Infrared LED matrix

Posted on Wednesday, November 12th, 2014 in infrared, LEDs by DP


Jaanus made this infrared LED matrix project:

I have lately been doing bunch of different LED matrices. One of the most interesting one is an infrared matrix, made out of old Soviet infrared light that was used for data transmission (if I remember correctly – in studios). We repurposed it to LED screen that is visible only through cell phone camera.
We stripped out the insides of the device and mounted in our stackable led controller boards (link to github source). These two boards are designed to convert random amount of LEDs to Arduino controlled matrix. There is high side controller – 8 P-channel mosfets per board. And low side controller uses TI TLC5940 16 channel led controller. Low side board is stackable sideways, since I originally used it to control 8×70 matrix made out of cell phone backlights.

This entry was posted on Wednesday, November 12th, 2014 at 11:07 pm and is filed under infrared, LEDs. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

One Response to “Infrared LED matrix”

  1. Alex says:

    A screen you can only see with your cell camera hm? That would be great for a hidden bulletin board. You could put it behind a thin plastic or paper wall too. Intriguing possibilities…

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