среда, 21 октября 2026 г.

октября 21, 2026 0

This guide is about COSPLAY HACKS. Yeah, cosplay — dressing up as characters for conventions and social gatherings, parades, movie openings and Halloween — because this too has its small nuisances!

This Adafruit guide is not about electronics and code. There’s a bit of that, because computers touch everything these days, but the guide examines the broader topic with or without any particular tech.

What follows are over 100 hacks for cosplayers, ranging from “Level 1 basics” to “Wait, what?”



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октября 21, 2026 0

From the GitHub release page:

This is CircuitPython 11.0.0-alpha.2, an alpha release for 11.0.0. Further features, changes, and bug fixes will be added before the final release of 11.0.0.

CircuitPython libraries from the 10.x bundles are still compatible with CircuitPython 11.0.0 builds.

Highlights of changes since 11.0.0-alpha.1

  • storage.map_file allows directly reading a file from mapped flash.
  • usb_host_audio.USBIn to support USB microphones.
  • RGBMatrix supports ABC row addressing.
  • USB Host Bulk IN support.
  • Many speedups, especially in displayio.
  • Many firmware size reductions.
  • Espressif ESP32-S31 support.
  • Zephyr additions: analogio, bitbangio, neopixel_write, pwmio, rtc, and watchdog. Dynamic allocation of board buses.

Incompatibility warnings when upgrading to 11.0.0 from 10.x.x

  • The broadcom, litex, and renode ports have been removed.
  • The SDIO pin names on the Adafruit Feather Adalogger RP2040 and RP2350 boards were changed to be more consistent with the naming elsewhere.
  • On Espressif, the processor UID values are now in canonical order. This changes the reported processor ID, boot_out.txt value, and the USB serial number.
  • The en_x_pirate translation has been discontinued.

Download from circuitpython.org

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.

Installation

To install, follow the instructions in the Welcome to CircuitPython! guide. To install the latest libraries, see this page in that guide.

Try code.circuitpython.org or 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

Documentation is available on readthedocs.io.

Port status

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 considered stable (but see Known Issues below):

  • atmel-samd: Microchip SAMD21, SAMx5x
  • cxd56: Sony Spresense
  • espressif: Espressif ESP32, ESP32-C2, ESP32-C3, ESP32-C5, ESP32-C6, ESP32-C61, ESP32-H2, ESP32-S2, ESP32-S3
  • nordic: Nordic nRF52840, nRF52833
  • raspberrypi: Raspberry Pi RP2040, RP2350
  • stm: ST STM32F4 chip family

These ports are considered alpha and will have bugs and missing functionality:

  • analog: Analog Devices MAX32690
  • espressif: ESP32-P4, ESP32-S31
  • mimxrt10xx: NXP i.MX RT10xx
  • silabs: Silicon Labs MG24 family
  • stm: ST non-STM32F4 chip families
  • zephyr: multiplatform RTOS, running on multiple chip families

