I am using arduino due. And I have a LED which driven by 12 voltage. So I connect led to my pin 10 and add a 1K resistance to protect my board. [image] And it seems work well. I can use digitalWrite to control my led. But I am a little worry about it. Does it will hurt my board? Is it still ok to…

Can I connect pins to high voltage?

erow October 14, 2017, 8:01am 3

Cause It's a colorful led series. It need voltage over 12V.

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