25/06/2025
๐๐ก๐ "๐๐ญ ๐๐จ๐ซ๐ค๐ฌโฆ ๐๐ง๐ญ๐ข๐ฅ ๐๐ญ ๐๐จ๐๐ฌ๐งโ๐ญ" ๐๐ซ๐จ๐๐ฅ๐๐ฆ ๐ข๐ง ๐๐๐ฌ๐๐๐ซ๐๐ก ๐๐๐
When your perfect new creation betrays you:
You spent weeks designing it. You tested it a dozen times. Built to solve a very specific research problem, it ran flawlessly on the bench. The data looked clean, the signals were stable, and you finally breathed a sigh of relief.
Then, halfway through your most important experimentโฆ it failed. No warning. No smoke. No obvious reason. Just silence from the device that worked perfectly yesterday.
Why Does This Happen? Here are some common reasons:
1 - ๐๐ก๐ ๐๐ก๐๐ง๐ญ๐จ๐ฆ ๐๐ฅ๐ข๐ญ๐๐ก
Loose wires, cold solder joints, or power fluctuations can cause intermittent failures. What worked on your bench might fail in the field due to vibration, humidity, or temperature changes.
2 - ๐๐จ๐๐ญ๐ฐ๐๐ซ๐ ๐๐ซ๐๐ฆ๐ฅ๐ข๐ง๐ฌ
A firmware bug might only trigger under rare conditions (e.g., after 72 hours of logging). Your code seemed fineโuntil it wasnโt.
3 - ๐๐ก๐ "๐๐ง๐ฏ๐ข๐ฌ๐ข๐๐ฅ๐" ๐๐จ๐ข๐ฌ๐
Electrical interference (from motors, Wi-Fi, or even fluorescent lights) can corrupt signals. Your setup was noise-freeโฆ until you moved it next to that incubator.
4 - ๐๐๐ ๐ ๐๐๐ฌ๐๐ฌ
You tested for all the scenarios you could think of, but there is always something lurking out there to throw you a curve ball. A combination of seemingly insignificant factors that when combined provide a scenario you never considered.
5 - ๐๐ก๐ ๐๐ฎ๐ฆ๐๐ง ๐
๐๐๐ญ๐จ๐ซ
Maybe a lab mate borrowed your device, plugged it in wrong, and didnโt tell you. Or you forgot to recalibrate after swapping a component.
๐๐ก๐ ๐๐๐๐ฅ ๐๐จ๐ฌ๐ญ ๐จ๐ ๐๐๐
Lost time: Repeating experiments wastes weeks.
Lost trust: If your tools are unreliable, colleagues (and reviewers) question your data.
Lost sanity: Debugging without a clear cause is maddening.
Equipment: For effective testing and debugging, expensive equipment is needed and expertise
Consider these next time you are wrestling with the build vs buy decision
