Hi everyone,
Only starting out and was hoping someone could help. I have everything working (including code) on the attached image, but I would like to add a second LED bar graph. Can someone help with the wiring?
Kind Regards,
Steven
Look up 74HC595 shiift register. Here is an example of using the 74HC595.
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UNO have not enough pins.
use Arduino Pro Mini for additional A6/A7 or other board
or some sort of pin extender.
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