Dot matrix display 5x7 is the most normal dot matrix. It is widely
used to show information. We can see in elevator to show up and
down.Nowadays RGB dot matrix display can show colorful video, too.
It is believed that dot matrix display may replace LCD in many
areas in the future because of its advantages. Part No. Series:
NFM-7571 NFM-12571 NFM-12572 NFM-20571 NFM-30571 and NFM-40571. If
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