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idrougge · 02 July 2017, 01:27

50 mA is more than enough. But LEDs usually don't run off 5 V, so you need that resistor.

02 July 2017, 01:27	#19
idrougge Registered User Join Date: Sep 2007 Location: Stockholm Posts: 4,342	50 mA is more than enough. But LEDs usually don't run off 5 V, so you need that resistor.