Arduino
Question
I am using Arduino UNO and I am working on a project and I need more digital pins for my
LED’s, what to do?
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Answers ( 4 )
If your project requires a large number of digital pins you can use Arduino Mega, as it has more digital pins around 54.
If your project requires a large number of digital pins you can use Arduino Mega, as it has more digital pins around 54.
You can use shift registers, such as the 74HC595, to expand the number of output pins.
Analog Pins as Digital Pins: On an Arduino Uno, some of the analog pins can also be used as digital
pins.