Do you ever feel like someone or something is watching you? In the case of this project, it is! You can use a Fruit Jam running CircuitPython with a USB webcam to display monster eyes that gaze in the direction of motion captured by the webcam. The CircuitPython code utilizes Turbo helper modules to speed up tasks like drawing the monster eyes and checking for new motion in the camera frames.
If you missed this week’s livestream of John Park’s Product Pick of the Week, not to worry, here’s the video. This week’s pick is the DC Motor + Stepper FeatherWing! Watch the video to find out about the DC Motor + Stepper FeatherWing, how to use it, a live demo, and more.
Three different spooky tombstone tea-light holders, with an alternative version available without crosses. Accommodates round tea lights up to 40mm diameter. Two-piece construction with fuzzy skin texture. Stones print at 45° angle for optimal surface quality. Base plates use 150% flowrate with Hilbert curve pattern for the fuzzy top layer; lower stone portions must print without fuzzy skin for proper assembly fit. Pre-configured profiles with custom fuzzy skin settings and manual supports provided. Commercial license available via Patreon. By Maxx Design
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!
Zed (@M-Abozaid) published a DNS ad-blocker on GitHub that runs on a $2 ESP32-C3 with no PSRAM. Most ESP32 DNS sinkholes load blocklist domain strings into RAM, which is why they need PSRAM. This one stores each domain as a sorted 40-bit FNV-1a hash in flash and binary-searches it. Over 140,000 domains fit in about 0.7 MB of flash, match in roughly 10 ms, and use about 50 KB of RAM.
The 40-bit width is a deliberate pick. At 141k domains collisions are near zero, and at 537k there is about one over-blocked domain. A 32-bit hash would save 20% of the flash but produce around seven collisions at 250k domains.
There is a UDP DNS sinkhole, a web dashboard at c3adblock.local, WiFi captive portal setup, and OTA updates for both firmware and blocklist. On a 4 MB board, firmware OTA needs two app slots, leaving about 1.3 MB for the list, so roughly 250k domains. The 537k “ultimate” list requires the single-app partition table. A printable case for the C3 SuperMini is included.
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A followup to last year’s Soul Cage vishalsoniindia has another entry in the spooky wearable category.
The Eye Pendant is a wearable electronic pendant with a small round display that shows an animated eye. The eye moves around the screen, looking in different directions and creating the illusion of a realistic eye watching you. It gives the pendant a creepy personality that is perfect for Halloween
EI3LH wrote up two days of Parks on the Air activations in County Kilkenny, Ireland, on ei3lh.eu. Both parks were ATNOs, or all time new ones, meaning nobody had activated them before.
The first was Coill an Fhailtaigh National Forest, IE-0056, one of Ireland’s 16 Millennium Forests. With the park close to closing, the setup was a Yaesu FT-891 and an ATAS antenna at 100 watts on CW. Ten contacts came in 16 minutes, and the session finished with 27 QSOs in an hour and nine minutes, including Tennessee, Washington state and New York.
The next day brought a lunch break test of an Elecraft KH-1 with a battery that had not been charged. Output was around 2 watts. That was enough for four SOTA contacts in Spain, Slovenia, Switzerland and Germany in 20 minutes.
The evening park was Jenkinstown, IE-0057, activated in 11 minutes and finishing at 37 QSOs. EI3LH also made a binaural field recording of the forest birdsong using a Tascam recorder and Roland CS-EM10 earphones, best heard on headphones.
Since 1994 World Teachers Day is honored every October 5. This is a time to celebrate teachers on the anniversiary of a 1966 UNESCO Reccomendation on teachers. Teachers are doing transformative work and they need support! 2026 marks the 60th anniversary!
Under the theme “Standing with teachers: 60 years of protecting the profession, advancing its status and shaping our futures,” the 2026 edition will centre on reviewing the current challenges related to teacher status and the strategies to address them, calling on society and policy-makers to protect, promote and elevate that status.
Every day Adafruit has resources to help Teachers:
We have a special channel on our forums where teachers and academics trade notes: Forum For Educators.
Our Learn Guides make great resources for designing projects or curriculum.
Check out the Adafruit blog for stories and links for teachers.
We’ve got so much happening here at Adafruit that it’s not always easy to keep up! Don’t fret, we’ve got you covered. Each week we’ll be posting a handy round-up of what we’ve been up to, ranging from learn guides to blog articles, videos, and more.
A phyllotaxis describes a distinct arrangement of leaves some plants form. It is one of nature’s mesmerizing patterns and one that maker Jagi Natarajan is particularly interested in. In this project they created spiraling audio-reactive LED display. It has 89 individual cells each lit by an addressable LED. The project has already gone through two iterations with a third planned sometime in the future.
I’ve been fascinated by understanding patterns that appear in nature, through code. Communing with the inherent emergent patterns that exist in the universe.
The phyllotaxis is one such pattern, the expanding double-spiral shape that appears in the center of sunflowers, succulents, other plants. It’s surprisingly simple code
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!
Hubble has photographed the “Ghost Nebula,” which has eerie, semitransparent flowing veils of gas and dust. The nebula is being blasted by a torrent of radiation from a nearby, blue-giant star. This animation flips between two views from Hubble. The more colorful image is taken in visible light where the glow of hydrogen gas looks pinkish. By contrast, the green-grayish view is in near-infrared light (IR) which only records light reflected off of dust. The nebula becomes more transparent and ethereal when looking at it in the IR, allowing for background stars to become more visible. NASA, ESA, and J. DePasquale (STScI) via NASA
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.
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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.
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.
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.
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!
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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
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!
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.
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.
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.
