UPDI stands for Unified Program and Debug Interface, but this board is so smol and cute that we will call it the Unusually Playful Device Interfacer and pat its head when it does a good job. It’s designed to make programming modern ATtiny chips very easy because it has 3V or 5V power and logic select, power, and transmit indicator LEDs, and a quick cable for poking into a breadboard.
Unlike our simple UPDI version, this board is HV for High Voltage because it will let you send a quick 12V pulse to the UPDI like right before programming. This is required for when the chip is configured to use the UPDI pin as a reset or GPIO. This board will also let you ‘unbrick’ any chip configured for HV usage, you can use it to reset the fuses for Low Voltage programming.
As for our seesaw boards, we have been working a lot with ATtiny816, ATtiny817, and ATtiny1616 chips lately. And we’re often needing to program them with a CP2102-based breakout with a 1K resistor soldered between the RX and TX pins. But we were hankering for a nicer programmer!
This UPDI High Voltage Friend makes programming such chips very easy:
We use Arduino IDE with the megaTinyCore board support package installed; simply select “Serial UPDI” as the programmer type. We use 230Kbps, but 56Kbps is also good. In order to enable the high-voltage fuses settings, you’ll need to edit boards.txt to remove the # comment tag on the “UPDI/RESET PIN CONFIGURATION” lines.
Inspired by Scott’s blog post, CircuitPython 2024, the developers and designers on the Adafruit IO team are requesting feedback (from you!) to help guide our development of Adafruit IO in 2024.
If you’re a current Adafruit Free IO user, an Adafruit IO Plus (paid) user, or have previously used Adafruit IO in the last year, we want to hear from you!
The feedback is free-form, it may cover any topic related to Adafruit IO including WipperSnapper.
To start off, here are some topic ideas (note that these are not inclusive and you can blog/post/provide feedback on anything you’d like!):
Ready to post your feedback? Here are some various ways to post:
When you post, please add #AdafruitIO2024 and email iotnews@adafruit.com to let us know about your post, so we can post it on the Adafruit Blog!
As for me, I’ll be doing my post soon!
If you’ve ever seen Fritz Lang’s Metropolis you know that silent, black and white movies can be every bit as vibrant, entertaining, intense, visionary, and rich as any other movie. In fact, in the period just before the advent of sound film reached visual heights and complexity unrivaled until decades later. Sound forced a reduction in scale, due to the requirements of rudimentary early sound equipment. All this means that there are some astonishing silent science fiction films that can be found. Here are 5 silent science fiction films that pre-date Lang’s masterpiece, from the British Film Institute:
A bait-and-switch space travel movie from the Soviet era, Aelita Queen of Mars combines science-fiction, enjoyably preposterous costume design, constructivist sets and a story of revolution. In contemporary Moscow, a mysterious radio signal inspires a young engineer, Los, to dream that it is a communication from Mars. The red planet is shown as a desperately unequal society where aristocrats are waited on by mistreated slaves, but the cruel queen trains her galactic telescope on Earth and falls in love with the engineer. Events back home in Moscow are interposed with Los’s voyage to Mars, where, with all the good instinct of a Soviet worker his companion, Gussev, encourages the Martian underclass to rise up against their oppressors. The message is that solidarity extends across borders and even between planets, but this film is far more celebrated for its bizarre and brilliant style, which has been cited as an influence on Lang when he came to make Metropolis.
Miniature painter and YouTuber Ninjon has a fantastic video looking at tools to use in hobby modeling and painting (and similar applications) that are not necessarily designed for that purpose.
He covers everything from tattooist’s squirt bottles to manicurist’s vortex mixers to things like craft store wooden candle stick holders for holding minis for painting and double-stick tape to hold them to the candle stick.
I use many of the tools he recommends in my miniature painting work and swear by them, too.
In this rather mesmerizing video, Fraser reconstructs one of the ancient Greek engineer Hero’s programmable automata. He builds everything by hand, starting with turning trees into lumber. The whole process is fascinating to watch and the mechanisms are ingenious.
After putting it all together, he finds issues with various systems and goes to work troubleshooting and repairing.
Inspiring stuff.
