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About this Episode
Welcome to the show
For detailed show notes and a transcript, visit TheBootloader.net
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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.
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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.
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 1990
- Developed at the University of Sussex by Adrian Thompson
- Used a XE6200 FPGA (100 gates - 10x10 FPGA)
- Project IceStorm is reverse engineering a modern FPGA
23:18 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.
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
Hosts & Guests
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