Adafruit Industries

This week on EYE ON NPI we're featuring some open source hardware from one of our favorite hardware manufacturers! It's the Arduino Nano R4 System on Module (https://www.digikey.com/en/product-highlight/a/arduino/nano-r4) a miniaturized version of the Arduino UNO R4 and Minima (https://blog.adafruit.com/2023/07/27/eye-on-npi-arduino-uno-r4-minima-and-uno-r4-wifi-boards-digikey-arduino-digikey-adafruit/) versions we covered on EYE ON NPI about two years ago! taking a cue from popular 'castellated single side' PCB proto boards on the market, the Nano comes in two options, one with headers (https://www.digikey.com/en/products/detail/arduino/ABX00143/26766495) for easy installation into existing Arduino Nano expansion kits or breadboards, and one with reflowable castellations (https://www.digikey.com/en/products/detail/arduino/ABX00142/26766490) The Arduino Nano (https://www.digikey.com/en/products/detail/arduino/A000005/2638989) is second only to the UNO as the definitive Arduino board that 'everyone got started with'. Many folks would start with the chunky UNO and then migrate to the Nano to get something that plugs into a breadboard for compact assembly. With a USB connector on one end, button and LEDs and programming header on the top, this board powered tens of thousands of builds. So it's not surprising that Arduino iterated on this design with a wide variety of chips like the RP2040 (https://www.digikey.com/en/products/detail/arduino/ABX00052/14123941) and ESP32 (https://www.digikey.com/en/products/detail/arduino/ABX00092/21219771) The latest generation is the Renesas RA4M1 series - which updates the original ATmega328 8-bit microcontroller to a beefy Cortex M4 with FPU. You get 48MHz clock, 256KB of Flash, 32KB of SRAM, ADC, DAC, CAN, captouch and other extras. The FPU in particular makes it a nice upgrade to the cortex M0/M0+. The best part is that with the 5V logic support of the R7FA4M1AB3CFM (https://www.digikey.com/en/products/detail/renesas-electronics-corporation/R7FA4M1AB3CFM-AA0/10447195), it makes for a great drop-in replacement when a 3V logic chip like the RP2040/ESP32 won't work as well. Plus you get lots of nice linear ADCs, the RP2040 only has 4 and the ESP32's are non-linear and sometimes don't work when WiFi is active. We also love that they added a Qwiic (https://www.sparkfun.com/qwiic) connector on the end! We use this for all our Stemma QT sensors, and between the many companies that have joined in the ecosystem there are easily a thousand different ons/displays/accessories that can plug in directly for instant expansion. If you want to get the latest Nano from the manufacturer of genuine Arduino boards, DigiKey is a authentic distributor and has tons of the Arduino Nano R4 (https://www.digikey.com/short/3brjrnjp) in stock right now for (https://www.digikey.com/en/products/detail/arduino/ASX00061/26744081) immediate shipment! Pick from the castellated flat or soldered-header variety, and don't forget to also grab some Arduino Nano accessories to get your design prototyped fast. Order today and your Nano will fly out of the DigiKey warehouse and arrive at your doorstep by tomorrow morning.

ASK AN ENGINEER 8/13/2025 LIVE Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

SHOW and TELL 8/13/2025

#newproducts JP's Product Pick of the Week 8/12/25 Adafruit bq25185 LiPo Battery Charger https://www.adafruit.com/product/6091 Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

#newproducts JP's Product Pick of the Week 8/12/25 Adafruit bq25185 LiPo Battery Charger https://www.adafruit.com/product/6091 Deep discount during livestream Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

#CircuitPythonDay2025 is this Friday, August 15th! Notes document is available here, with timecodes: https://github.com/adafruit/adafruit-circuitpython-weekly-meeting/blob/main/2025/2025-08-11.md Join here for the chat all week: http://adafru.it/discord 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 or view it in your browser: https://open-web-calendar.herokuapp.com/calendar.html?url=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. Reminders: Podcast available on most services. Let us know if we're missing some. 0:00 Housekeeping 01:18 Community News 03:24 State of CircuitPython, Libraries & Blinka 11:28 Hug Reports 13:19 Status Updates 18:35 Wrap-up Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

