In June 2015 I offered an Arduino Beginner Seminar. One of the students questions was if we could output information that is stored in an array to a LED matrix. Here is the example code that I promised.

Today I also spent some time soldering SMT components. I ordered the LED matrix as a kit which I believe consists of about 100 parts and requires approximately 800 solder connections. Don't worry, it does not take as much time as it sounds. Given everything works on the first attempt the whole thing is completed in about 90 minutes.

Now I connected it to my Arduino Uno R3.

My fist experiment was to use the LED matrix for counting:

Another experiment is a ticker application. This code uses a timer to write the information to the LED matrix. The Arduino main loop updates the content which in this case means to shift the sentence to the left.

Best, Mark

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