Come on by for JP’s Product Pick of The Week! A new product pick will be revealed. The show airs at 4pm ET / 1pm PT, TODAY!
Check out the livestream right here inside this product page you won’t want to miss it because there will be a HUGE DISCOUNT during the show!
Tune in for:
The live video will also be on YouTube LIVE, Twitch, Periscope (Twitter) and Facebook. LIVE TEXT CHAT IS HERE in the Adafruit Discord chat! Come on into the chat to participate in the conversation!!
Every Tuesday @ 4pm ET/1pm PT!
For precision temperature sensing, nothing beats a Platinum RTD. Resistance temperature detectors (RTDs) are temperature sensors that contain a resistor that changes resistance value as its temperature changes, basically a kind of thermistor.
In this resistance sensor, the resistor is actually a small strip of Platinum with a resistance of 100 ohms at 0°C, thus the name PT100. You can also use this sensor to measure any kind of variable resistor that has about 100 ohm of resistance (but can range from half to double that)
Compared to most NTC/PTC thermistors, the PT type of RTD is much most stable and precise (but also more expensive) PT100’s have been used for many years to measure temperature in laboratory and industrial processes, and have developed a reputation for accuracy (better than thermocouples), repeatability, and stability.
However, to get that precision and accuracy out of your PT100 RTD you must use an amplifier that is designed to read the low resistance. Better yet, have an amplifier that can automatically adjust and compensate for the resistance of the connecting wires. If you’re looking for a great RTD sensor, today is your lucky day because we have a lovely Adafruit RTD Sensor Amplifier with the MAX31865 breakout for use with any 2, 3 or 4 wire PT100 RTD!
We’ve carried various MAXIM thermocouple amplifiers and they’re great – but thermocouples don’t have the best accuracy or precision, for when the readings must be as good as can be. The MAX31865 handles all of your RTD needs, and can even compensate 3 or 4 wire RTDs for better accuracy. Connect to it with any microcontroller over SPI and read out the resistance ratio from the internal ADC. We put a 430Ω 0.1% resistor as a reference resistor on the breakout. We have some example code that will calculate the temperature based on the resistance for you.
We even made the breakout 5V compliant, with a 3.3V regulator and level shifting, so you can use it with any Arduino or microcontroller.
Each order comes with one assembled RTD amplifier breakout board. Also comes with two 2-pin terminal blocks (for connecting to the RTD sensor) and pin header (to plug into any breadboard or perfboard). A required PT100 RTD is not included! (But we stock them in the shop). Some soldering is required to solder the headers to the breakout, but it’s an easy task with soldering tools.
Please note: this does not include an RTD sensor! The terminal block color may vary
From the GitHub release page:
This is CircuitPython 9.0.0-beta.2, a beta release for 9.0.0, and is a new unstable release. This release has known bugs that will be addressed before 9.0.0 final.
Note for MEMENTO Camera Board users: This release contains an important fix for MEMENTO. If you originally installed a version of CircuitPython older than 9.0.0-beta.2 on your board, your CIRCUITPY drive thinks it is larger than it really is. This can cause crashes. To fix this, back up what is on your drive, install CircuitPython 9.0.0-beta.2 or later, and then erase and reformat CIRCUITPY by running this code from the terminal or in a program
import storage
storage.erase_filesystem()
Or, use the factory reset procedure described in the MEMENTO Learn Guide. But the simple code above will work just as well.
WARNING for nRF52 boards only: If your board has an nRF52 UF2 bootloader whose version is before 0.6.1, you will not be able to load CircuitPython 8.2.0 and later, due to increased size of the firmware. See these instructions for updating your bootloader.
socket behavior: Sockets must be explictly made reusable. See Networking below.synthio.Note .loop_start and .loop_end properties.synthio.Synthesizer.note_state.synthio.OrderedDict.move_to_end().warnings module, similar to what is in CPython.locale.getlocale().codeop.compile_command().displayio.*.show(), I2CPeripheral renamed to I2CTarget.displayio. 8.x.x naming structure is available in 9.x.x, but will be removed in 10.0.0.jpegio JPEG decoder support.bitmapfilter image manipulation.MemoryError. If you encounter programs that work in 8.x.x but get MemoryError exceptions, consider filing an issue with details.socket.setsockopt(pool.SOL_SOCKET, pool.SO_REUSEADDR, 1), as in CPython./sd in fresh filesystems to provide a mount point.repl.py, which runs just before the REPL starts up.Firmware downloads are available from the downloads page on circuitpython.org. The site makes it easy to select the correct file and language for your board.
