Macro Key : HappyKeys (instagram facebook auto scroller, game macro, shortcut keyboard)

Macro Key : HappyKeys

Youtube instruction :



———————————— Parts ———————————

———————————— Tools ———————————

———————————— Instruction ————————–

———————————— About Maker ———————————


Preparing Materials

1. 3D Printing using 3d Modeling file

2. Buying some parts

3. Preparing some tools

4. Assembling

  1. Put a switch into upper case
  2. Put an Attiny85 board in the upper case
  3. Bend legs of switch toward the Attiny85 board
  4. Soldering
  5. Cover it
  6. Use your favorite keycap


  1. Download and Install Arduino IDE / Board setting
  2. Download a library for USB keyboard, USB mouse, USB media control simultaneously

    Because the library from Digispark is not enough to use. The main issue is we can’t send a keyboard signal and a mouse signal at the same time. Sending only keyboard or mouse signal is good enough for general situation. But sometimes, we need to use both keyboard and mouse together such as gaming situation.

  3. Unzip the file
  4. Copy “TrinketHidCombo” folder into your arduino library folder
  5. Open your Arduino IDE, copy and paste here’s code
  6. Upload the program to your board by following this order
    • Unplug the board
    • Click upload button of Arduino IDE
    • Wait until “Running Digispark Uploader … “ shows
    • Plug your board
    • Done.

    Notice : In order to upload program to Attiny85 board, you don’t need to select any port. Unplug your board.

Tweak it as your need

  1. Facebook / Instagram auto scrollerSource Code :
  2. Emergency Switch
    • MUTE and CLOSE a video player immediately just in case (Emergency Exit)

    When I was young, I would play a game often. Every time my mother suddenly enter into my room, I had to close the game immediately, pretended to watching a “Educational Program”. Sometimes I failed. Back then, I wished I could make this switch

  3. Game macro example

    My favorite game is starcraft. I am not good at macro control. For particular, manufacturing labor unit (SCV, Prove or Drone) or military unit such as tanks, marines. I made a macro key for this purpose. (note: only for single play)

  4. Letter example
  5. Shortcut key

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