Changes since 11.0.0-alpha.1

Fixes and enhancements

  • Update frozen libraries. #11645. Thanks @dhalbert.
  • Faster 16-bit image output in displayio. #11633. Thanks @mikeysklar.
  • Fix dotclockframebuffer RGB display cache flush. #11632. Thanks @mikeysklar.
  • Fix dotclockframebuffer RGB vsync idle setting. #11631. Thanks @mikeysklar.
  • bitmaptools: readinto() now reads properly from streams, such as sockets. #11627. Thanks @lynt-smitka.
  • Reduce code size of number parsing in web workflow. #11626. Thanks @mikeysklar.
  • Faster computation in vectorio.Polygon, especially on Cortex-M0. #11623. Thanks @lynt-smitka.
  • Faster computation in synthio. #11621. Thanks @lynt-smitka.
  • Better and smaller number parsing in settings.toml. #11620. Thanks @mikeysklar.
  • Fix audiomixer phase inversion. Faster audiomixer computation on Cortex-M33. #11617. Thanks @lynt-smitka.
  • Accept capitalized UTF-8 as a string encoding name. #11594. Thanks @r3wretrhy.
  • Update TinyUSB. Includes Fruit Jam USB Host fix. #11582. Thanks @mikeysklar.
  • Allow ctrl-C to interrupt a program waiting for UART flow control. #11578. Thanks @mikeysklar.
  • Speed up OnDiskBitmap by using mapped flash. #11572. Thanks @lynt-smitka.
  • Fix bitbangio deinit. #11567. Thanks @dhalbert.
  • _bleio.Connection.disconnect() no longer crashes after the peer disconnects. #11560. Thanks @dhalbert.
  • lvfontio no longer locks the filesystem when reading a font. #11554. Thanks @lynt-smitka.
  • Fix crash when gifio.OnDiskGif is garbage collected after deinit(). #11551. Thanks @lynt-smitka.
  • Add usb_host_audio.USBIn to support USB microphones. #11547. Thanks @FoamyGuy.
  • Save space by consolidating uses of "CircuitPython". #11546. Thanks @mikeysklar.
  • Save space on small boards by removing some unused float print support. #11543. Thanks @mikeysklar.
  • Fix a crash after program stops when two displays are in use. #11542. Thanks @mikeysklar.
  • displayio: fix stray colors when pixel value is one past the end of its palette. #11541. Thanks @mikeysklar.
  • Save space in mbedtls by using fewer AES tables. #11534. Thanks @lynt-smitka.
  • Fix storage.unsafe_disable_usb_drive() to restore drive read-only/read-write state. #11530. Thanks @dhalbert.
  • Fall back to plain Python files (if available) when native or viper files can’t run on the board. #11529. Thanks @mikeysklar.
  • Save space in the root certificate bundle by storing only a partial hash of the DER subject name. Accept cross-signed roots. #11527. Thanks @lynt-smitka.
  • Fix storage.map_file after LittleFS addition. #11517. Thanks @tannewt.
  • Add mii module for wired Ethernet, on Espressif and on Zephyr boards with Ethernet. #11511. Thanks @tannewt.
  • Validate RGBMatrix constructor arguments. #11490. Thanks @ladyada.
  • RGBMatrix: add serial ABC row-addressing mode. #11486. Thanks @ladyada.
  • USB Host Bulk IN support. #11479. Thanks @FoamyGuy.
  • Add usb_cdc.set_names() to allow user-settable CDC interface descriptor names. #11473. Thanks @BroadwellConsultingInc.
  • Update ulab. #11469. Thanks @dhalbert.
  • FourWireBus displays now use ping-pong buffers. #11468. Thanks @lynt-smitka.
  • OnDiskBitmap is now much faster on rotated displays. #11465. Thanks @lynt-smitka.
  • Faster displayio: if the stack is large enough, use a larger CIRCUITPY_DISPLAY_AREA_BUFFER_SIZE. #11464. Thanks @lynt-smitka.
  • Faster displayio: composite common TileGrid rows without per-pixel calls. #11461. Thanks @lynt-smitka.
  • Add storage.map_file, which reads a file directly from memory-mapped flash. #11363. Thanks @lynt-smitka.

Port and board-specific changes

Analog Devices

  • Use GC finalizers to clean up objects. Remove never-reset and bulk-reset handlers. #11470. Thanks @tannewt.

Espressif

  • Save space by removing unneeded C++ support. #11629. Thanks @mikeysklar.
  • ESP32-S31 support. #11581. Thanks @mikeysklar.
  • Report BLE pair() failures. #11561. Thanks @dhalbert.
  • Fix _bleio.Adapter.connect() timeout and ctrl-C handling. #11559. Thanks @dhalbert.
  • Refuse BLE peer access to NO_ACCESS characteristics. #11558. Thanks @dhalbert.
  • Fix crash after creating a BLE service and restarting the VM. #11552. Thanks @dhalbert.
  • Report BLE GATT ATT errors as specific exceptions. #11550. Thanks @dhalbert.
  • Save space by turning off unused mDNS browsing. #11533. Thanks @lynt-smitka.
  • Save space by increasing error message compression on ESP32-C5 and ESP32-C6 boards. #11528. Thanks @mikeysklar.
  • Stop DotClockFrameBuffer jittering. #11522. Thanks @agent-nelson.
  • Turn on audio on ESP32-C6 boards that have room. #11521. Thanks @mikeysklar.
  • Update to ESP-IDF v6.1. #11513. Thanks @mikeysklar.
  • Fix BLE GATT read/write completion and timeouts. #11512. Thanks @dhalbert.
  • Add high-speed USB host support on ESP32-P4. #11501. Thanks @ladyada.
  • Report SDIO card frequency in Hz. #11499. Thanks @ladyada.
  • mipidsi: set output color format and preserve fractional pixel clocks. #11495. Thanks @ladyada.
  • Use canonical factory MAC value and order for processor UIDs, boot_out.txt, and USB serial numbers. Incompatible change. #11494. Thanks @ladyada-eagleclaw.
  • Restore ESP32-P4 ROM USB connection on bootloader reset. #11493. Thanks @ladyada.
  • Correct ESP32-P4 ADC2 channel mapping. #11492. Thanks @ladyada.

i.MX

  • Fix SPI clock and reinit. #11622. Thanks @lynt-smitka.
  • Use GC finalizers to clean up objects. Remove never-reset and bulk-reset handlers. #11485. Thanks @tannewt.

