I was wanting to use the MK-R for a project of mine but after consulting the datasheet I burned up my first 10$ LED and wasn't sure why.
I had an LDO providing 11.5V anode to cathode via gator clips. I ran the anode line through my multi-meter and verified it was pushing 450mA before the LED smoked and burned out (stayed lit for about 15 sec).I was trying to disconnect the clips real quick as I saw the smoke it was indeed burning extremely hot. I'm wondering what I am missing here from the data sheet as these LED's should take 1250mA with a Vf of up to 14V and dissipate 15W of power. Am I not understanding something in datasheet correct?