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Tim Hanewich @TimHanewich
Joined April 2014
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Tim Hanewich@TimHanewich
26 Nov 2025
I developed a quadcopter with a custom flight controller, programmed in Python (@micropython), that can efficiently run on a $4 @Raspberry_Pi Pico microcontroller! Check it out: github.com/TimHanewich/Centa…
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I just published "The Understanding Gap" AI lets us produce far beyond what we understand. As we use agents more and more, the real skill becomes knowing: - What to understand - How deeply to understand - When NOT to outsource your thinking Read more: timhanewich.medium.com/the-u…

The Understanding Gap

So much velocity, so little understanding.

timhanewich.medium.com
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Good flying today 😊
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Blast off
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Successful day today! The ferrite beads capacitors certainly seemed to have helped, but not as much as I had hoped. Much more stable Rx now, but still rocky at certain moments. Just one of the flights from today. Enjoy! github.com/TimHanewich/centa…
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Let's fly! 🤞
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From 8-bit to 16-bit checksum. This will vastly lower chances of accident caused by random pass. github.com/TimHanewich/centa…
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Installing ferrite beads and two capacitors on the HC-12's VCC and GND lines seems to have significantly reduced the noise emitting from the SMA port antenna caused by EMI from the ESC's. github.com/TimHanewich/centa…
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We're back.
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Circuits restored
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Today's work: repair burnout damage This was caused in a high-load test I ran a couple weeks back. Too much current I guess! 🫣
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Tim Hanewich retweeted
staysaasy
@staysaasy
Feb 18
“What will software engineers do now?” Software engineers have been required to learn new skills every single year of their career. More than literally any other career in existence, software engineering has required adaptability. So even if software engineering as we know it ceases to exist, engineers will just keep doing what they always have done - they’ll learn whatever is required and will add value.
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Could this really be?
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My best guess as of now: It was a VERY foggy day. Odd for where I live. Perhaps moisture built up in between the HC-12 pins, caused a short. This caused HC-12 to overload with random bytes though they weren't actually coming from antenna! 🧵
Tim Hanewich@TimHanewich
Feb 14
Today was a tough day. Absolutely bewildered after the surprise problem today... Took the drone to the field today to fly for the first time with the new antenna mast. 🧵
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And the drone was not able to process new actual command data for several seconds because it was overwhelmed processing a backlog of random bytes it has to process due to that short.
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That - or the conditions in my test here at home were just better. Maybe the metal mesh crate i strapped it to served as a ground plane and helped it. These are my best guesses right now.
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Today was a tough day. Absolutely bewildered after the surprise problem today... Took the drone to the field today to fly for the first time with the new antenna mast. 🧵
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Maybe it was a poorly insulated new uf.l to SMA that was allowing in too much EMI from external wires? Maybe the new uf.l to SMA was broken? Maybe going from a 6 inch to 12 inch u.fl to SMA was too long? (weakens signal) But why was any of this not reproducible in my tests?
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If anyone has any thoughts or ideas, I'd be all ears! Thanks for the time in reading this. I hope to get this back in the air eventually but I have no idea if I should ignore this as a freak unexplained incident since all SEEMS fine or get to the bottom of it.
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