To install follow the instructions in the Welcome to CircuitPython! guide. To install the latest libraries, see this page in that guide.
Try the latest version of the Mu editor for creating and editing your CircuitPython programs and for easy access to the CircuitPython serial connection (the REPL).
Documentation is available in readthedocs.io.
CircuitPython has a number of “ports” that are the core implementations for different microcontroller families. Stability varies on a per-port basis. As of this release, these ports are consider stable (but see Known Issues below):
atmel-samd: Microchip SAMD21, SAMx5xcxd56: Sony Spresenseespressif: Espressif ESP32, ESP32-S2, ESP32-S3, ESP32-C3nrf: Nordic nRF52840, nRF52833raspberrypi: Raspberry Pi RP2040stm: ST STM32F4 chip familyThese ports are considered alpha and will have bugs and missing functionality:
broadcom: Raspberry Pi boards such as RPi 4, RPi Zero 2Wlitex: fomumimxrt10xx: NXP i.MX RT10xxxsilabs: Silicon Labs MG24 familystm: ST non-STM32F4 chip familiesstorage.erase_filesystem(). #8952. Thanks @dhalbert @jepler.bit_length(). Thanks @kbsriram.Thank you to all who used, tested, and contributed since 9.0.0-beta.1, including the contributors above, and many others on GitHub and Discord. Join us on the Discord chat to collaborate.
It’s always interesting, given several options, to see which tool you tend to reach for. It may not be the best, the most expensive, but some x-factor makes it your go-to: handle-feel, smoothness of operation, some special design feature that comparable tools don’t have.
In this Last Best Tool video, Doc looks at 5+ hand tools from Klein that he tends to grab over other tools/brands. He shows off their huge diagonal cutters, lineman’s tool, huge needle nose pliers, and multipliers. And how about that hawkbill utility knife? I think I need me one of those!
Browse through all that’s new here!
Espressif ESP32-S3-BOX-3B: This is the ESP32-S3-BOX-3B bare-bones version of ESP32-S3-BOX-3 kit without add-ons. Click here for the standard ESP32-S3-BOX-3 kit edition which comes with more sensors!
With its freely available development resources, ESP32-S3-BOX-3 is the ultimate choice for prototyping new projects or building complex AIoT systems.
Adafruit ItsyBitsy ESP32 – PCB Antenna – 8 MB Flash / 2 MB PSRAM: What’s smaller than a Feather but larger than a Trinket? It’s an Adafruit ItsyBitsy ESP32, a powerful processor PCB with a plethora of pins! It features the ESP32 Pico module, an FCC-certified module that contains an ESP32 chip with dual-core 240MHz Tensilica processor, WiFi, and Bluetooth classic + BLE, configured with 8 MB of Flash memory, and 2 MB of PSRAM.
We’ve added some handy accessories like a USB to serial converter chip, power regulator, USB Micro B, buttons, NeoPixel, and Stemma QT I2C connector to outfit this super-hero chip for any task you want to throw it at. This is also an ultra low power ESP32 board with a deep sleep current consumption of 10uA!
Adafruit ItsyBitsy ESP32 – wFL Antenna – 8 MB Flash / 2 MB PSRAM: What’s smaller than a Feather but larger than a Trinket? It’s an Adafruit ItsyBitsy ESP32 with a wFL external Antenna Connection, a powerful processor PCB with a plethora of pins! It features the ESP32 Pico module, an FCC-certified module that contains an ESP32 chip with dual-core 240MHz Tensilica processor, WiFi, and Bluetooth classic + BLE, configured with 8 MB of Flash memory, and 2 MB of PSRAM.
We’ve added some handy accessories like a USB to serial converter chip, power regulator, USB Micro B, buttons, NeoPixel, and Stemma QT I2C connector to outfit this super-hero chip for any task you want to throw it at. This is also an ultra low power ESP32 board with a deep sleep current consumption of 10uA!
