Martin's Blog

Electronics, embedded firmware and software development from the perspective of 30 years in the industry.

Repairing a NAD 502 CD Player

My trusty NAD 502 CD Player, which I bought in 1996 from Richer Sounds, developed a fault a few months ago. The display went completely dark, so although it would play CDs perfectly, it was tricky to operate. Luckily it was not a failure of…

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Choosing A 'Scope For Embedded Use

As an embedded engineer, I need to be able to see signals on the board under test in a reliable and trustworthy way. It is important to see a few signals on the same display to be able to measure time differences between them, so…

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Repairing an IKEA drawer unit

This had broken due to the weight of the items in the drawers causing the brown plastic runners to break. It's not that easy to find replacement runners, and in any case, they are likely to break again if they are used with this much…

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Why Can't You Change It? It's Software isn't it?

Everyone expects software to be soft. To be easily changeable. At least more easily changeable than hardware. But that is not always the case, sometimes it is easier to redesign the hardware than the software, but why and what do we mean when we say…

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The Product Support Trap for Development Engineers

In all the companies I have worked, when the product development is finished it gets passed on to manufacturing and product support but the original developer retains ownership of the design. It's important that the product support department gets full training on how the product…

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Welcome

Welcome to my blog, "Commented Out", where I tell stories of product development, finding bugs, solving electronics design problems and generally looking at embedded firmware development and deployment. I've¬†gained experience across a few technologies in my career so far, but electronics and software is a…

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