Hey guys, Just a quick warning: This will seem like a very basic question but I am really having a hard time understanding how to remedy it. I have 14 LEDs that have the following specs: Ultraviolet LEDs 5mm High Brightness FW Current: 20mA FQ Supply: 3.3V (typical), 4.0V (max) I want each LED …

Driving multiple LEDs with the Arudino and External Battery Pack

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