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Dan Halbert

@danhalbert.org.bsky.social

57 Followers  |  198 Following  |  11 Posts  |  Joined: 20.10.2023  |  1.9362

Latest posts by danhalbert.org on Bluesky

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Download PyCharm: The Python IDE for data science and web development by JetBrains Download the latest version of PyCharm for Windows, macOS or Linux.

It says "Free Forever, plus one month of Pro included". www.jetbrains.com/pycharm/down.... "now with Jupyter support included. Also note www.jetbrains.com/academy/stud... (free).

30.08.2025 17:40 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
The Wrong Box (1966) ORIGINAL TRAILER [HD 1080p]
YouTube video by HD Retro Trailers The Wrong Box (1966) ORIGINAL TRAILER [HD 1080p]

The whole plot of this hilarious film revolves around a tontine.
www.youtube.com/watch?v=GR-5...

22.06.2025 21:41 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 2    πŸ“Œ 0

I tend to hold the flat of the iron againt the pin because it has more thermal mass than the board pad. If you are using lead-free solder, a flux pen might make things go faster, but good quality solder with flux might be fine. 2/2

15.05.2025 15:57 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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How To Solder Headers Headers! Male, female, stacking, specialty -- learn how they work and get tips for soldering them perfectly into your board the first time. Also learn what to do if you make mistakes with header assem...

learn.adafruit.com/how-to-solde... if you have not already seen it. Use a high-quality temperature controlled iron like a Hakko stand iron and set the temperature high enough. Use an adequate-size tip, like a chisel tip. Press firmly for good head transfer. 1/2

15.05.2025 15:56 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I2C is a lot slower than SPI, so it's not really practical for the TFT displays. They are mostly driven with SPI or even higher bandwidth connections.

15.05.2025 14:05 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

If you power the strip at 3.3V, no level-shifting problem.

22.01.2025 03:55 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Adafruit NeoPixel Überguide NeoPixels are β€œintelligent” full-color RGB LEDs that can be controlled and chained from a single microcontroller pin. This guide presents an overview of NeoPixel products, along with tips for building...

3.3V data signals often work, but adding a level shifter is best for reliability. But try it. If you power the strip at 3.3V (only do for short strips to avoid overloading the 3.3V regulator on the board).

learn.adafruit.com/adafruit-neo... I think you know about.

22.01.2025 03:51 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

"be aware there is usually a strict data-flow direction": delete "usually". "signal can degrade over long chains": not really, signal is regenerated by each NeoPixel. But *power* can sag over a long chain. Good to power a long strip at both ends (both power and ground), and maybe in the middle too.

22.01.2025 03:47 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Great summary!

NeoPixels are REALLY bright. Encourage lower brightness values to save power and save eye discomfort.

22.01.2025 03:46 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

(I originally saw this post in the thread out of context and thought that, you, the reporter, personally asked to speak to the PM. You might want to mark each post clearly as a quotation.)

03.06.2024 15:11 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

The white will show damage or dirt easily. The black will show fingerprints. Sunburst or transparent.

21.03.2024 01:00 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

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