4 x DL3416 Display
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I've always liked these type of bubble displays and have picked up various ones over time.  Recently I decided to put some to use and so built this to test them out.


The goal was to get 4 of these displays on a board and control them with an ESP32 so as to allow some network based functionality for it.

Here's some pics of what these displays look like:




The datasheet for these things describes how to arrange four of these things for a total of 16 digits.


Seemed pretty straight forward so I decided to make it.


Next page : schematic and circuit board.






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