations from your computer or even make your own light effect to react to music!
This device has an RGB LED matrix of 22 wide and 7 LEDs tall. It comes with a USB cable and can hang on the wall. You can even reprogram it to do anything. You can make it read and display a temperature and humidity sensor.