14 Jan 2024

Signal Processing

• Aliasing and oversampling
• 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
• TinyML:  TensorFlow Lite on Arduino, STM32 and ESP32
• LED color rendering meta-analaysis
• Apple AirPod Pro as lame hearing aid

Arduino custom USB sketches

• e.g. for harness tensioning servos
  • ESP8266 WeMos D1 UNO R1 (background) is a COM device
  • COM ports work from SimHub, but most sim games expect DirectInput
    • SimHub directly supports real Arduinos,
      but can drive any COM port by SimHub Custom Serial devices
      Some ESP32 / STM32 may be programmed to appear as Arduino USB COM ports
  • Arduino IDE Alternatives
    • There are many.
    • Visual Micro supports debugging in Visual Studio
      (which I use e.g. for SimHub plugins)
      • in VisualStudio Marketplace
      • reviewed
      • Options using Visual Studio Code, a confusingly named editor, are discounted;  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

Audio

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

Cameras & lenses (Canon)

Chromebook

My GitHub Repositories

Microscopes and photomicography

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

MIDI wireless, including Android app - SimHub plugin

  Node.js WebSocket MIDI server

Sim driving

• 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
• ShakeSeat
• SimHub USB-attached PWM PC fans
• TH8A Thrustmaster shifter mods
• wheels for GT racing in VR

SimHub sim driving telemetry processing

• Custom serial profiles
• ShakeIt Bass Shaker Profiles

Virtual Reality (VR) and Mixed Reality (MR)

• OpenVR vs OpenXR
• Samsung Odyssey+ and HP Reverb for Assetto Corsa
  using SteamVR and Windows Mixed Reality (WMR)
• Virtual desktops, Immersed and vergence-accommodation conflict.
  Immersed has one of the better known remote collaboration software apps,
  and has opted, along with e.g. Somnium, to develop their own XR headset.
  While Immersed software seems more practical,
  their headset seems less credible than the Somnium VR1.

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

Windows

• Alienware Aurora R7 crashing and overheating
• Antec Phantom VR build   i5-13600, Galax RTX 4090
• HID game controllers and SimHub   Serial-Lab
• MSYS2
• PC misguided buying - January 2022
  • Flight Simulator 2020 and Alienware Area 51 R2
  • H670 ATX motherboards cannot underVolt
• Routers, modems and SAN:
  • Buffalo LinkStation 210
  • Sagemcom F@st 5260, FreshTomato and Linksys EA6500v2
  • Spectrum modem and router regressions
  • Synology DiskStation DS920+
• RTX3090
• Sound and VoiceMeeter, VST hosts and VST3 plugins
• Storage shortage:  Dell Inspiron 13 7000 2-in-1 Windows 10 NVMe SSD
• Vim and X-Mouse
• Visual Studio Community 2017 abuse:  shared installation
• Windows 10 boot from NVMe on PCIe PCs without NVMe BIOS

HVAC

• Air filtration

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COVID-19 plots

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