We saw this quick clip (https://x.com/digikey/status/1954146893854044558) - literally! - fly by on social media and thought it would be good to show people how they can get an even better result from a well-fitting heat-sink designed for TO-220s! DigiKey stocks lots of options, let's find the one that will get us the most heat sink-age for a great price. See the chosen part on DigiKey. https://www.digikey.com/short/pq1w5jwr ----------------------------------------- Visit the Adafruit shop online - http://www.adafruit.com LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Fresh drivers for Bosch BMP5xx sensors & LiPoly chargers, plus Particle Tachyon fun with web-console shell + Blinka support! Also, heat sink tips for TO-220s. This week at our desk we cranked through a whole mess of drivers. Starting with the BMP580/BMP581/BMP585 series, which had a proper Bosch driver library (https://github.com/boschsensortec/BMP5_SensorAPI) so we wrappered it with Claude (https://github.com/adafruit/Adafruit_BMP5xx) to make a nice Adafruit-y library with I2C/SPI and IRQ support. We plan to stock all three variants of the chip since the driver is the same for all. Then we cranked through the bq25628e (https://www.digikey.com/en/products/detail/texas-instruments/BQ25628ERYKR/21298592) which is a nice buck-mode LiPoly charger with I2C monitoring and up to 2A rate - the I2C driver (https://github.com/adafruit/Adafruit_bq25628e) was kinda long but it's nice to have monitoring built in so no separate lipoly gas gauge is needed. we're using this as practice while we try to get through the bigger/more complex bq25798 (https://www.digikey.com/en/products/detail/texas-instruments/BQ25798RQMR/15666783) driver (https://github.com/adafruit/Adafruit_bq25798). We also got more time to play with our Tachyon: one thing that is really impressive is the web-console shell access! It solves a common issue with Pi's where getting initial access can be frustrating. Using the PiStemma (https://www.adafruit.com/product/6365) and the Crickit instructions (https://developer.particle.io/tachyon/accessories/adafruit-crickit-hat) we are able to get Blinka + CircuitPython libraries going. We'll get those mainlined next week! And on The Great Search: TO-220 Heat Sink: https://youtu.be/uyvxSyJLR00

#circuitpythonparsec Use a Wii Classic/NES Classic/SNES Classic controller in CircuitPython with the wiichuck library! https://github.com/jedgarpark/parsec/blob/main/2025-08-07/code.py Learn about CircuitPython: https://circuitpython.org Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

2.66" 296x152 Monochrome or Gray eInk / ePaper - Bare Display - SSD1680 (0:10) https://www.adafruit.com/product/6392?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts 2.66" 296x152 Tri-Color Red / Black / White EInk - Bare Display - SSD1680Z Chipset (0:10) https://www.adafruit.com/product/6393?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts 3.7" 416x240 Monochrome Black/White eInk / ePaper - Bare Display - UC8253 Chipset (1:57) https://www.adafruit.com/product/6395?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts 3.7" 416x240 Tri-Color Red / Black / White eInk - Bare Display - UC8253 Chipset (1:57) https://www.adafruit.com/product/6394?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts 7.5" 800x480 Monochrome eInk / ePaper - Bare Display - UC8197 Chipset (2:33) https://www.adafruit.com/product/6396?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts Adafruit QMC5883P - Triple Axis Magnetometer - STEMMA QT (4:15) https://www.adafruit.com/product/6388?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts Adafruit NeoPot - Clear Shaft Potentiometer with RGB NeoPixel (5:10) https://www.adafruit.com/product/6387?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts ----------------------------------------- New nEw NEWs New Products, News, and more: https://www.adafruit.com/newsletter #newnewnew Shop for all of the newest Adafruit products: http://adafru.it/new Visit the Adafruit shop online - http://www.adafruit.com Adafruit on Instagram: https://www.instagram.com/adafruit LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

John Park's Workshop Live 8/7/25 Video Overlay JPPPoW recap CircuitPython Parsec tool tips gear report and more! Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

