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Printed a small rugged box so I can do microcontroller development on the road…

#electronics #3Dprinting

A 3D printed rugged box with a microcontroller and USB cable.
A 3D printed rugged box.
#electronics #3Dprinting

MIDI Guitar 🎸

I worked with Noe from Adafruit on this MIDI Guitar project. I wrote the code, he did the CAD and we collaborated on the concept and components.

Adafruit Learn Guide: https://learn.adafruit.com/mx-midi-guitar
Adafruit's Video: https://youtu.be/BDwOBYsL71Q
Project Progress Playlist on Diode Zone: https://diode.zone/videos/watch/playlist/6d2b7466-db36-4e41-b41e-0505a07ca528?videoId=19857ddc-0c7e-4de5-aadb-038bf5fb83a5

MX MIDI Guitar

Build a CircuitPython powered MIDI controller! 3D print the parts to build a guitar that features strumming and a whammy bar!
Ruiz Brothers (Adafruit)
#circuitpython #electronics #MIDI #music tech #guitar

Practising Permacomputing: Call for workshop participants

"This autumn is dedicated to Practising Permacomputing; a concept and a nascent community of practice-oriented around issues of resilience and regenerativity in computer and network technology derived, among others, from permaculture principles. As part of this community, space is offered to makers and thinkers in digital culture (and other connected areas) to put the fundamentals and applications of #permacomputing into practice through a series of workshops, a meetup, and a concluding day of public presentations with guests. Join us to explore permacomputing futures!"

https://www.fiber-space.nl/project/permacomputing/

#workshop #selfhosting #datacenter #recycling #electronics #plants #amsterdam

Reassemble Lab 5: Practising Permacomputing - FIBER

FIBER
#plants #electronics #selfhosting #datacenter #permacomputing #recycling #workshop #amsterdam


Fast Light, Slow Light and Optical Precursors: What Does It All Mean?

The speed of light in vacuum (c ≈ 3 × 108 m/s) is an important physical constant that appears in Maxwell’s theory of electromagnetis
Daniel J. Gauthier, Duke University, and Robert W. Boyd, University of Rochester (Photonics Media)
#electronics

3D V-EPROM ​:blobcatlul:​#electronics
A stack of several EPROM in DIP packages stacked together in a programmer, to allow programming multiple chips simultaneously.
Programming tool on a computer.
#electronics

Uncertainty Principle without quantum woo-woo - as a pulse becomes shorter in time domain, its spectrum gets fuzzier in the frequency domain, and vice versa. It's impossible to perfectly localize a signal in both time and frequency domain simultaneously simply due to how Fourier transform works. #electronics
Figure 6.4: The “spread” of a signal and its Fourier transform are inversely proportional. (a) A constant function in the time domain corresponds to a unit impulse (Dirac delta function) in the frequency domain. (b, c) As the width of a pulse in the time domain decreases, its spectrum in the frequency domain spreads (spectrum shown is schematic). (d) A unit impulse in the time domain has a spectrum which is a constant function.
From these equations we get the general Gabor Uncertainty Principle: ΔfΔt >= 1 It should be noted that such an uncertainty principle applies whenever we make simultaneous measurements of a function and its Fourier transform. The implications of Gabor’s principle are easier to understand by looking at it in “Fourier space,” where the abscissa reflects the time domain and the ordinate the frequency domain (Fig. 6.8). Then Gabor’s principle says that the spreads or uncertainties in the time and frequency measurements must define a rectangle in Fourier space whose area is at least 1. Thus we can decrease Δt and so localize it better in the frequency domain, or decrease Δf, and so localize it better in the frequency domain, but we cannot localize it arbitrarily well in both domains simultaneously. The most we can localize signals in the Fourier domain is into rectangles of size ΔfΔt = 1
Figure 6.8: Minimum possible localization of signal in Fourier space. The product of the nominal duration
#electronics

Fixing a Guitar Tuner Pedal

HMS87C1404B Datasheet(PDF)

Part #: HMS87C1404B. Download. File Size: 1MbKbytes. Page: 99 Pages. Description: 8-BIT SINGLE-CHIP MICROCONTROLLERS. Manufacturer: List of Unclassifed Manufacturers.
www.alldatasheet.com
#electronics #music tech #guitar pedal

Also, the ale Potato is a competent little Pi 3 B+ replacement for basic use cases. #raspberrypi #arm #relay #52pi #hat #maker #electronics #lepotato #sbc
#RaspberryPi #Maker #electronics #ARM #hat #relay #52pi #lepotato #sbc

Let's Test Some PCBs

GitHub - BlitzCityDIY/Modular_Melody_Maker: Files for the Modular Melody Maker project. Currently a work in progress.

