When you design a PCB with built in LEDs to run a 3.7 volts. But the LEDs work with 3.3V so your first LED just dramatically explodes! Lol
Took me a moment to even find the first LED, or rather where it should be! heh!
Are you sure it’s the voltage? I’ve been using a lot of APA102s with single cell li-ion batteries (4.2v to 2.75v) recently and found them to be very forgiving… (I realise that these are WS2812Bs or similar though)
theyre SK6812 , after hours of troubleshooting i found that the LEDs arent even connected to power at all! not my first mistake i did the same thing with a microphone in the past lol. Apparently the cause for it blowing out, literally, was a short, when your components are that small shorts are pretty common. oh well, it was only a prototype anyways, fixing to make a connection between the first LED and the regulated power supply and make sure there are no more surprises lol
how does the board look overall though? hoping to give a working one to my sister tomorrow for valentines
well i put a new one together but only 2 of them are lighting up, atleast i know it works now lol
The board looks great 
I assume that you use an oven to solder them? Which one? Or did you make it?
Thanx man! And yeah i definitely need to redesign most of the connections to the LEDs. I did not realize at the time how big the pads under the 3535 LEDs were. Turns out thats where all my shorts are happening. So stay tuned for Rev2 its definitely happening lol. And actually i use a skillet on my electric stove. You would not believe the wonders that thing does. I dont have to worry about melting parts such as LEDs because the heat radiates up to the connections. Ive only had 1 incident where the silkscreen started melting but thats cuz i left it on too long lol
I only accounted for the 4 little legs on each LED so i threw a bunch of vias under every single LED to save space. Yeah killer mistake lol. Literally i lost over 60 LEDs today lol
@Jeremy_Spencer you ever try using a skillet before?
No, never. I’ve got an oven I’m about to modify
You can specify that vias under components are " Fully Tented" with solder mask to minimise the potential for shorts. This is a must for all BGAs. But is also helpful for vias under any components.
@Jimmy_Edwards Huh. Ive never actually though about that one. Mostly cuz during prototyping a usually use the vias to connect wires between components. Like if i need to skip one of the LED i just bypass it with wires. But that is a very good idea! Thank you for pointing that one out!
@Jimmy_Edwards Here you can see where i added a wire between 2 vias. Somehow i completely overlooked that connection in my schematic.
missing/deleted image from Google+
Yeah it is always good to use a via large enough to fit 30AWG jumper wire into. Everyone needs to run a jumper wire or two as the design evolves.
Oh and you only need to tent vias on the component side. So you can get at them from the solder side.
Ahhhh. Ok that makes more sense lol. Well ill keep you guys posted with Rev2
Would any of you kind gentlemen mind looking over my design files? I want to make sure i didnt overlook anything this time
@Jeremy_Spencer Mericana sales9@uniqueentech.com, Any one need LED Strips let m e know! Good quality, good price