A dot matrix display is very popular among novice electronics students or hobbyists. They are widely available today with a very low cost. Using a dot matrix module with an Arduino is very common since they are very low cost and rich of resources.
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| Finished PCB Testing with an Arduino Uno |
When I was a student a dot matrix module were expensive and it's difficult to find locally. So I bought some dot matrix displays, SN74HC595 and transistor driver to interface to a micro-controller.
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| Finished Hand-made PCBA |
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| Finished Hand-made PCBA |
Making this dot matrix display by hands is very busy. I had to etch, clean, drill holes and assembly all parts on the PCB. It took a whole day to complete.
For more details about this PCB please see this post.
