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johnwcchau/README.md

john_at_harmon.hk

I do freelance, contact me at john_at_harmon_hk

  • Programming
    • firmwares / embedded
      • STM8
      • AVR
      • Arm Cortex-M
        • Bare-metal / FreeRTOS
      • Arm Cortex-A
        • u-boot
        • linux kernel driver
    • desktop / mobile / user-space software see below
  • Electronic Engineering (Eagle PCB / Cadance/Orcad )
    • I touched every product of HeadacheSound
      • 80% GA1.1
      • 60% PBA1
      • 50% OMNI
    • Most electronics for Oblisk Soundwork
    • Raspberry Pi CM4 "motherboard"
      • HDMI signals
      • PCIe / m.2 signals
      • 1GBASE-T switches
    • USB-PD 20V multiport charger
    • SBCs with Allwinner / Rockchip processors
    • Provided datasheets and specs I am confident to play with DDR layouts
  • Product Engineering (Solidworks)
    • OMNI (HeadacheSound)
      • Plastic moulding
      • Metal CNC
    • PC Cases
      • Sheet-metal
      • Fasteners mechanisms
    • Analog Watches

I write mostly back-end but front-end is also capable.

  • Android JAVA
    • sorry no Kotlin experience
  • C/C++
  • iOS Swift
  • C#
  • Python 3.9+
  • Javascript / Typescript / HTML5 / CSS3
  • PHP
  • .net core
  • ASP.net
  • VB6/ASP classic

I write many native codes, recent years I do many audio processing, Fresher from HeadacheSound is one of my work.

I do machine learning from 2021, not "top-notch", but definitely have experience.

  • sklearn pipelines
  • Boost/Bagging algorithm
  • Tensorflow / Pytorch
  • chatgpt / llama fine-tuning
  • stable-diffusions

Popular repositories Loading

  1. libretto libretto Public

    Drag-and-drop designer for machine learning

    JavaScript 4

  2. permission_handler_web permission_handler_web Public

    permission_handler_web

    Dart 2 3

  3. johnwcchau johnwcchau Public

    Config files for my GitHub profile.

  4. ABC ABC Public

    (: automatic bert clustering machine :)

    JavaScript

  5. Auth0Exercise Auth0Exercise Public

    React-Native + Auth0 Exercise

    JavaScript

  6. hmssdk_flutter_web hmssdk_flutter_web Public

    hmssdk_flutter_web

    JavaScript