Files for the Modular Melody Maker project. Currently a work in progress. - BlitzCityDIY/Modular_Melody_Maker
GitHub
#electronics #music tech #eurorack

To counterbalance @a1ba@suya.place's Elbrus posting... This is a Loongson 1C CPU board, an early low-speed SoC meant for embedded systems (0.13 µm, 300 MHz). The CPU implements the mips32r1 instruction set and part of mips32r2. It featured a out-of-order, dual-issue pipeline, with an additional 64-bit FPU. The CPU board only has a Samsung SDRAM and Micron Flash installed, meant to plugged into a devboard that I don't have, but it would be interesting to build a custom board and see if Linux boots... #mips#electronics
Front side of the CPU board, with a large QFP-176 chip marked "Loongson / LS1C0300A"
Back side of the CPU board, with DRAM, Flash, and pin headers visible.
Block diagram of the Loongson 1C SoC. A "GS232 CPU IP core" (aka Loongson core), a display controller, a camera port, and a SDRAM/SRAM is connected to a 64-bit "AXI" cross-bar switch. This is then connected to a AXI multiplier to other peripherals, including SPI, USB 2.0 OTG, Ethernet MAC, and MAC. Finally, a AXI to APB bridge offers access to ADC, WDT, RTC, PWM, I2C, UART, SDIO, I2S/AC97, NAND, CAN ports.
#electronics #mips @27329ed9-2211-a1ba-9371-e2641bf0dcb6

This open-hardware #microchip PIC16F1459 #microcontroller development system is designed to let learners go below the level of #Arduino and #pico systems to build deeper knowledge of hardware programming and interfacing. And, with a variety of components already on board, no breadboarding is required! Check it out: https://mirobo.tech/ubmp4

#electronics #microcontrollers #DIYelectronics #teaching #ComputerTech

UBMP4 is a simple, versatile microcontroller development system for PICmicro microcontrollers. — mirobo

mirobo
#Arduino #electronics #diyelectronics #pico #teaching #microchip #microcontroller #microcontrollers #computertech

FDTD really is a surprisingly simple algorithm. Its core is just 3 nested "for" loops, with two multiplications and a bunch of additions. Run it once to get the electric field from the magnetic field of the surrounding grids, and run again to do the opposite. Just this is enough to model all classical electromagnetism in the universe. #electronics
#electronics

It's Time to Design Some PCBs

Adafruit Pinguin for EAGLE CAD

Autodesk’s EAGLE has an ugly silkscreen problem, but we’re here to help! Buttery smooth TrueType fonts replace EAGLE’s retro-looking vector text.
Phillip Burgess (Adafruit)
#electronics #eurorack #music technology

It’s LED pixel hearts! It’s just a standard silicone candy mold I got in the clearance aisle, filled with colored epoxy, and some LEDs stuck in it. These are designed to go on my LED Tree. https://dominionofawesome.com/vca/ledtree/

#electronics #DIY #crafting
A green silicone candy mold, with colored epoxy in pixelated heart shapes. Popsicle sticks hold LEDs in place while the epoxy sets.
Close-up of one popsicle stick holding two LEDs in place.
Very close up view of one LED poking into a blue epoxy heart mold.

LED Tree

dominionofawesome.com
#DIY #electronics #crafting

Look at all this advanced #electronics reverse engineering. 😎
#theFoundry
A digital multimeter next to an unplugged portable soldering iron and an LED light chain with its transparent plastic box open, showing the PCB and the battery compartment.
Same open box with battery compartment and PCB, with a loose wire inside, whole thing sits on top of graph paper with ink sketches of guesses at what the connections inside the box might be. Next to them is a black pen with is cap on.
#electronics #theFoundry

Modular Melody Maker Build Log Three: Two Channels and LEDs

GitHub - BlitzCityDIY/Modular_Melody_Maker: Files for the Modular Melody Maker project. Currently a work in progress.

