Electronics > Beginners
Dealing with failure, loss of time when things blow out.
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Websteria:
So I’ve been attempting to build this stupid rainbow clock kit. I just soldered the processor in, super careful not to overheat, but had a few shorts when I first turned it on. It acted odd so I turned it off and fixed the shorts. Apparently that act blew out the processor because all the leds are receiving straight 5V and are blown out. This means I have to start on a new one for the fourth time. I am dedicated to this but this design makes me concerned. One small error means countless hours of work. I’m sure this happens to large companies right now too but I feel really kind of down on myself about it.

I’m sure some of you have gone through this. Tell me your stories.

Incidentally my next project will not have a qfn44.
TheHolyHorse:
I'm working on a little PSU project (like everyone else) and it has a MCU in a QFP48. I soldered it like a month ago (first time soldering smd stuff) and that worked out just fine. But after soldering everything I realized I had made a mistake with the layout. I had spent so much time on the schematic and also the layout and I felt really good about it, only to get a punch in the face with an epic fail because I missed ONE LINE of text in the datasheet. |O |O

So you're not alone beginners make mistakes, hell even experienced people mess up from time to time. Don't be afraid of making mistakes, it really sucks when it happens but in the end you're just learning. Mistakes are the best way to learn so don't be afraid keep working and you'll come out just fine with a working thing. :)
Websteria:
I use a flat round tip for my drag soldering. I’ve had issues with bridges that get REALLY hard and require much higher temps when I’ve used hot air and solder pasts.  I also am not quite as comfortable with it.

Also, with this being a kit don’t you think they would’ve put protection in for this? Seems like bad Chinese design sadly.
TheHolyHorse:
Easiest way to deal with solder bridges as far as my experience goes has been solder wick.
fourfathom:
Use a variable power supply when powering up a new board.  Start at 0V and slowly increase, watching the current as you go.  Current is usually needed to blow things up, so you can catch a lot of problems before they become catastrophic.
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