FakeGrayscaleLED : The failure that success.

After I tested with the real hardware ( VFD and ESP-01S) everything failed.
But I won’t give up. I moved to do the project with SCDV5542. It’s 5×5 led matrix 4 digit made by SIEMENS. I actually found this on eBay for $11 with free shipping from China.

So Check things out here ! link


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