Pink Anti-Static Zip Top Bag – 2″ x 3.5″ – 100 Pack: These baggies are great for carrying and transporting small electronics, especially delicate or ESD-sensitive PCBs and other parts and components. We have a ton of extras in the warehouse and thought folks might be interested since we often use heat-sealed (and thus, not reusable) bags these days.
Flora RGB Smart NeoPixel version 3 – Sheet of 20: So, you want lots and lots of NeoPixels? And you want them for less? Not a problem! Here’s a sheet of Flora NeoPixels fresh from the (reflow) oven. Cut them off as you need ’em and save a pretty penny while you’re at it.
Each order comes with 20 pixels on a sheet. If you want a smaller number, we also have them in packs of 4. We suggest cutting them out with diagonal cutters or heavy-duty scissors.
Adafruit NeoRGB Stemma – NeoPixel to RGB PWM LEDs and Strips – STEMMA JST PH 2mm: Whenever we’re working with ‘true analog’ LED strips, that have 1-3 channels of RGB or White LEDs, we wish we had already invented to make wiring them easier: controlling these strips takes a bit of wiring since they almost always need 12VDC and driver FETs. Now, we’ve finally created the Adafruit NeoRGB Stemma board – which will make our lives easier, and maybe even some customer’s too!
The NeoRGB is a no-soldering, plug-and-play STEMMA board with a 2mm JST PH connector on one end, and a 5-pin 0.1″ screw terminal block on the other. It can convert standard 800KHz NeoPixel signal using a WS2811F chip to AO3406 N-channel FETs that are high efficiency and can sink a chunk of current – 3 Amps a piece with 50milliOhm Ron!
Stay in the loop at Adafruit.com/New!
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JISpal01 shared this project on Thingiverse!
I uploaded version of the SD and USB sides and HDMI Exhaust Port with 4mm holes – intended for use with brass threaded inserts with a ~4.2mm OD (at the knurl). Also uploaded pics of a better looking prototype.
This is a case for a Raspberry Pi 5 and (optionally) a second board attached to the bottom of the Pi with 6mm or 7mm long spacers.
The intended use is for the Pineberry Hat Drive!
Download files: https://ift.tt/KOdvQYq
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!
It’s JOHN PARK’S WORKSHOP — LIVE! — Coming up at 4pm ET / 1pm PT Today! LIVE TEXT CHAT IS HERE in the Adafruit Discord chat!
Today’s project: MEMENTO Lighting
Also:
The live video will be on Youtube LIVE, Twitch, Periscope (Twitter) and Facebook.
Join maker John Park in his workshop each week as he builds, demos, hacks, and mods projects live on air! “John Park’s Workshop — LIVE” is the place to see creative projects come to life, as John uses a wide variety of tools and techniques to make everything from mystery boxes to synthesizer controllers to drink robots, using digital fabrication, hand and power tools, microcontrollers, and more. Come on into the chat to participate in the fun! Every Thursday @ 4pm ET/1pm PT!
Throughout the month of February, The Met will celebrate the rich culture and history of African Americans through art, talks, digital content, and more. Consider attending a curated deep dive on Tuesday February 20th. Via the MET
On Tuesday, February 20, join Museum experts for a deep dive into a selection of exhibition objects in the galleries in celebration of Black History Month.
See all upcoming Black history month programming at the MET!
Davis Gleason has created worldradiohistory.com, a comprehensive website on the broadcast industry. Nine million pages are posted and searchable, even from within PDF documents.
Material is listed in dozens of categories:
Check out the collection of the Beatles Book Monthly 1963-1969!
Check it all out here.
The cause of Io’s extreme volcanism is related to the gravitational influence of Jupiter, Europa, Ganymede, and Callisto. Space shares.
NASA’s Juno spacecraft has made a second flyby of Jupiter’s moon Io, capturing the solar system’s most volcanic body in stunning detail. The spacecraft also allowed operators to glimpse a side of Io not seen in 35 years.
The images of Io were taken last week, made possible by the Feb. 3 flyby that saw Juno dip to within 930 miles (1,500 kilometers) of the surface of the Jovian moon.