This week on EYE ON NPI we're working without wires - it's the new RM2 module from Raspberry Pi (https://www.digikey.com/en/product-highlight/r/raspberry-pi/radio-module-2-wireless-connectivity) which will let you add 2.4GHz WiFi / Bluetooth LE and Bluetooth Classic over an SDIO interface at a great price. The RM2 is built on the technology stack that Raspberry Pi has been working on for many years in adding built-in wireless to their microcomputers and microcontrollers. For example, starting with the Raspberry Pi 3 (https://www.digikey.com/short/59j9179b), the trading company has been integrating WiFi/Bluetooth to their single-board computers. With tight integration and onboard antenna, it's easy to bring up a new board with networking and native Linux kernel support. To do that, Pi has used the CYW43438 (https://www.digikey.com/short/8pfmdctc) and CYW43455 (https://www.digikey.com/short/99wr3vbq) which supports 2.4G and 5G. When the RP2040 microcontroller chip (https://www.digikey.com/short/bnh55qj4) was released in 2021 along with the Pico board (https://www.digikey.com/short/0p02nwh2) - a year later they came out with the Pico W (https://www.digikey.com/short/bzjt9bcp) for only a few $ more. Instead of trying to design an all-in-one WiFi microcontroller, Pi decided to go the same route they did with the Pi SBC: have a co-processor that adds wireless and then offer the firmware support to make it easy for folks to make IoT projects with a powerful arm Cortex chip. Not surprisingly, the RP2350's Pico 2 also came out with a Pico 2 W (https://www.digikey.com/short/ph2b4dmn) variant pretty quickly. Both W boards have a tinned radio module at the end, reminiscent of the CYW chipsets on the Pi SBCs - in this case they feature the CYW43439 (https://www.digikey.com/short/2tj7twdc) which can do 2.4 GHz WiFi/BT/BLE but not 5GHz to keep the price low. For folks who wanted to built upon the Pico W or 2W with their own design, integrating the CYW43439 (https://www.digikey.com/short/2tj7twdc) is non-trivial: it's a BGA chip which requires adding an antenna, managing traces and impedances as well as getting emitter certifications. So, it's not surprising that Pi trading has designed a standalone module that folks can solder into their designs to take advantage of the high-integration between the RP2 chipset and the CYW43439. The RM2 module (https://www.digikey.com/short/vp58vnh3) comes with antenna, tin and chunky castellated pads that can be pick-and-place'd or hand soldered. We've already seen this module used in some existing designs like the Pico Plus 2W from Pimoroni (https://www.digikey.com/short/rpjcp849). Communication with the CYW43439 (https://www.digikey.com/short/2tj7twdc) inside the module is done over SPI plus some IRQ and reset lines. Note that while, in theory, you could connect this module to any microcontroller with a TCP/IP stack like lwip, it really is only designed and supported with RP2-series microcontrollers. That's because the Pico SDK (https://www.raspberrypi.com/documentation/pico-sdk/networking.html) which integrates the firmware uploading and WiFi stack is not really portable to other microcontrollers and there's a cyw32-driver (https://github.com/georgerobotics/cyw43-driver) that is not open source. We did notice that there's an 'open source' reverse-engineered driver on github (https://github.com/jbentham/picowi) - experimentation will be required for those interested! Bluetooth is more freely licensed via BTStack (https://github.com/bluekitchen/btstack) If you want to add the new RM2 module from Raspberry Pi (https://www.digikey.com/en/product-highlight/r/raspberry-pi/radio-module-2-wireless-connectivity) to your next RP2xxx microcontroller design, for tried-and-tested wireless with lots of platform support, you can pick up some right now from DigiKey! Order today and your fresh modules will ship instantly so you can start integration by tomorrow afternoon. https://www.digikey.com/short/vp58vnh3

This week @adafruit Pedro published his 3D printed snap fit case for the Adafruit USB-C fixer. Noe shared his new enclosure design for the MagTag 2025 edition. Also quick look at Fruit Jam. The code for the MIDI keyset controller is finalized and ready for a demo! Time lapse this week features a fidget of Ferroseed designed by Bruddz. USB-C Fixer https://www.adafruit.com/product/6323 Fruit Jam https://www.adafruit.com/product/6200 MagTag 2025 Edition https://www.adafruit.com/product/4800 KB2040: https://www.adafruit.com/product/5302 Timelapse Tuesday Fidget Ferroseed By Bruddz https://makerworld.com/en/models/1591665-fidget-ferroseed https://youtu.be/Sl2iq8B7I1g CircuitPython Day 2025 https://blog.adafruit.com/2025/07/28/circuitpython-day-is-august-15-2025/ Community Makes https://www.printables.com/model/7152-3d-printed-unicorn-horn/comments https://www.printables.com/make/2766198?comment_id=2766198

