Ok, thanks for the explanation, but not everything is rosy. There must also be disadvantages,

this has been very helpful information 🙂, i also have a hardware based startup together with some friends we are currently pursuing

9:16 - whole section about ground planes and pcb stack-up is misleading and simply wrong wrong. Splitting ground planes is almost never a good choice.

The worst thing in my opinion is the poor debugging method for esp32. Comparing it to stm32 it gets terribly behind. Espressif should care about it. Imagine a world with stm32 + wifi, that would be a pain for all those esp32 boards

Great video! One question about the sales test: do I have to declare these products as part of a test? These sales test units won't have a proper FCC ID, and so in theory could be cited by the FCC, correct? Is there some sort of an official declaration or paperwork that should be shipped with the product? Thx!

Hi , in my project i need to charge my device that consumes 60maH . i have few questions : 1) Will the battery charger BQ24092 supply 1 A till it gets exhausted ? Secondly , could i recharge the THE BATTERY once it get over using the circuit above ? . My device works as a watch , so just asking . I am new to electrical field so pardon for my silly doubts .

I have been thinking about a product which does something never done before. Not because there is not a market for it but because no one has thought about it yet. It's niche but enough to sustain decent sale. I know this market pretty well. The problem is I'm not an electronics engineer but a software engineer with an mba. I have been collecting information and your videos have been very helpful! Thank you!

Hello ! I wonder when should the product be patented ? Great video ! thanks for the help !

fyi, a solo engineer built a cell phone brand in 2013. Fairphone. It is an opensource cellphone platform.

Open ended conversations are hard. Learning to start them and engage with the other party is worth getter better at, even if not doing development. Shut up, play dumb and ask questions and pretty soon you'll know where you were dumb and where you aren't. Great video!

Your videos are really helpful because you focus on the crucial aspects of risk management in design, production, and shipping. This advice is invaluable for startups looking to adapt their projects to minimal viable standards, boosting their chances of success. Great work!

That's actually a really good list! Just made me change a few things in our business plan.

DopTrace, its cool ^)

Great video. What about design patenting?

Easyeda?

0:00. What about car battery?

Thanks John, Most appreciated. It would speed things along for us if you also posted the component mfr part numbers. Excellent video.

Hi, I'm new to product development, and your channel always give me hope! I understand that I can use a UL-certified ACDC adapter for low voltage DC products, but do I still need UL certification, etc. for small DC components like 5-24V motors actually used for the product itself?

Excellent video 😊

Worth mentioning that the STM32G4 series MCUs are marketed as mixed-signal MCUs (analog peripherals + DSP instructions). In my opinion it doesn’t really fit the „budget“ category very well, this description is more valid for the STM32G0 series specifically.

Thanks mentor, glad you are doing this

Love your tips, thank you for your videos. I developed a few products, for internal use in a company, as an employee, I'm now going solo and I see that I can develop things for more than just one company. I'm ooking to sell it online so I can reach more countries, but everytime I'm thinking if its worth it I always come to the conclusion "as soon as this is online what stops China from copying it", back in my old job we didn't sell so there was no copying, but they are pretty simple to develop and code, a look inside and its easy to copy, specially because I believe in developing things that can be repaired some decades in the future, I will only keep the code closed source but will alow the download and replacement of the binaries (and also the behavior is easy to mimic and do the code from scratch). Kinda lost on this, right now I'm just yoloing it and burning throw my savings just for my personal satisfaction of saying in the future "I did try it, dont care if it failed and I'm back to a office job".

Thank you very much. I am in the middle of this journey right now. I just launched a beta version of my product in a small market. And I think that was a good idea. I'm getting a lot of feedback, but also a good amount of orders to fulfill. Your tips on pricing are spot on. I figured I was all set for everything, but I'm still going to sell my first batch for almost no profit because things change, suppliers don't deliver, etc.

Great video. I am working on my second product after a lackluster first product. But the customer base for #2 is municipal clients. But the product is a completely new solution with no competition. Of course I feel like it's the greatest product in the world but is it worth pursuing? I love to be able to have a talk with you if you can.

Well. What I'm prototyping is definitely a niche. It has a known problem and the "competition" currently has a monopoly and charges $14k where I estimate manufacturing costs to be around $2k so plenty of room to compete on price. I put competition in "" because they do size a and I will be doing size b. No one is doing size b but people want size b.

