Addressable 7x5 LED Matrix display

The idea was to daisy chain as many of these as I wanted and have huge display.

Gabriel

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I used to be a patient man...sigh.

This project was also 10 years ago but for university.

The LED matrix was mounted on top of the circuit board in a "shield like manner" and Wire wrapped to each other.... you read that right, yes, Wire Wrap.

There was a DB-9 pig tail not shown here out of each circuit board to connect it to a PC terminal and another to daisy chain further boards.

it displayed the incoming chars and forwarded the old one to the next module if any.