ASK AN ENGINEER 8/6/2025 LIVE! Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ ----------------------------------------- #adafruit #qualcomm #qualcommsnapdragon

SHOW and TELL 8/6/2025

#newproducts JP's Product Pick of the Week 8/5/25 NeoMatrix 8x8 NeoPixel Panel https://www.adafruit.com/product/1487 Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

#newproducts JP's Product Pick of the Week 8/5/25 NeoMatrix 8x8 NeoPixel Panel https://www.adafruit.com/product/1487 Deep discount during livestream Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Adafruit USB Type C CC Resistor Fixer is designed to remedy missing 5.1k resistors to your USB-C device ! Guide: https://learn.adafruit.com/resistor-fixer-case Simply plug it in between the USB C cable and the device. It's great for those gadgets that don't work on every USB-C power outlet or charger. Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Every week we'll 3D print designs from the community and showcase slicer settings, use cases and of course, Time-lapses! This Week: Fidget Ferroseed By Bruddz makerworld.com/en/models/1591665-fidget-ferroseed Bambu X1C Polymaker PLA 8hr 31mins X:139 Y:144 Z:27mm .2mm layer / .4mm Nozzle 10% Infill / 1mm Retraction 200C / 60C 53g 230mm/s ----------------------------------------- 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: https://www.youtube.com/playlist?list=PLjF7R1fz_OOWD2dJNRIN46uhMCWvNOlbG 3D Hangout Show Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVgpmWevin2slopw_A3-A8Y Layer by Layer CAD Tutorials Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVsMp6nKnpjsXSQ45nxfORb Timelapse Tuesday Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVagy3CktXsAAs4b153xpp_ Connect with Noe and Pedro on Social Media: Noe's Twitter / Instagram: @ecken Pedro's Twitter / Instagram: @videopixil ----------------------------------------- Visit the Adafruit shop online - http://www.adafruit.com/?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting Subscribe to Adafruit on YouTube: http://adafru.it/subscribe Adafruit Monthly Deals & FREE Specials https://www.adafruit.com/free?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting Join our weekly Show & Tell on G+ Hangouts On Air: http://adafru.it/showtell Watch our latest project videos: http://adafru.it/latest?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting 3DThursday Posts: https://blog.adafruit.com/category/3d-printing?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting New tutorials on the Adafruit Learning System: http://learn.adafruit.com/?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting Music by Dan Q https://soundcloud.com/adafruit -----------------------------------------

ESP-NOW running on CircuitPython -- John Park Learn Guide coming soon. Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

#circuitpythonparsec Find out your board's MAC address _from inside the code_ in CircuitPython! https://github.com/jedgarpark/parsec/blob/main/2025-07-31/mac_address_code.py Learn about CircuitPython: https://circuitpython.org Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

John Park's Workshop Live 7/31/25 ESP-NOW basics JPPPoW recap CircuitPython Parsec tool tips gear report and more! Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

24-pin 0.5mm pitch FPC Flex A-B (D) type Cable - 250mm long (0:08) https://www.adafruit.com/product/6386 24-pin 0.5mm pitch FPC Flex A-B (D) type Cable - 100mm long (0:08) https://www.adafruit.com/product/6385 24-pin 0.5mm pitch FPC Flex A-B (D) type Cable - 50mm long (0:08) https://www.adafruit.com/product/6384 2.13" 250x122 Monochrome or Gray eInk / ePaper - Bare Display - SSD1680Z Chip (0:36) https://www.adafruit.com/product/6383 4.2" 300x400 Monochrome or 4-Gray eInk / ePaper - Bare Display - SSD1683 (1:23) https://www.adafruit.com/product/6381 4.2" 300x400 Tri-Color eInk / ePaper - Bare Display - SSD1683 (1:23) https://www.adafruit.com/product/6382 Adafruit Fruit Jam - Mini RP2350 Computer (2:55) https://www.adafruit.com/product/6200 Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- New nEw NEWs New Products, News, and more: https://www.adafruit.com/newsletter #newnewnew Shop for all of the newest Adafruit products: http://adafru.it/new Visit the Adafruit shop online - http://www.adafruit.com Adafruit on Instagram: https://www.instagram.com/adafruit LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

