Category Archives: fail

Ask Hackaday: Why Did Modular Smart Phones Fail?

Remember all the talk about modular smart phones? They sounded amazing! instead of upgrading your phone you would just upgrade the parts a bit like a computer but more simplistic. Well it seems modular phones are dead (video, embedded below) even after a lot of major phone manufacturers were jumping on the bandwagon. Even Google got on-board with Google Ara which was subsequently cancelled. LG released the G5 but it didn’t fare too well. The Moto Z from Motorola seemed to suffer from the same lack of interest. The buzz was there when the concept of these modular phones was …read more

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Posted in Ask Hackaday, cell phone, fail, google ara, Hackaday Columns, hardware, LG, modular cell phone, modular phone, modular smart phone, motorola, smart phone | Leave a comment

Fail of the Week: NASA Edition

There’s a reason we often use the phrase “It ain’t Rocket Science”. Because real rocket science IS difficult. It is dangerous and complicated, and a lot of things can and do go wrong, often with disastrous consequences. It is imperative that the lessons learned from past failures must be documented and disseminated to prevent future mishaps. This is much easier said than done. There’s a large number of agencies and laboratories working on multiple projects over long periods of time. Which is why NASA has set up NASA Lessons Learned — a central, online database of issues documented by contributors …read more

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Posted in capacitor failure, dc to dc conversion, DC/DC converter, fail, Fail of the Week, failure analysis, nasa, roundup | Leave a comment

OWL Insecure Internet of Energy Monitors

[Chet] bought an electricity monitor from OWL, specifically because it was open and easy to hack on at him within the confines of his home network. Yay! Unfortunately, it also appears to be easy to hack read outside of his home network too, due to what appears to be extraordinarily sloppy security practices.

The short version of the security vulnerability is that the OWL energy monitors seem to be sending out their data to servers at OWL, and this data is then accessible over plain HTTP (not HTTPS) and with the following API: http://beta.owlintuition.com/api/electricity/history_overview.php?user=&nowl=&clientdate=. Not so bad, right? They …read more

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Posted in fail, home hacks, IoT, security, security hacks | Leave a comment

Fail Of The Week: How I Killed The HiPot Tester

Have you ever wired up a piece of test equipment to a circuit or piece of equipment on your bench, only to have the dreaded magic smoke emerge when you apply power? [Steaky] did, and unfortunately for him the smoke was coming not from his circuit being tested but from a £2300 Clare H101 HiPot tester. His write-up details his search for the culprit, then looks at how the manufacturer might have protected the instrument.

[Steaky]’s employer uses the HiPot tester to check that adjacent circuits are adequately isolated from each other. A high voltage is put between the two …read more

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Posted in blue smoke, fail, Fail of the Week, hipot, magic smoke, short circuit | Leave a comment

I Think I Failed. Yes, I Failed.

Down the rabbit hole you go.

In my particular case I am testing a new output matching transformer design for an audio preamplifier and using one of my go to driver circuit designs. Very stable, and very reliable. Wack it together and off you go to test and measurement land without a care in the world. This particular transformer is designed to be driven with a  class A amplifier operating at 48 volts in a pro audio setting where you turn the knobs with your pinky in the air sort of thing. Extra points if you can find some sort …read more

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Posted in audiophile, digital audio hacks, distortion, fail, Featured, Original Art | Leave a comment