Top 10 MCU Selection Mistakes That Cost You in the LONG RUN

Published on by John Teel


A lot of hardware products fail because one early decision pushed everything else in the wrong direction.

In my experience, the one decision that causes the most consequences is choosing the microcontroller.

Once that part is locked in, everything … read more

10 Traps That Stall Hardware Products Before Launch

Published on by John Teel


You’ve spent months, maybe even years, working on your product. You’ve poured in time, money and way more effort than most people will ever realize.

But right when you’re about to launch, everything seems to come to a standstill. … read more

Fastest Microcontroller (MCU) vs Cheapest Microprocessor (MPU)

Published on by John Teel


Most people think microcontrollers are simple, cheap, and slow… and microprocessors are complex, expensive, and fast.

In this video I’m flipping that upside down. Because I’m comparing a two-dollar Linux chip against a twenty-dollar microcontroller that’s literally twice as … read more

10 PCB Design Mistakes That Cause Thermal Failures

Published on by John Teel


Thermal issues are one of the biggest killers of electronic products.

Heat degrades components, shortens product lifespan, and can even create dangerous fire situations.

So in this video, I’ll show you 10 common PCB design mistakes that cause thermal … read more

10 Hidden Costs To Scaling Up Your Hardware Product

Published on by John Teel


Scaling up an electronic product is where reality really sets in.

Prototyping is fun and exciting, because you get something working and it feels like real progress.

But once you try to move from a handful of units to … read more

12 Tests That Reveal If Your Product Will FAIL

Published on by John Teel


When your product works perfectly on your bench, it’s easy to assume it’ll keep working once people start using it.

But unless you actually test for reliability, you’re making a pretty risky assumption.

A working prototype doesn’t tell you … read more

Top 5 Most Powerful Microcontrollers in 2026

Published on by John Teel


You don’t always need a full-blown microprocessor to build something advanced.

Some of today’s microcontrollers are insanely powerful.

Fast enough to handle AI, high-end graphics, streaming audio, but still simple enough to run bare-metal code.

And when I say … read more

How Long It Really Takes to Certify Your Product

Published on by John Teel


Certification of a new electronic product feels overwhelming.

It’s expensive, it’s confusing, and it has the power to stall your launch for months.

Most entrepreneurs assume they need to handle certification right after their first prototype works, which means … read more

Certification Costs – What It Really Takes

Published on by John Teel


Certifications are one of the most confusing and stressful parts of developing a new product.

It feels overwhelming because you don’t know what certifications your product even needs, you don’t know when in the process you need them, and … read more

10 PCB Design Mistakes That Damage Product Reliability

Published on by John Teel


Your PCB design can look flawless in CAD.

But if it can’t survive once customers start using it, then you don’t have a product, you have a prototype.

And a prototype that fails after shipping isn’t just annoying.

It’s … read more

9 PCB Design Mistakes That Fail FCC/CE Certification

Published on by John Teel

Failing FCC or CE emissions testing can kill your product before it ever ships.

And it happens far more often than you’d think.

What makes this failure so devastating is that it’s not something you can patch or fix with … read more

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