This week's EYE ON NPI is all about isolation (https://www.youtube.com/watch?v=6x-Nl3_L1pA), it's the XP Power PBT02F Series 2 W DC/DC Converters with SMD Footprint (https://www.digikey.com/en/products/base-product/xp-power/1470/PBT02F/737947)! A compact and easy way to add power isolation to your design without having to muck around with transformer matching and isolation testing. We've covered lots of power supply solutions on EYE ON NPI (https://blog.adafruit.com/tag/eye-on-npi/) including bucks (https://www.youtube.com/watch?v=sEoM5vUjwwI), boosts (https://www.youtube.com/watch?v=2NJzL0jCmfU) and even buck-boosts (https://blog.adafruit.com/2024/08/09/eye-on-npi-analog-devices-max77859-buck-boost-converter-eyeonnpi-digikey-digikey-adi_news/) but we haven't yet covered an isolating chip/module. However, they're so useful when you want to make sure that your electronics are not connected directly to a power supply or Earth ground. This could be for safety reasons: you want to make sure that there is no way for a high voltage from the input to somehow make its way into the output. Or it's used to make sure that a DAQ doesn't have a ground loop. Or maybe you're measuring/controlling a high voltage system from a low voltage - isolating power and data is essential. And speaking of, we often do have to isolate both data and power! Remember that digital and analog signals are always ground referenced so it's no good to have just data or just power isolation: you need them both! Data isolation is a lot easier than power though: you can use optical a-la your common optoisolator (https://www.digikey.com/en/products/category/optocouplers-optoisolators/2058), capacitive (https://www.adafruit.com/product/4903), or even chip scale micro-transformers (https://blog.adafruit.com/2024/03/14/eye-on-npi-analog-devices-adum1252-3-bidirectional-i%C2%B2c-isolators-eyeonnpi-digikey-digikey-adi_news-adafruit/). We have more flexibility because we only have to transfer signal, not actual power: all of those techniques assume that the 'opposite side' of the converter has isolated power ready to go. But that means that we have to do the hard part of actually transferring power over an air-gap. Now if you happen to be isolating AC power, say from 120V or 240V AC mains, this is super easy: just stick a transformer on there (https://en.wikipedia.org/wiki/Transformer) and you'll magically get isolation with the benefit of also being about to step up or down the voltage. But transformers don't work with DC, so what engineers have to do is create a buck/boost converter that uses a transformer instead of a plain inductor, thus creating the isolated flyback (https://www.xppower.com/storage/documents/technical-articles/PSUTopologies.pdf), a low cost way to transfer a couple watts. The XP Power PBT02F Series (https://www.digikey.com/short/5nh10cq0) come in a few variants, thanks to the built-in buck/boost converter topology. You can input voltages from 3 to 24VDC and get 3 to 15V out. There are even versions with 'split' dual outputs: a nice bonus from having a mid-tapped transformer (https://en.wikipedia.org/wiki/Center_tap) that can give you a centered ground reference. And one of my favorite things about it is that the whole transformer-DC/DC comes in a mini sealed pick-and-placeable package that is only 0.5" x 0.42" x 0.35", about the size of a coffee bean! Note the dual-output version is a little chunkier at 0.6" long - maybe like a chocolate-covered coffee bean. If you need a ultra-compact isolating power supply solution with buck or boost capabilities, the XP Power PBT02F Series (https://www.digikey.com/short/5nh10cq0) is going to satisfy your requirements! Available in a variety of options (https://www.digikey.com/en/products/base-product/xp-power/1470/PBT02F/737947), we're going to check out the PBT02F05S05 5V in/out (https://www.digikey.com/short/5nh10cq0) for our next USB isolation project. Best of all, it's in stock right now for immediate shipment from DigiKey! Order today and you will be designing and testing your power supply by tomorrow morning.

Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ ----------------------------------------- #adafruit #lifeisbutadream #3dprinting

This week @adafruit Pedro has an SLA 3D print of his current booster snap fit case. Noe has updates to his slim snap fit case for the Fruit Jam. Making progress on the code for the new MIDI keyset controller. Time lapse this week was a request from PT of the Epoch spaceship from Chrono Trigger. TSP61169 Current Boost https://www.adafruit.com/product/6354 Fruit Jam: https://www.adafruit.com/product/6200 KB2040 https://www.adafruit.com/product/5302 Timelapse Tuesday Epoch Chrono Trigger By Kylanm https://www.thingiverse.com/thing:807476 https://youtu.be/xXPEJ8VKYBc Community Makes https://www.printables.com/make/2759516?comment_id=2759516

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.

#newproducts JP's Product Pick of the Week 7/30/25 RECAP HSTX DVI/HDMI Output PiCowBell for Pico/Pico 2 https://www.adafruit.com/product/6363 Deep discount during livestream Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

#newproducts JP's Product Pick of the Week 7/29/25 HSTX DVI/HDMI Output PiCowBell for Pico/Pico 2 https://www.adafruit.com/product/6363 Deep discount during livestream Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Every week we'll 3D print designs from the community and showcase slicer settings, use cases and of course, Time-lapses! This Week: Epoch Chrono Trigger By Kylanm https://www.thingiverse.com/thing:807476 Bambu X1C Polymaker PLA 45hr 46mins X:239 Y:239 Z:99mm .2mm layer / .4mm Nozzle 10% Infill / 1mm Retraction 200C / 60C 332g 230mm/s ----------------------------------------- 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: https://www.youtube.com/playlist?list=PLjF7R1fz_OOWD2dJNRIN46uhMCWvNOlbG 3D Hangout Show Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVgpmWevin2slopw_A3-A8Y Layer by Layer CAD Tutorials Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVsMp6nKnpjsXSQ45nxfORb Timelapse Tuesday Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVagy3CktXsAAs4b153xpp_ Connect with Noe and Pedro on Social Media: Noe's Twitter / Instagram: @ecken Pedro's Twitter / Instagram: @videopixil ----------------------------------------- Visit the Adafruit shop online - http://www.adafruit.com/?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting Subscribe to Adafruit on YouTube: http://adafru.it/subscribe Adafruit Monthly Deals & FREE Specials https://www.adafruit.com/free?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting Join our weekly Show & Tell on G+ Hangouts On Air: http://adafru.it/showtell Watch our latest project videos: http://adafru.it/latest?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting 3DThursday Posts: https://blog.adafruit.com/category/3d-printing?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting New tutorials on the Adafruit Learning System: http://learn.adafruit.com/?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting Music by Dan Q https://soundcloud.com/adafruit -----------------------------------------

Notes document is available here, with timecodes: https://github.com/adafruit/adafruit-circuitpython-weekly-meeting/blob/main/2025/2025-07-28.md 2:40 Community News 7:54 State of CircuitPython, Libraries and Blinka 16:50 Hug reports 20:40 Status Updates 28:47 In The Weeds 33:10 Wrap-Up 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 or view it in your browser: https://open-web-calendar.herokuapp.com/calendar.html?url=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. Reminders: Podcast available on most services. Let us know if we're missing some. ----------------------------------------- Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

#circuitpythonparsec How to set GPIO pins to input with pull in one line. https://github.com/jedgarpark/parsec/blob/main/2025-07-24/code.py Learn about CircuitPython: https://circuitpython.org Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

We've received several requests to update our low/full-speed USB isolator breakout, which used the ADUM4160. Low speed is for peripherals like mice and keyboards, where bandwidth demands are minimal. Full speed suits microcontrollers, audio interfaces, and simple USB accessories. High speed is needed for flash drives, video devices, data acquisition units, and external disks. Unsurprisingly, there's demand for high-speed isolation. We're now exploring USB isolation ICs that support high-speed performance. Stay tuned! See how Ladyada chooses the part on DigiKey Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ ----------------------------------------- #technology #electronics #engineering #gadgets #innovation

