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This is very cool. Whenever I see things like this I feel it's really a lot of efforts to reach such sophisticated level. How does one get good with 1) embedded programming, 2) hardware design, and 3) 3d print without proper training?

That's why I usually respect hardware people a bit more.

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By trying, also sometimes called self-teaching. If you are interested in something, you just search for information on how to do something and try until you succeed. There are many failures along the way, but in the end, typically you have something working, then next version is working even better.

Indeed. I guess I'm paralyzed and cannot move on somehow.

There are so many good resources that weren't available when I was learning. Online, and a good in-person mentor helps too.

Limor and crew does a great job: https://learn.adafruit.com Or start with the Arduino ecosystem: https://learn.sparkfun.com/tutorials/what-is-an-arduino/all

I have accidentally joined to a Discord server which folks interested in programming. They're trying and poking around in an informed manner. These guys professional programmers (or aspire to be), and interacting them somehow broke my chains, and I'm learning and improving like the old days.

So, interacting with interested parties really helps.

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