9 ESP32 Design Mistakes That Kill Your Product

Published on by John Teel

The ESP32 looks like the perfect chip.

You get Wi-Fi, Bluetooth, dual-core processing, plenty of memory and peripherals… and it’s dirt cheap.

It’s also everywhere — from DIY maker projects to full-scale commercial products. It’s one of the most popular … read more

8 PCB Design Mistakes That Kill Wireless Performance

Published on by John Teel

Wireless is one of those things that makes or breaks a product. Your PCB can be designed perfectly for functionality, but if the wireless doesn’t work reliably, your product is dead in the water.

So in this article, I’m going … read more

6 PCB Design Mistakes That Can Destroy Production

Published on by John Teel

Just because you’ve got a working prototype doesn’t mean your design is ready for production.

I saw this when I was a chip designer at Texas Instruments. A new engineer was bragging to me that his latest design worked perfectly … read more

7 PCB Design Mistakes That Will Fail Certifications

Published on by John Teel

Certification testing is already time-consuming and expensive, and that’s assuming you pass the first time.

But if your product fails, it can quickly spiral into redesigns, extra testing fees, and long delays.

I’ve seen plenty of designs that were fully … read more

What It REALLY Costs to Launch an Electronic Product

Published on by John Teel

Nearly everyone drastically underestimates the cost required to develop, scale, and manufacture a new electronic product.

This is one of the main reasons so many hardware startups ultimately fail.

Without knowing all of the various expenses, you’ll either run out … read more

How I Got Lost Searching for Investors!

Published on by John Teel

Read the previous part of my story about my product being on store shelves for the first time.

I had bootstrapped my product to being for sale on shelves in over a 100 retail stores!

My product was a miniature … read more

How to Select the Best STM32 Microcontroller for Your Project

Published on by John Teel

The STM32 is a popular family of 32-bit microcontrollers from ST Microelectronics which are all based on ARM Cortex-M architectures.

But it’s a huge family that includes numerous variants.

In fact, Digikey shows 3,954 different STM32 microcontroller versions available!

This … read more

Game-Changing New Technology for Product Prototyping [YouTube]

Published on by John Teel

There’s a new technology that is a total game changer when it comes to developing and manufacturing a new product on a limited budget.

In fact, I’d call this new technology “Earth-shattering” for entrepreneurs, startups, and smaller companies developing a … read more

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