I am setting up an Arduino Pro Mini 5v (https://www.amazon.com/gp/product/B015MGHLNA/ref=oh_aui_search_detailpage?ie=UTF8&psc=1) to control a strip of WS2811 RGB LED lights (https://www.amazon.com/gp/product/B01CNL6K52/ref=oh_aui_search_detailpage?ie=UTF8&psc=1).
The power supply is 12v 8A (https://www.amazon.com/gp/product/B01MZGNJA5/ref=oh_aui_search_detailpage?ie=UTF8&psc=1), the lights are 12v, and I thought the Arduino could handle 12v on the RAW input. I think I was wrong. After connecting it, the part circled in the picture below popped and smoked and my heart sank. If I use my continuity meter across the circled piece, it beeps. If I test that same piece on a different board, it does not beep.
If I put a 7808 voltage regulator in between the 12V power supply and the Arduino, will that fix my problem? Is there another, better solution? This whole this is going to be part of a chandelier, so I really need to be able to make it work off the single 12v power supply.
Is my other board totally shot, or will it work with just regular 5v input?
If you need more information, please let me know. Thank you