Set 202014

I have been asked by my company to create a system for production monitoring.
A very important component of this system will be a large LED panel showing production status.
Unfortunately I discoverd such components (for example the excellent Alphabrite panels) are very expensive: the mean quotation for a 2 line-21 chars ethernet controllable display is around 3000 USD!.
So I tought i could save several thousands euros of my budget with a little DIY.
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