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by KulZAus
Mon Sep 14, 2015 3:11 pm
Forum: Troubleshooting
Topic: 2N2222 driven LED strip
Replies: 10
Views: 3442

Re: 2N2222 driven LED strip

So I've got two types of LEDs i want to run. They both behave in similiar way. The first are the previously described some no-name chinese red LEDs, but i've also have some of these yellow ones. Unfortunately datasheet is in Polish. http://www.powerled.pl/pliki/Powerled_LC_listwa_karta.pdf According...
by KulZAus
Sat Sep 12, 2015 9:16 am
Forum: Troubleshooting
Topic: 2N2222 driven LED strip
Replies: 10
Views: 3442

Re: 2N2222 driven LED strip

Thanks for a fast answer. So I took out one LED, and even went down to three. The result was still the same. With no other things coming up to my mind I tried to change the PSU to PC one and it worked, the LEDs are nice and bright, but now they're ON all the time even if the GPIO is in the LOW state...
by KulZAus
Sat Sep 12, 2015 7:50 am
Forum: Troubleshooting
Topic: 2N2222 driven LED strip
Replies: 10
Views: 3442

2N2222 driven LED strip

Hi, I'm trying to power a 12 V LED strip (6 LEDs) with 2N2222 transistor connected to my Pi's GPIO pin. The problem I've ran into is when I power the transistor's base the LED lights very dimmly. The strip itself connected directly to power supply uses about 50 mA. scheme.jpg What can be the source ...

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