Nordic

  • Make microcontroller.nvm more consistently 8KB on most nRF52840 boards. #11571. Thanks @dhalbert.
  • Report GATT write errors and provide better exception messages for GATT ATT errors. #11553. Thanks @dhalbert.
  • Use GC finalizers to clean up objects. Remove never-reset and bulk-reset handlers. #11488. Thanks @tannewt.

RP2xxx

  • DVI audio. #11607, #11510. Thanks @mikeysklar.
  • The Feather Adalogger RP2040 and RP2350 SDIO pins were renamed for consistency. Incompatible change. #11584. Thanks @mikeysklar.
  • Reduce DVI audio RAM consumption significantly. DVI audio is now enabled by default. #11574. Thanks @mikeysklar.
  • Reset into safe mode instead of freezing after a hard crash involving flash. #11566. Thanks @mikeysklar.
  • Allow boards to limit RP2350 PSRAM clock frequency. #11565. Thanks @ladyada.
  • Make CIRCUITPY_FIRMWARE_SIZE be consistent with .ld sizes. #11535. Thanks @lynt-smitka.
  • Calculate PSRAM timing properly when changing CPU speed. #11516. Thanks @mikeysklar.
  • Prevent hang at startup due to PSRAM. #11506. Thanks @mikeysklar.
  • Allow 8 shared IRQ handlers. #11471. Thanks @lynt-smitka.
  • SDIO sync now waits for the SD card to finish. #11463. Thanks @mikeysklar.

SAMx

  • Fix SAMD21 bidirectional SPI DMA hang at 12 MHz and up. #11577. Thanks @dhalbert.
  • Save space by code refactoring. #11537. Thanks @dhalbert.
  • On SAMD21, save space by using smaller asm soft-float helpers. #11536. Thanks @lynt-smitka.

SiLabs

  • Fix make flash for SiWx917-DK2605A. #11589. Thanks @mikeysklar.
  • Use GC finalizers to clean up objects. Remove never-reset and bulk-reset handlers. #11470. Thanks @tannewt.

Spresense

  • Use GC finalizers to clean up objects. Remove never-reset and bulk-reset handlers. #11470. Thanks @tannewt.

STM

  • Fix crashes when heap accidentally overlapped the stack. #11610. Thanks @mikeysklar.
  • Use GC finalizers to clean up objects. Remove never-reset and bulk-reset handlers. #11487. Thanks @tannewt.

Zephyr

  • Add board.STEMMA_I2C() on appropriate boards. #11640. Thanks @dhalbert.
  • Restore board buses on non-nordic boards. #11638. Thanks @dhalbert.
  • Add board buses to nRF54 development boards. #11618. Thanks @dhalbert.
  • Faster USB CIRCUITPY writes. #11615. Thanks @mikeysklar.
  • Fix flash scratch page bugs. Fix RP2xxx flash layout. #11613. Thanks @dhalbert.
  • Add ItsyBitsy nRF52840. #11612. Thanks @dhalbert.
  • Load the CMake helper ExternalProject_Add for all builds. #11588. Thanks @mikeysklar.
  • Allow longer REPL pastes. Handle ctrl-C only from the console, not any UART. #11587. Thanks @mikeysklar.
  • Prevent losing USB console output. #11586, #11549. Thanks @mikeysklar and @dhalbert.
  • Fix incorrect readback of UART and USB-serial timeout values. #11585. Thanks @mikeysklar.
  • Report a USB serial number. #11579. Thanks @mikeysklar.
  • Dynamic board.I2C(), board.SPI(), board.UART() bus device assignment. #11576. Thanks @dhalbert.
  • CONSOLE=1 flag builds, which put the Zephyr console on the default UART pins. #11576. Thanks @dhalbert.
  • Report correct chip name and CPU frequency. #11575. Thanks @mikeysklar.
  • Fix various RP2xxx bugs. #11573. Thanks @mikeysklar.
  • Implement resetting into bootloader by changing the serial port speed to 1200 baud. #11570. Thanks @mikeysklar.
  • Implement bitbangio. #11568. Thanks @dhalbert.
  • Improve BLE error reporting by raising GATT ATT errors as specific exceptions. #11556. Thanks @dhalbert.
  • Enable native modules adafruit_pixelbuf and _pixelmap on boards with neopixel_write. #11538. Thanks @dhalbert.
  • Implement pwmio. #11525. Thanks @dhalbert.
  • Check for ctrl-C on console UART during Zephyr sleep. #11520. Thanks @tannewt.
  • Implement watchdog. #11518. Thanks @tannewt.
  • Remove nRF7002DK. #11511. Thanks @tannewt.
  • Provide nrfx PWM deinit hook. #11508. Thanks @dhalbert.
  • Fix native_sim asyncio and busio.SPI. Add SPI loopback tests. #11504. Thanks @lynt-smitka.
  • Implement rtc. #11491. Thanks @tannewt.
  • Integrate Adaboot. #11484, #11457. Thanks @tannewt.
  • Implement analogio. #11481. Thanks @tannewt.
  • Add neopixel_write. #11475. Thanks @dhalbert.