Files for the Modular Melody Maker project. Currently a work in progress. - BlitzCityDIY/Modular_Melody_Maker
GitHub
#electronics #music tech #eurorack

Modular Melody Maker 2 in/2 out Quantizer Demo
i wanted to have a good quality demo of the 2in/2 out quantizer progress for the modular melody maker aka not recorded with my phone. both ADC inputs are receiving a random waveform, the waveform is quantized and output through the DAC.

for the patch, braids is receiving one of the 1v/oct signals and is going into a VCA with a triangle wave CV signal. the output of the VCA is going into IN on rings. rings is getting the other 1v/oct signal along with a gate trigger on strum.
#circuitpython #electronics #eurorack

🎄 Festive Soldering 🔥
Fair Fight is a voting rights organization started by Stacey Abrams. They're currently putting their efforts into the Senate runoff election in Georgia on Tuesday, January 5th 2021. Find out more at their website: https://fairfight.com/

Brian Lough's Tindie Store: https://www.tindie.com/stores/brianlough/
TwinkleTwinkie's Tindie Store: https://www.tindie.com/stores/twinkletwinkie/

#soldering #pcbart #festivecircuits

Brian Lough on Tindie

Hey everyone! My name is Brian and thanks for checking my Tindie Store. I'm a software developer by trade but I've recently gotten into …
Tindie
#hardware #electronics #soldering #pcb art

Modular Melody Maker Build Log 1: Acknowledge and Accept the Spaghetti

Fund Texas Choice | Funding Texans' Travel to Abortion Clinics

Fund Texas Choice helps Texans equitably access abortion through safe, confidential, and comprehensive travel services and practical support.
Fund Texas Choice
#circuitpython #electronics #synth #eurorack #music technology

Content warning: Electronics question – LED resistors, boosts welcome

#electronics #diyelectronics #question

I'm Starting a New Project

Fund Texas Choice | Funding Texans' Travel to Abortion Clinics

Fund Texas Choice helps Texans equitably access abortion through safe, confidential, and comprehensive travel services and practical support.
Fund Texas Choice
#circuitpython #electronics #eurorack #1v/oct

Today’s “because we can”: powering antique telegraph equipment with a desk toy stirling engine. The engine produces about 400mA at 3v, which is just barely enough to actuate the voice coils on the receiver. If you listen carefully you can actually hear the engine slowing down as the load on the generator increases!

#electronics
#electronics

DIY FYI: Slow Changing RGB LEDs
I've been doing some testing with some slow changing RGB LEDs for an upcoming project and thought I'd share my findings related to their behavior when powered by a 2032 coin cell battery.
#tech #DIY #electronics #fun with lights #rgb led

DIY FYI: Making A Cassette Loop

Fund Texas Choice | Funding Texans' Travel to Abortion Clinics

Fund Texas Choice helps Texans equitably access abortion through safe, confidential, and comprehensive travel services and practical support.
Fund Texas Choice
#electronics #cassette #tape loop

Let's Talk About 1V/Oct

GitHub - BlitzCityDIY/1voctCircuitPython: 1V/Oct experiments with CircuitPython

1V/Oct experiments with CircuitPython. Contribute to BlitzCityDIY/1voctCircuitPython development by creating an account on GitHub.
GitHub
#circuitpython #electronics #eurorack #music technology

MIDI Over UART with Arduino and CircuitPython

GitHub - BlitzCityDIY/midi_uart_experiments

Contribute to BlitzCityDIY/midi_uart_experiments development by creating an account on GitHub.
GitHub
#electronics #MIDI #music tech

CLUE Step Counter 🔍🚶‍♀️
I wanted to try building a DIY step counter so that I could count my steps without an app.

