6 Feb 2023

Signal Processing

• DeltaWave vs Wave Corrector
• dimg - visual difference utility
• Hugin image alignment
• Special Error Diffusion
• Neighborhood Mask Dithered Interpolation
• Harry Niquist was not wrong but is misunderstood
• dither:  noise is not always bad

Audio

  Audio-Technica AT-LP140XP microphonics
  Altec Model 19
  Blu-Ray movies on Windows PC
  Line 6 JTV-89F guitar
  Technics SL-7 direct drive linear tracking turntable
  Thorens TD 160 MK II with SME Series III

Cameras & lenses (Canon)

Chromebook

MIDI wireless, including Android app - SimHub plugin

  Node.js WebSocket MIDI server

Microscopes and photomicography

  American Optical Series 10 / Series 120 / Reichert EPIStar
  Nikon Optiphot 66 / Optiphot 1 Metaphot

Microsoft

• MSYS2
• Visual Studio Community 2017 abuse:  shared installation
• PC misguided buying - January 2022
  • Flight Simulator 2020 and Alienware Area 51 R2
• Routers, modems and SAN:
  • Buffalo LinkStation 210
  • Sagemcom F@st 5260, FreshTomato and Linksys EA6500v2
  • Spectrum modem and router regressions
  • Synology DiskStation DS920+
• Vim and X-Mouse
• Windows 10 boot from NVMe on PCIe PCs without NVMe BIOS

Sim driving

• Samsung Odyssey+ for Assetto Corsa - SteamVR and WMR
• TH8A Thrustmaster shifter mods
• Logitech G29 pedal mods
  • STM32 - programmable USB dongle can be configured as HID gamepad
  • ESP8266 - CH340 USB chip can appear only as a COM port to Windows
  • analog pedals plugged into SimXperience AccuForce controller

Arduino custom USB STM32 Blue Pill sketches

• e.g. for harness tensioning servos

  • ESP8266 WeMos D1 UNO R1 (background) is a COM device
  • COM ports work from SimHub, but sim games expect HID DirectInput
    • SimHub directly supports real Arduinos,
      but any COM may be driven by SimHub Custom Serial devices
      Some ESP32 / STM32 may be programmed to appear as Arduinos

• USB-attached PWM PC fans

• Alternatives to Arduino IDE

  • There are many
  • Visual Micro supports debugging in Visual Studio
    (which I use e.g. for SimHub plugins)
    • in VisualStudio Marketplace
    • reviewed
    • I discount Visual Studio Code options;  it is a confusingly named editor, and I prefer GVim
  • Arduino Command Line Interface (Arduino-cli)
    • interesting, because configuration file options per folder or root folder

• STM32 Black Pill for more capable custom USB Arduino devices

• ESP32-S[2-3] for composite USB and wireless Arduino devices

vJoy C# SDK

• added to SimHub MIDIio plugin
• Windows Joystick HID shared with SimHub
• Windows 10 vJoy installation
  • Arduino VJoySerialFeeder - install
  • Arduino mi-360 Xbox360 controller emulation

cable modem downgrade

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COVID-19 plots

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GitHub Pages:  Jekyll Installation How-(not)-To

Windows 8.1 with GitHub Desktop and Git for Windows
Windows 10 with GitHub Desktop
Ubuntu on Windows (WSL) (or NOT) with SmartGit and its git-bash.exe
macOS High Sierra with MacPorts and SmartGit
  Git-Cola installed from MacPorts
  macOS local gitolite server

Notes:

1. Far easier to instead install Chrome extension Markdown Viewer
2. Unlike html pages, markdown pages (.md files) get URLs without .md
3. If no index.md, then Jekyll uses README.md for landing page
   Workaround:  Create index.md, which Jekyll will use instead
4. Jekyll expects UTF-8 character encoding, fails for BOM (Byte Order Mark) This was especially problematic with Jekyll style gem files on WSL...
   Workaround (using vim):

   :set nobomb
   :wq

5. IPv6 tends to be problematic, requiring Windows reboots:  Disabling IPv6 on Windows 10
6. Helpful URLs:
   GitHub Pages Documentation
   Jekyll Resources
   Jekyll Talk! forum
   Jekyll github and github-metadata

GitHub's Default welcome page - Markup tutorial
W3C Link Checker

GitHub repository for this markdown