Welcome to the show
For detailed show notes and a transcript, visit TheBootloader.net
Join our newsletter! Keep up with the show and what Paul and Tod are up to. Visit The Bootloader’s newsletter page to browse the archives or subscribe.
Welcome to our second guest, Kevin Santo Cappuccio, the creator of Jumperless.
6:20 The UNO Plus+ (Kevin #1)
The UNO Plus+ from John Loeffler is what the Arduino UNO should’ve been all along. It’s the same shape and hardware as the Arduino UNO, with the added bonus of LEDs on every pin to show you the state.
10:36 Manyfold (Paul #1)
Manyfold is a self-hosted solution to organize and share your files for 3D
printing. It’s also connected to the Fediverse, allowing you to follow instances (aka server) or
creators. You can run it in single-user mode or multi-user. You can also make files public or private,
which is great for saving models you might have paid for but don’t or can’t share publicly.
Suported file formats include 3MF, Blender,
FreeCAD, OpenSCAD, STEP, STL, OBJ, GCode, BMP, GIF, JPG, PNG, SVG, and even video files in MP4 or MPEG.
It also support Markdown, PDF, and text files.
FLOSS Weekly podcast episode with James Smith
13:52 Quake on a SparkFun Thing Plus Matter board (Tod #1)
next-hack.com got Quake running on a Feather-sized board
The folks at nexxt-hack.com have Quake running on a SparkFun Thing Plus Matter board.
This board is in the Feather format (0.9“ x 2“) and sports a MGM240P wireless module
for doing Bluetooth and Matter wireless protocols. This module also sports a EFR32MG24 chip,
which is a 32-bit ARM Cortex-M33 processor at 39 MHz, 1.5MB flash and 256 kB of RAM.
(This is essentially the same specs as the new RP2350 from RasPi, so maybe we’ll see Quake on an Adafruit Feather soon?)
After proving the idea using the SparkFun board, they designed a complete Quake-playing
gamepad with built-in screen, joysticks, sound, and battery.
This time using the Arduino Nano Matter board (which has a similar MGM240-series module on it) Oh also: you can do BLE-based multiplayer and it runs at 35 fps at 320 x 240.
SparkFun Thing Plus Matter board
Writeup on the Silabs.com tech blog
Next-hack gamepad using Arduino Nano Matter board
Next-hack gamepad design files
18:00 Evolvable Hardware (Kevin #2)
Been around since 1990Developed at the University of Sussex by Adrian ThompsonUsed a XE6200 FPGA (100 gates - 10x10 FPGA)Project IceStorm is reverse engineering a modern FPGA23:18 FlexiPi Kickstarter (Paul #2)
The FlexiPi is a new Raspberry Pi Pico with a few tricks up its sleeve. First - it’s flexible,
hence the name and wafer thin. It also includes a few upgrades from the original Raspberry Pi Pico, including using USB-C instead of Micro-USB and a programmable Neopixel built-in. Otherwise, the pinout stays the same as the popular Pico.
Kickstarter campaign
Tom’s Hardware coverage
Update Since recording, the FlexiPi Kickstarter project was suspended by Kickstarter and the reasons why are unknown. To stay updated on the project, you can sign up for their newsletter here.
25:11 EMMG MIDI Synth (Tod #2)
A hacker in our community, Johnathan Bisson / @bjonnh, created the
EMMG Midi Synth as
a teaching tool for a Workshop on MIDI and music synthesis at the
Pumping Station One hackerspace in Chicago
The workshop taught what MIDI is, from down at the signalling level to how it’s used by performers. The board each student got was custom-designed. It has 8 pots, 12 captouch pads, an OLED display and stereo audio out, all driven with a USB-C 16MB Pico clone. The workshop also talks about how GPIOs work and how capsense works. Looks like it was pretty great!
EMMG MIDI Synth homepage
Workshop notes
Workshop slides
Pra32-u synth engine
pico-test-synth – my test platform for playing with synths on a Pico
picoslidertoy
eight_by – my yet-to-used take of adding 8-pots to a single analog in using
analog mux chip
Enjoying the show? You can now sponsor the show, learn more at www.circuitpythonshow.com. Thank you for your support!
