Why Your Soldering Iron Is the Problem, Not Your Skills

Why Your Soldering Iron Is the Problem, Not Your Skills You have watched the tutorials. You have practiced on scrap boards. Your solder joints look reasonable under magnification. But every time you power on your project, something behaves erratically. The microcontroller resets. The sensor readings drift. The LED flickers in a pattern that has nothing to do with your code. You assume it is a firmware bug. You spend three days adding debug statements. You refactor the code. You try different lib