YanKleber
Posts: 19
Joined: Sun Nov 11, 2018 5:45 pm

RP3b GPIO pin for card LED?

Mon Dec 10, 2018 1:03 am

There is any GPIO pin that might be used to hook a LED to show activity when the card is accessed?

Thanks!

:)

Andyroo
Posts: 790
Joined: Sat Jun 16, 2018 12:49 am

Re: RP3b GPIO pin for card LED?

Mon Dec 10, 2018 2:04 am

I do not think there is a hardware way to do it but you could look at the inotify function of the Linux kernel and create a little routine to blink a LED.

Try a Google for inotify-tools as a package.
Need Pi spray - these things are breeding in my house...

User avatar
Imperf3kt
Posts: 1625
Joined: Tue Jun 20, 2017 12:16 am
Location: Australia

Re: RP3b GPIO pin for card LED?

Mon Dec 10, 2018 2:22 am

YanKleber wrote:
Mon Dec 10, 2018 1:03 am
There is any GPIO pin that might be used to hook a LED to show activity when the card is accessed?

Thanks!

:)
Which card. The micro SD card?
Stop plugging your fan directly into the GPIO 5v
https://www.electronics-tutorials.ws/power/transient-suppression.html


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