Drawing on a 7×5 LED matrix with Arduino in C

In my component drawers I have a LTP-7357AG, which is a matrix of 35 green LEDs conveniently packaged in a 12-pin display. I wanted to play with it so I began to hook it with my Arduino Uno. This post is part of a series about programming Arduino applications in C. I’m going to show the results first, and then give an explanation of what I did and why. The following image shows that the Arduino is capable o ...

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