Hi all :),i made a clock from an arduino nano, a RTC DS3231 module and a LED matrix. It´s an easy project which beginners can do to learn how to work with an arduino.RTC module: ebayLED matrix:ebay Hardware Aboth you can see the schematic, done with fritzing.The led matrix is controlled by MAX721...By: electronstogo
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from Instructables: exploring https://ift.tt/2J2PtiU
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