All chip manufacturers are alike in this respect, unfortunately. That whole industry believes that they thrive on secrecy and that simply properly speccing their hardware would already be a massive competitive risk.
What kind of comments did you expect other than the one that was borderline racist with plausible deniability? What's a good conversation in this thread?
If you replace the Teensy 4.x it would have to be something very close to the same pinout, foot print, cost and features otherwise it would just be a new product. Ideally you would find a way to source the Teensy directly bypassing Sparkfun.
Yes, obviously, but they don't make the chips, so can't you just source the exact same chip, make thing pin compatible and call it a day? Then you'd have a drop in replacement, any changes you make will cause disruption for people downstream.
The one thing I know is that for threads such as this one it is best to ignore all of the stuff from accounts made just for the purpose of participating in the thread.
What I really loved about the talk is that you got a good insight into the actual complexities of manufacturing and drew all the right conclusions from it, rather than to throw your hands up and ordering stuff from China after all.
Friends of mine - with a bit more practical experience - are doing something similar, they realize that if there ever is a real demand for their product it might be at a time when the cheap alternatives simply are no longer available and have set up from day #1 to do everything in Europe. They are - like you - quite talented but the difference is that they have access to a lot more funding and if they need a particular machine they will simply go get it rather than to make their own.
You are resource constrained and that brings out a lot of creativity, which in the longer term will turn into a competitive advantage.
Neat. If you want to make it more practically useful you will need to include some kind of magnetic compensation map. That's one of the reason navigation apps usually are a bit larger, they require a lot of data to function well world wide. Best of luck with this, it looks very promising!
Thanks! Currently, MBCompass can show both magnetic north using Android’s sensor fusion and true north (based on WGS84 geodetic coordinates).
Adding a magnetic compensation map sounds like a great fit for improving global accuracy without changing the app’s core goals. Thanks for the suggestion.
I'm in the process of designing some electronics bricks for one of my kids so he can take a schematic, given all of the parts then place the bricks on a baseplate and connect them with the circuit represented as close as possible. It's an interesting project, the biggest challenge I seem to have is to source the spring terminals, I have yet to find a place that will sell them separately.
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