Although this was published by NASA back in 2018, their lists, tips, photos and more pairing the mysteries of our universe with Halloween is still pretty awesome.
NASA is using special paint that glows under ultraviolet light to test airflow and pressure. The paint responds to pressure by glowing brighter. This is first test using the “unsteady Pressure Sensitive Paint” that has been in development for a few years.
Via NASA:
Unsteady pressure sensitive paint is a specialized coating that varies in brightness according to how much pressure the air flow applies to the wing. High-speed cameras capture those changes, providing data for computer models. For years, NASA researchers at centers including Langley and the agency’s Ames Research Center in California’s Silicon Valley have been working to integrate the paint into wind tunnel tests for aircraft and rockets. NASA researchers consider the paint a vital tool and expect to find many more wind tunnel applications in the future.
This test marked the technique’s first use on a large-scale, freely moving model in a low‑oxygen environment, an achievement made possible by the Transonic Dynamic Tunnel’s unique testing capabilities.
Not pressure sensitive, but still fun! Pick up Fluorescent Pigment and NeoPixel UV LED Strips to create vibrant displays, like this vertical garden or 3D Printed Dragon Lamp
Shared by TonyG on Printables:
TA case for RAKwireless RAK19007 and RAK5005 WisBlock kits, built for Meshtastic. Fits the RAK19007 or RAK5005 base board plus RAK4631 (LoRa), RAK12500/1910 (GNSS/GPS), RAK13002 (IO), and RAK18001 (piezo buzzer) modules. Supports big battery options: 2500mAh lithium-ion, 3000mAh lithium polymer, or 2× 18650 cells (12mm battery back cover required for the biggest options). Optional user button via RAK13002 IO board or mini IO expansion. Rounds out the Meshtastic showcase across major LoRa dev-board families.
Download the files and learn more
Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!
Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!
Bruddzz shares:
A Halloween pumpkin-spider hybrid with an ACTUAL retractable web mechanism. The abdomen houses a removable spool: thread webbing through the abdomen canal, tie it to the spool loop, insert the spool into the abdomen base, secure the bottom halves. Compatible with fishing line, floss, or any string. Includes resistance tabs to prevent web slipping. Standard version: 11.9 hours / 2 plates. A1 Mini version: 13.1 hours / 3 plates. Combines flexi articulation, mechanical fun, and prop-level presence in one Halloween piece. By Bruddz
download the files on: https://makerworld.com/en/models/1850927-articulated-pumpkin-spider-with-retractable-web
Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!
Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!
LIVE CHAT IS HERE! http://adafru.it/discord
Adafruit on Instagram: https://www.instagram.com/adafruit
Shop for parts to build your own DIY projects http://adafru.it/3dprinting
3D Printing Projects Playlist:
3D Hangout Show Playlist:
Layer by Layer CAD Tutorials Playlist:
Timelapse Tuesday Playlist:
Connect with Noe and Pedro on Social Media:
Noe’s Twitter / Instagram: http://instagram.com/ecken
Pedro’s Twitter / Instagram: http://instagram.com/videopixil
The Python for Microcontrollers Newsletter is the place for the latest news involving Python on hardware (microcontrollers AND single board computers like Raspberry Pi).
This ad-free, spam-free weekly email is filled with CircuitPython, MicroPython, and Python information that you may have missed, all in one place!
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And please tell your friends, colleagues, students, etc.
Hannes (hannesb) posted a working Matter temperature sensor build on the Seeed Studio forum, running on the XIAO nRF54LM20A. He started from the nRF Connect SDK Matter temperature template, added a BME sensor for temperature and humidity readings, and took supply current measurements. The source code is up on GitHub.
SDK 3.4.1 did not produce running code for him. He points at the deprecated Partition Manager as the main obstacle.
A forum reply digs into the static partition file. The app slot was shrunk from 0x125800 to 0x10D800 to fit everything in internal flash, but mcuboot_primary was left at its old size, so the primary and secondary slots overlap. The suggested fix is to move mcuboot_secondary to the board’s on-board 8 MB PY25Q64HA SPI NOR flash. That frees about 768 KB of internal RRAM and allows a symmetric primary slot near 1.8 MB with no DFU decompression at runtime. The reply also suggests raising settings_storage from 48 KB to 64 KB for setups joining more than one Matter fabric, such as Apple Home and Home Assistant at the same time.
See more at forum.seeedstudio.com and content on GitHub.
The Python for Microcontrollers Newsletter is the place for the latest news involving Python on hardware (microcontrollers AND single board computers like Raspberry Pi).
This ad-free, spam-free weekly email is filled with CircuitPython, MicroPython, and Python information that you may have missed, all in one place!
You get a summary of all the software, events, projects, and the latest hardware worldwide once a week, no ads! You can cancel anytime.
It arrives about 11 am Monday (US Eastern time) with all the week’s happenings.
And please tell your friends, colleagues, students, etc.
Hubble has photographed the “Ghost Nebula,” which has eerie, semitransparent flowing veils of gas and dust. The nebula is being blasted by ...
