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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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