Great list for forcing us enginerds to embrace the business / marketing parts. Yes, plastic parts are hell - simpler tools, smaller parts and getting it right the first time is the fastest / cheapest but it is still the slowest and most expensive part to iterate changes on. Software is the easiest and it distorts expectations!

I'm loving your videos. Thanks for all you do!

Really good points, thank you. One question: How do you do design review? In a bigger company with more than one team it is easy, just ask an other team. But what is your recommendation for very small companies?

Thank you! Great information, however, I'm surprised that you didn't discuss the issue of patents. Researching if someone has already patented an idea is time consuming, and going through the patent process can be expensive. Should I attempt to produce and sell a new creation without knowing if someone has already patented the idea?

EXCELLENT EXCELLENT EXCELLENT. Thank You Sir

Frustration? Never met CR-8000.😅

Is there any particular advantage in getting an ESP32 C6 instead of H2 and vice versa? I'll be needing no Wifi and only bluetooth, so which one do you recommend? Also between the WROOM and MINI module, which one? Also I noticed the H2 DevKit is more expensive than C6 DevKit on DigiKey because of low supply, I suppose? So which one can I rely on more when I start mass production? Edit: Also when you go to order samples -- it says N4, N2 or H4 at the end of the module name -- what is that supposed to mean?

In the diy drone community, we are ruled by the F1, F4 and F7 processors. My remote has an F1, and the video receiver module and flight controller have an F4. Pilots have been flocking to the F7 due to the extra UARTs for connecting GPS modules and all kinds of other goodies. I'm the kind who cares less about saving cost if it means sacrificing performance (for personal projects). You also wouldn't want me anywhere near the cost annalists.

power consumption , size , price and availability are the factors , you are considering. so Arduino can't be used for mass production. Since I am using AVR for my products and I am designing my own "low end application" specific board. They reason is lot of support and libraries are available online. Is the any other technical issue with AVR microcontrollers ? like do the are sensitive to noise ? Do the are good or bad with inductive load ? EMI or EMC issues ?

What a great youtube channel. Cheers from Argentina 👍

Great Info. Thanks. I struggled early on with specifying/sourcing an STM32 part. I started the design with an STM32F4 that at the time seemed readily available at DigiKey. By the time we wanted to go into production, the particular F4 package size I had selected was virtually impossible to get. It was during the COVID years so it wasn't a complete surprise. (We are a low volume using, about 500pcs/year.) I had to redesign the hardware for a different package and in the process ended up going to the F7 because it was easier to get. With our low volume, the extra cost wasn't really an issue. (I am lucky I don't have to chase pennies in my hardware designs.) @PredictableDesigns I think an interesting topic for a video is how to select a microcontroller, or other components, that are readily available. Just because the manufacturer lists it as "in production" doesn't necessarily mean it is easy to get your hands on. I typically will search for the component on DigiKey and Mouser and if it is a normally stocked item and has decent inventory levels I will move forward with it in my design. I would be interested if there are other, or better ways to determine long term availability of a part.

Great useful informations, Sir! Thank you very much!

In USA ;) In EU even single unit other than engeenering sample or dev-tool need to have CE declaration - you declare EMI and EMC are in the norms 🤷‍♂️

The best STM32 is ArteryTech AT32 because they're more democratic to their customers.

Can you make more videos on the microprocessor topic.

Which STM32 MCU family would you recommend for 3-phase inverter or motor control?

Thanks for the lot of useful informations. Actually there is also U0 out now.

Thank you! Great Video!

Very useful video, THX.

maybe a rookie suggestion but can you make a video were to teach how to develop a prototype development board with any choice of stm32 chip

Nanoframework. C# on a microcontroller. It’s the coolest thing I’ve seen yet. Works on a variety of STM32s and ESP32s.

Thanks for the information.

Awesome Videos John, is there a possibility for me to join your team? If there's any way to do that please point me in that direction, I feel like I can learn a lot being on your team.

These are all good points. They are mistakes that I was stuck learning the hard way.....over many years. For those that benefit from this, take a moment to appreciate that a video like this saves you a LOT of time and therefore a LOT of money. Enjoy your success. 😃

please link us to those companies