GPIO Stacking Header for Pi A+/B+/Pi 2/Pi 3 - Extra-long 2x20 Pins (0:55) https://www.adafruit.com/product/2223 Ultra Flexible LED Ribbon Strip - 30mm Wide - 1 Meter long - Neutral / Natural White ~4000K (1:40) https://www.adafruit.com/product/6127 Ultra Flexible LED Ribbon Strip - 30mm Wide - 1 Meter long - Cool White ~6000K (1:40) https://www.adafruit.com/product/6128 Adafruit MagTag - 2.9" Grayscale E-Ink WiFi Display - 2025 Edition with SSD1680 (4:07) https://www.adafruit.com/product/4800 Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- New nEw NEWs New Products, News, and more: https://www.adafruit.com/newsletter #newnewnew Shop for all of the newest Adafruit products: http://adafru.it/new Visit the Adafruit shop online - http://www.adafruit.com Adafruit on Instagram: https://www.instagram.com/adafruit LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Last week, we conducted a Great Search for a clear shaft linear potentiometer. This week, the prototypes arrived—and they work great! We're also beginning work on the FruitJam Tester. We'll be showing the finalized silkscreen, the cover plate we designed, and the expected form factor of the tester itself. Additionally, we wrapped up a library for a QMC5883 breakout. This chip serves as a drop-in replacement for the now-discontinued HMC5883. It's frequently found in quadcopter builds, so we thought it would be a great candidate for a simple magnetometer breakout.

John Park's Workshop Live 7/24/25 ESP-NOW Juggling project JPPPoW recap CircuitPython Parsec tool tips gear report and more! Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

This week @adafruit Pedro released the 3D printed chatsubo bar sign using LED noodles powered by the Adafruit Current Boost Breakout. Noe is prototyping a slim snap fit case for the upcoming Fruit Jam. Quick look at his new MIDI keyset controller. Time lapse this week still in full Halloween mode featuring a morbid nesting doll. LED Noodle Learn Guide https://learn.adafruit.com/nood-booster-case LED Noodle YouTube Video https://youtu.be/6xzU_Qd59TA TSP61169 Current Boost https://www.adafruit.com/product/6354 Fruit Jam https://www.adafruit.com/product/6200 Timelapse Tuesday Morbid Nesting Doll By abroerman https://makerworld.com/en/models/1085034-matryoshka-muerta-a-morbid-nesting-doll#profileId-1077662 https://youtu.be/uMgb2o17d0o

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.

#newproducts JP's Product Pick of the Week 7/22/25 Adafruit Pi STEMMA QT Breakout for Raspberry Pi and Compatibles https://www.adafruit.com/product/6365 Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Print a case for the Adafruit TPS61169 Constant Current Boost Converter for LEDs! Guide: https://learn.adafruit.com/nood-booster-case The case has cutouts for the terminal blocks to attach LED nOOds, and cutouts for the current adjustment switches -- useful when powering multiple strips. Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- 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: https://www.youtube.com/playlist?list=PLjF7R1fz_OOWD2dJNRIN46uhMCWvNOlbG 3D Hangout Show Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVgpmWevin2slopw_A3-A8Y Layer by Layer CAD Tutorials Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVsMp6nKnpjsXSQ45nxfORb Timelapse Tuesday Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVagy3CktXsAAs4b153xpp_ Connect with Noe and Pedro on Social Media: Noe's Twitter / Instagram: @ecken Pedro's Twitter / Instagram: @videopixil ----------------------------------------- Visit the Adafruit shop online - http://www.adafruit.com/?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting Subscribe to Adafruit on YouTube: http://adafru.it/subscribe Adafruit Monthly Deals & FREE Specials https://www.adafruit.com/free?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting Join our weekly Show & Tell on G+ Hangouts On Air: http://adafru.it/showtell Watch our latest project videos: http://adafru.it/latest?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting 3DThursday Posts: https://blog.adafruit.com/category/3d-printing?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting New tutorials on the Adafruit Learning System: http://learn.adafruit.com/?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting Music by Dan Q https://soundcloud.com/adafruit -----------------------------------------