John Park’s Workshop Live 6/12/25 LED Dance Shoe variants CircuitPython Parsec JPPPoW recap Projects and more!
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Pre-Assembled Adafruit PiCowbell Adalogger for Pico - MicroSD, RTC & STEMMA QT (0:08) https://www.adafruit.com/product/6355
Adafruit STSPIN220 Stepper Motor Driver Breakout Board (1:25) https://www.adafruit.com/product/6353
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ASK AN ENGINEER 6/11/2025 LIVE
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#adafruit #electronics #diy
To show and share a project at 7:30pm Eastern today, view the chat or in discord https://adafru.it/discord and look for the JOIN link to join. For best results, be on a wired network connection and use a headset and microphone.
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This week @adafruit we’re taking a look at the learn guide for our LED matrix alarm clock. For Prototyping we have a working fake typewriter using our new solenoid driver and Feather RP2040 with USB host. Our Time-lapse this week features a jellyfish designed by JIMGA on MakerWorld.
YouTube Video https://youtu.be/L7PR6Om2iRk
Learn Guide https://learn.adafruit.com/led-matrix-alarm-clock
IS31FL3741 LED Matrix https://www.adafruit.com/product/5201
QT Py S3 https://www.adafruit.com/product/5700
I2S Audio BFF https://www.adafruit.com/product/5770
Rotary Encoder STEMMA QT https://www.adafruit.com/product/5880
Timelapse Tuesday
Flexy Jellyfish By JIMGA https://makerworld.com/en/models/1484999-jellyfish-articulated-keychain https://youtu.be/OJyLPQkuWIo
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You can build a 3D printed IoT alarm clock using CircuitPython and electronics from Adafruit.
Guide: https://learn.adafruit.com/led-matrix-alarm-clock
This LED matrix alarm clock is inspired by the cute plush toy monsters LaBuBu by Pop Mart.
It gets time from the internet and features sound effects, brightness dimming for night time and cute animations like winking eyes.
The clock is powered by an Adafruit QT Py ESP32-S3 with an amplifier for high quality audio output.
Set your timezone, alarm time, volume, and the LED brightness settings for day and night. The alarm sounds are audio .mp3 files that are randomized each time they’re triggered.
Scrolling text is displayed when an alarm goes off, and a winking eyes animation plays – giving the clock some character.
A rotary encoder is used to set the alarms. You just press on the encoder and turn the knob to set hours and minutes. Text will display to show if the alarm is On or Off.
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Notes document is available here, with timecodes: https://github.com/adafruit/adafruit-circuitpython-weekly-meeting/blob/main/2025/2025-06-09.md
The CircuitPython Weekly normally is held at 2pm US ET/11am us PT on Mondays. Check the #circuitpython-dev channel on Discord for notices of change in time and links to past meetings. Meeting times are also available in iCal format using the following link: https://raw.githubusercontent.com/adafruit/adafruit-circuitpython-weekly-meeting/master/meeting.ical.
CircuitPython development is sponsored by Adafruit. Please support them by purchasing hardware from https://adafruit.com.
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0:00 Housekeeping 2:23 Community News 6:45 State of CircuitPython, Libraries & Blinka 14:34 Hug Reports 16:00 Status Updates 19:52 In the Weeds 22:46 Wrap-up
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This week at the desk, we’re working on getting more designs wrapped and out the door so we can keep a steady supply of new products into the shop.
First up is a TPS61169 constant current booster, designed to make driving nOOds easier—especially 12V or 24V ones, but also series-connected 3V filaments. 🔗 https://www.digikey.com/en/products/detail/texas-instruments/TPS61169DCKR/5048578 🔗 https://www.adafruit.com/search?q=nOOds
Next, we got our BQ25798 MPPT battery charger prototypes in—they look good and didn’t explode when powered! 🔗 https://blog.adafruit.com/2025/05/15/eye-on-npi-ti-bq25798-i2c-controlled-1-to-4-cell-5-a-buck-boost-battery-charger-mppt-for-solar-panels-eyeonnpi-digikey-digikey-adafruit/
The same cannot be said for the LM73100—we think a Rev B with slew rate limiting and a proper voltage divider will help. 🔗 https://blog.adafruit.com/2025/05/08/the-lm73100-is-a-cute-ideal-diode/
Finally, we got a tip that the popular TPS61023 we use in many boards as a 5V 1A booster has a more powerful big sister, the TPS61033! We designed two boards using this chip for generating 5V at up to 2A.
🔗 https://www.adafruit.com/product/4654 🔗 https://www.digikey.com/en/products/detail/texas-instruments/TPS610333DRLR/22106777
…
The Great Search – UV LEDs for Costuming We recently got a request to make LED sequins with bright UV LEDs for costuming projects using UV-reactive paints and textiles. Also known as ‘blacklight’ paint or fabric, these dyes glow fluorescent when exposed to UV light.
🔗 https://www.digikey.com/short/bndtdnbr 🔗 https://www.adafruit.com/search?q=led+sequin 🔗 https://en.wikipedia.org/wiki/Ultraviolet
However, not all UV LEDs will work! UV ranges from 100nm to 450nm, and some frequencies are used for curing or disinfection. For light effects, 365nm is the ‘peak’ frequency to look for. Let’s find a ~365nm SMT UV LED we can pick and place onto a small PCB for easy sewing. ✨🧵
The wonderful world of Python on hardware! Episode 310 (May 7, 2025). This is our weekly Python video highlights! Ladyada and PT review the Python on hardware news of the week.
The news comes from the Python community, Discord, Adafruit communities and more. It’s part of the comprehensive newsletter we do each week.
The video playlist of episodes is here: http://adafru.it/pohepisodes
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You can build a tap-to-play video player using a Raspberry Pi 5, Adafruit’s NFC Breakout and NFC cards. Full Tutorial: https://learn.adafruit.com/nfc-raspberry-pi-media-player
To play a movie, just tap an NFC card over the 3D printed case. A python script runs code that launches movies in the VLC media player.
The NFC cards are fitted inside a 3D printed case inspired by VHS cassette tapes.
This project aims to make the movie watching experience more special by creating a physical experience. No streaming networks or wifi necessary!
Raspberry Pi 5 8GB: https://www.adafruit.com/product/5813
NFC Breakout: https://www.adafruit.com/product/364
M.2 HAT+ https://www.adafruit.com/product/5902
Active Cooling Fan https://www.adafruit.com/product/5815
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Full tutorial: https://learn.adafruit.com/chinese-dragon-puppet-with-motion-reactive-flame-effect/overview
Make a Chinese Dragon puppet with a dramatic flame LED effect. The lights are motion-reactive so he lights up when you shake him. This project uses an Adafruit Circuit Playground Express with a built-in motion sensor and NeoPixel LED lights. The code is written in Microsoft MakeCode, an easy-to-use drag and drop code editor. (Or maybe in this case, a dragon-drop code editor.)
This is an easy beginner-level project that involves a little bit of soldering. You can download our code sample, or learn to make your own flame effects. This is a fantastic project to do with kids.
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Collin gives Alexa a new persona courtesy of the classic 2-XL trivia bot. Check out the full tutorial available here: https://learn.adafruit.com/echo-2-xl
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Tonight on Pseudorandom, special guest Phil Burgess speaks on the joys & meticulous details of prop recreation, miniature MAME arcades, and more.
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