We’ve got the New nEw NEW for you right here:
TFP401 HDMI/DVI Decoder to 40-Pin TTL Breakout – With Touch
It’s a mini HDMI decoder board! So small and simple, you can use this board as an all-in-one display driver for TTL displays, or perhaps decoding HDMI/DVI video for some other project. This breakout features the TFP401 for decoding video, and for the touch version, an AR1100 USB resistive touch screen driver.
nOOds – Flexible LED Filament – 24V 1.2m long – Lime Green
Our favorite food when hacking on code or electronics is a hot bowl of noodles – and around NYC, these are often called ‘noods’! What we’ve got here are flexible LED noodles in different lengths and colors. All are not good for eatin’, but they are good for cool lighting effects
nOOds – Flexible LED Filament – 24V 1.2m long – Blue
Add some mini, noodle-y neon bling to your miniature sets, dioramas, dollhouses, mini-verses, what have you! These look and feel like what we always wanted out of EL wire, and because they’re just a ‘big long LED’ you can PWM dim them easily.
nOOds – Flexible LED Filament – 24V 1.2m long – Red
Our favorite food when hacking on code or electronics is a hot bowl of noodles – and around NYC, these are often called ‘noods’! What we’ve got here are flexible LED noodles in different lengths and colors. All are not good for eatin’, but they are good for cool lighting effects
Double-Sided Single Color 12V LED Strip – Warm White 3000K – 1m
They’re bright, they’re white, they light up the night – look at them too close and you may get spots in your sight… This is a Single Color, Double-Sided LED strip with 336 bright 2.6mm x 3.2mm white LEDs adorning both surfaces of a 6mm wide, 1 meter long LED strip.
Double-Sided Single Color 12V LED Strip – Cool White 6000K – 1m
They’re bright, they’re white, they light up the night – look at them too close, and you may get spots in your sight… This is a Single Color, Double-Sided LED strip with 336 bright 2.6mm x 3.2mm cool white LEDs adorning both surfaces of a 6mm wide, 1 meter long LED strip.
Adafruit ESP32-S3 Feather 8MB with w.FL Antenna
The ESP32-S3 has arrived in Feather format – and what a great way to get started with this powerful new chip from Espressif! With dual 240 MHz cores, WiFi and BLE support, native USB, and with this version easy external antenna support thanks to an on-board w.FL connector. This Feather is great for powering your IoT projects.
Visit www.adafruit.com/new for more info.
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New nEw NEWs From Adafruit is an email newsletter sent out once a week to subscribers only. It features new products, special offers, exciting original content, and more. Sign-up NOW for the Adafruit weekly Newsletter here: https://www.adafruit.com/newsletter
3D printing food is here and its delicious! Although we cant 3D print chocolate on our Makerbot quite yet, you can design and print your own chocolate molds just in time for Valentine’s Day.
The Ben Borgers blog shows how to take a used Nook eReader with its eInk display and use it as an inexpensive display for photos.
For this project I went with a Nook Simple Touch Reader. You can find them on eBay or Facebook Marketplace for $10-$30 used.
The reason to go with a Nook instead of a Kindle or another e-reader is that Nooks run Android under the hood. That means they’re far easier to root and to run Android apps on.
After you get it running Android, you can run an ancient Android app called Electric Sign. This app allows you to put any website on the Nook’s screen and have it refresh at a given interval, with a catch: the Nook doesn’t support SSL. Therefore I had to set up a website that uses
http://instead ofhttps://, which is remarkably difficult in this day and age.I wanted to source the images from a shared iCloud photo album. That way, I could share the album with my parents, and they could add new photos that would show up on the frame right from their Photos app.
iCloud photo albums have no API. However, if you share an iCloud photo album to a public link, you can use the Developer Tools to inspect the API requests Apple is making to get the photos.
Read all the details in the post here.
ElectroBoy on hackaday.io has created a development board using a Microchip Atmel AT89S52, a modern reimagining of the Intel 8051 microcontroller from 1980.
As you might see, the performance of a microcontroller depends on architecture, clock rates and Design logic. 80s52 has higher performance and better features than (the) Original (8051) microcontroller with 8KB onboard Flash as program memory.
