Raspberry Pi 3 Circuit with Power button+LED+fan that switches off when shutdown  

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nickace
(@nickace)
New Member
Joined:1 month  ago
Posts: 2
17/12/2017 6:00 pm  

Hi Guys,

Wanted to share this.

I developed a circuit with a fan that switches off using a transister.

The circuit has Power button & led  (many guides online for these)

Fan uses a 5v pin however I wanted the fan nto go off whn the pi was shutdown so i did the following;

The Led uses the serial interface to lights up (which turns off with shutdown unlike the 5v pins)  so i have a transister monitoring the LED circuit and only connecting power to the Fan when active.   Works perfectly.


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Robin
(@robin)
Member Admin
Joined:8 months  ago
Posts: 3
17/12/2017 8:41 pm  

Great post! Can't wait to see what else you have!


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