Individual boards

  • Adafruit Metro RP2350: enable picogame. #11474. Thanks @FoamyGuy.
  • Espressif ESP32-S31-Korvo-1: enable use of board display. #11630. Thanks @mikeysklar.
  • UARTLogger II: turn off EPaperDisplay to prevent firmware overflow. #11548. Thanks @mikeysklar.

Documentation changes

  • Generate an llms.txt file in the documentation root to give coding agents a compact map of every page. #11462. Thanks @lynt-smitka.

Build and infrastructure changes

  • Fetch micropython-lib for frozen modules during CI. #11624. Thanks @lynt-smitka.

Translation additions and improvements

  • Discontinue en_x_pirate translation. #11595. Thanks @dhalbert.

New boards

  • Adafruit Metro ESP32-P4. #11643. Thanks @ladyada and @tannewt.
  • Cytron Maker Sumo RP2350. #11545. Thanks @alifaiman-af (@CytronTechnologies).
  • Espressif ESP32-S31-Korvo-1. #11630, #11581. Thanks @mikeysklar.
  • Freenove ESP32 Display 3.5 inch. #11540. Thanks @agent-nelson.
  • Generic ESP32-S3 Supermini. #11563. Thanks @grgrant.
  • Waveshare ESP32-C5 LCD 1.47. #11480. Thanks @dglaude.
  • Waveshare ESP32-S3-Touch-LCD-1.69. #11532. Thanks @agent-nelson.
  • Waveshare ESP32-S3-Touch-LCD-2.1. #11523. Thanks @agent-nelson.

Known issues

Thanks

Thank you to all who used, tested, and contributed toward this release, including the contributors above, and many others on GitHub and Discord. Join us on the Discord chat to collaborate.



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октября 21, 2026 0

3D Hangouts – USB Desk Hub, Holiday Wreath and Caroline
https://youtube.com/live/_yM1B3QA7ok?feature=share

This week @adafruit Noe is showcasing his guide for his built-in USB hub for the Ikea MITTZON desk. Pedro is working on a new project inspired by the Apple HomeView. Checking out this week’s Timelapse Tuesday model of Caroline.

USB hub for Ikea Mittzon
https://learn.adafruit.com/4-port-usb-hub-for-ikea-mittzon-desk/

CH334F 4-port USB Hub Breakout
https://www.adafruit.com/product/5997

NeoPixel JST Breakout
https://www.adafruit.com/product/5975

Sparkle Motion Mini
https://www.adafruit.com/product/6160

Timelapse Tuesday:

Coraline flexi keychain By Goomol DIY
https://makerworld.com/en/models/3287084-coraline-flexi-keychain
https://youtu.be/QK_2sxMkSuo



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октября 21, 2026 0

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.

Please sign up > > >

Image



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октября 21, 2026 0

Pink Propeller made a Spotify Desk Thing and shared the build and the 3 simple rules dictating the build over on YouTube!

I was tired of having to click the function key and then three other buttons just to change the song so I decided to make my own version of the Spotify thing since I can’t buy the real thing.

See more



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понедельник, 19 октября 2026 г.

октября 19, 2026 0

A port proposal posted to the openbsd-ports mailing list brings Wine to OpenBSD. The sticking point had been %gs/gsbase, which OpenBSD does not let userland set. The workaround emulates the %gs prefix on instructions in software, and that opened the way for the rest of the port.

Several dozen 64-bit Windows programs have been tested, mostly working. The Witcher 3 remaster, released last month, runs with vkd3d-proton added. The main limitation is that WoW64 does not work, so 32-bit Windows software will not run at all. Check a binary with file(1): if it reports a 32-bit Intel 80386 PE, it is out. The built-in test suite is disabled for now because the tests need an X server and several hang.

The post suggests Notepad++ as a small 64-bit program to try first. It also recommends running Wine as a separate unprivileged user, with unveil(2) fencing still an open question. Contributions came from several OpenBSD developers and from people in the #openbsd-gaming IRC channel.

See more at marc.info and content on GitHub. Via Hacker News.



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октября 19, 2026 0

One of my favorite parts of the Halloween season is resurfacing media I haven’t watched or listened to since childhood – the more obscure the better! I vaguely remember renting various episodes of Tall Tales & Legends from our local video rental place (Video Update I think it was called?). The “The Legend of Sleepy Hollow” episode is a classic and features a young Ed Begley Jr. as Ichabod Crane. You can now watch the episode in full on YouTube via Lion Heart FilmWorks. What 80s/90s Halloween specials were your faves?



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