I took inspiration from Arduino UNO and designed a PCB with all the controls on it, the programming headers are placed on one header, and all the 4 ports have dual headers. I also designed the power section with some capacitor, Dc jack and linear voltage regulator on the same board.
Comparing the 8051 with the Microchip AT89S52:
Read more on hackaday.io and Hackaday.
Deadline shares what to expect for the Star Trek spatial experience on the Apple Vision Pro. The experience was curated specifically for this AVP so it’ll be interesting to see how it goes.
The app marks a major evolution of the project, preserving and celebrating the legacy of Star Trek creator Gene Roddenberry, which had over 4 million visitors during a limited three-week preview online in April 2023. It promises to immerse Trekkies in nearly two hours of groundbreaking Star Trek spatial experiences built exclusively for the Apple Vision Pro, allowing them to explore hundreds of fully realized locations, artifacts and unique items — spanning every Star Trek TV show and film across the franchise’s nearly 60-year history.
‘
What is the first science fiction story? Some say the first science fiction story is the True History by Lucien of Samosata, in which a ship is brought by a cyclone up into the sky, where it sails in among the celestial bodies. But given that Lucien’s story was written in the second century A.D. A philosopher might ask, how could there be a science fiction story written before the development of modern science? But then another philosopher might ask, what does science mean anyhow? This is why philosophers are annoying. Here’s more from MOTHERBOARD:
The term “sci-fi” was coined in 1954 when Forrest Ackerman, the prototype sci-fi memorabilia collector, was cruising around Los Angeles and listening to his car radio. The word “hi-fi, referring to high-quality audio equipment, caught his attention, so he riffed on it: “I looked in the rear-view mirror, stuck out my tongue, and there tattooed on the end of my tongue was sci-fi.”
Like most genres, sci-fi existed before there was a term to describe it. James Gunn [not that James Gunn], grand master of the Science Fiction and Fantasy Writers of America, thinks that its origin point was the Industrial Revolution. “Science fiction couldn’t exist until change created by science, technology, or natural events became apparent within people’s lifetimes,” he told me. “And that’s why our current era is science-fictional, because change is occurring annually, almost daily, and we have to adjust to it or are adjusted by it.”
Are you subscribed to the Adafruit Youtube channel? If you’re not already subscribed, click here! http://adafru.it/subscribe . It’s a free and easy way to keep up with our newest episodes. Here’s some of what we’re up to.
Electronics show and tell every Wednesday at 7:30pm ET.
Every Wednesday night at 8pm ET join us for our weekly live video & chatroom! Visit http://adafruit.com/ask for more info. You can ask anything about electronics, kits at Adafruit or just stop in to meet other makers who are building cool things!
Hang out with Noe & Pedro Ruiz every week and discover 3D printing! Get your 3D news, projects, design tutorials, shop talk and more each week..
Each week Ladyada shows the newest great electronics at Adafruit!
Join Ladyada streaming live for circuit board layout design, code writing, surface mount soldering and more fresh engineering and even some gaming! If Ladyada’s working on it, you’ll find it here first.
Chip Shortage includes videos about the ongoing chip shortage in the electronics industry. Adafruit founder Ladyada discusses the current state and highlights products that are hard to get or possibly “unobtainium”.
Project builds, hacks, and mods from John Park’s Workshop!
This playlist highlights Adafruit manufacturing right here in NYC!
dr_badger shared this project on Thingiverse!
This is a clock where, instead of having linear hands, the entire clock face rotates. This produces interesting geometrical patterns throughout the day as the two hands intersect at various angles.
You will need to print a face, a frame, an hour hand, and a minute hand.
It is intended to be more difficult than a typical clock to read, as a sort of statement on the modern obsession with precise time. The hour and minute hands are identical, other than the hole for the shaft.
STLs are provided that fit a movement I own. There is also a .scad for customization to whatever movement you find.
The various surfaces are rounded so that the edges are less likely to catch on one another, but it still happens, usually when the hands are 90 degrees apart. I recommend finding a fairly rigid filament. Ensure that everything is stable and parallel. There should be small gaps between the face, the hour hand, and the minute hand.
Download files: https://www.thingiverse.com/thing:6408720
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!