Learn Guide: https://learn.adafruit.com/clue-step-counter-st-lsm6ds33

3D Printed Wearable Case by the Ruiz Brothers: https://www.thingiverse.com/thing:4170087

CLUE Step Counter with ST LSM6DS33

A DIY step counter using the CLUE board programmed with CircuitPython. An optional 3D printed case and band help hold it to your wrist.
Liz Clark (Adafruit)
#circuitpython #electronics #Wearables #clue

DIY Passive Mixer // Everything Went Wrong with this Build

Fund Texas Choice | Funding Texans' Travel to Abortion Clinics

Fund Texas Choice helps Texans equitably access abortion through safe, confidential, and comprehensive travel services and practical support.
Fund Texas Choice
#electronics #music tech #passive mixer

Push The Button // A Project Collaboration with Sophy Wong
Link to Sophy's channel: https://www.youtube.com/c/SophyWongMakes

Texas Equal Access Fund: https://fundtexaschoice.org/
The Lilith Fund: https://www.lilithfund.org/
Bans Off Our Bodies: https://docs.google.com/document/d/1gKM9-Gfplbo7GjbfynnZK5FlyvsJrbqe4myw-TKif8c/edit
Frontera Fund: https://fronterafundrgv.org/
West Fund: https://www.westfund.org/fronterizx
Clinic Access Support Network: https://www.clinicaccess.org/
The Bridge Collective: https://thebridgecollective.org/
The Afiya Center: https://www.theafiyacenter.org/

Sophy Wong

Maker, designer, geek, addicted to learning how to do new things! My videos are likely to include: design talk, electronics projects, digital fabrication like 3D printing, costuming, crafty stuff, VR/AR experiments, and special appearances by MIDI t…
YouTube
#circuitpython #electronics #ble

Favorite Dinosaur? // End of 2021 Q&A: A Blitz City Holiday Special

Fund Texas Choice | Funding Texans' Travel to Abortion Clinics

Fund Texas Choice helps Texans equitably access abortion through safe, confidential, and comprehensive travel services and practical support.
Fund Texas Choice
#electronics #MIDI #music tech

Favorite Dinosaur? // End of 2021 Q&A: A Blitz City Holiday Special

Bans Off Our Bodies!

What is happening right now? Senate Bill 8 is a new Texas law, passed earlier this summer, that goes into effect September 1. It bans Texans' access to abortion after 6 weeks (before most people know they are pregnant).
Google Docs
#electronics #MIDI #music tech

MIDI Stomp Pads // C Major Triad for Robot Xylophone
quick demo of the MIDI stomp pads project.

Learn Guide: https://learn.adafruit.com/midi-stomping-pads

MIDI Stomping Pads

This MIDI controller uses a Circuit Playground Express and CircuitPython to send MIDI notes. The interface is made with 3D printed squares and copper sticker sheets that press together with springs.
Liz Clark (Adafruit)
#electronics #MIDI #music tech

What is the Newt? Chatting with Darian Johnson

Newt: Always On, Low Power Digital Assistant

I'm tracking the build of a low power hackable display. The goal is to build an always on display that can be powered for 1 year (with typical use) before replacing batteries or recharging.
hackaday.io
#tech #DIY #hardware #electronics #newt

Preparing for Winter with Music Tech Projects

Collin's Lab: DIY Contact Mic - Make:

It's amazing what a little disk can do … when it's layered with piezoelectric crystals. Piezo disks are impressively sensitive to vibration and can easily be adapted to work as a contact microphones.
Collin Cunningham (Make: Community)
#electronics #music tech #synth #eurorack

matrix dreidel soldering timelapse
i timelapsed the wiring/soldering of a project i just finished up. it's a big RGB matrix dreidel game: https://learn.adafruit.com/rgb-matrix-dreidel-game

RGB Matrix Dreidel Game

Play this digital version of dreidel by dropping chocolate coins through a coin slot at the top of the RGB matrix. The dreidel will "spin" and if you win, the chocolate coins will be dumped out with a servo motor.
Liz Clark (Adafruit)
#timelapse #electronics #soldering

A Wild Raspberry Pi Zero 2 W Appears!

GitHub - BlitzCityDIY/piZero2W-releaseBenchmarks: Benchmark results for the release of the Raspberry Pi Zero 2 W

Benchmark results for the release of the Raspberry Pi Zero 2 W - BlitzCityDIY/piZero2W-releaseBenchmarks
GitHub
#electronics #raspberry pi

First chords with the robot xylophone
The first chords out of the robot xylophone. Running on an Adafruit ItsyBitsy nRF52840 with the CircuitPython BLE MIDI library. Notes played live with a MIDI keyboard going into my computer to send MIDI out via BLE. I'm on Windows and I really like using MIDIberry for this.
#circuitpython #electronics #MIDI #music tech #xylophone

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