Hey there, I’m John Teel, an electronics design engineer, serial entrepreneur, blogger, and the founder of Predictable Designs.

Helping entrepreneurs, startups, makers, engineers, & small companies develop electronic hardware products in a predictable fashion is our goal.

We design a huge variety of electronics including functions such as Bluetooth, WiFi, cellular, GPS, NFC, accelerometers, gyroscopes, power harvesting, power management, battery charging, various sensors (pressure, temperature, etc.), transducers, motors, wireless charging, LCD displays, audio, and video.

If you are unsure about the requirements for your product please don’t hesitate to contact us.

NOTE: Whether you're a technical creator or a non-technical entrepreneur, if you're truly serious about developing a new electronic hardware product then download your free cheat sheet - 15 Steps to Develop Your New Electronic Hardware Product.

As a senior design engineer at Texas Instruments (TI) I designed dozens of successful electronic microchips. My designs can be found in all kinds of popular electronic devices including some from Apple and Intel. You almost certainly own several products with TI microchips inside, and most likely a product or two with one of my chip designs.

“John is one of the best design engineers I have ever met!”

Feng Luo

Lead Analog Design Engineer at Intersil, Inc.

Before starting Predictable Designs, I founded a hardware startup that developed and manufactured a consumer lighting device. The product was sold in over 500 retail locations across three countries. In addition to developing the product I also oversaw manufacturing in Asia, marketing, trade shows, logistics, financing, and sales. I had a team of over 20 sales representatives across the U.S. selling the product at one point.

NOTE: I’m available for contributing guest articles, participating in expert interviews, and providing quotes about electronics design and hardware entrepreneurship.

Check out recommendations for me from other engineers I’ve worked with as well as previous clients.

I’m originally from Indiana but have lived in Dallas, Texas; Canmore, Canada; Homer, Alaska and Kauai, Hawaii. I now live with my wife and son in beautifully red Sedona, Arizona.  Being an entrepreneur and freelance engineer has given me the opportunity to live in some pretty amazing places and to have some incredible experiences.

I love product development, technology and all things entrepreneurial.  But I’m also passionate about theoretical physics and astronomy.  My other interests include science history, natural history, and hiking.


I’m a huge fan of Albert Einstein.  His unparalleled genius, focus and passionate curiosity inspire me on a regular basis.

I have no special talents.  I am just passionately curious.
– Albert Einstein