Happy Keys

Arduino Example) How to make | DIY Shortcut Keyboard (cheaper than $5)

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

Finally, I made this button. Even though I don't play a pc game anymore :)

[ Instruction ]

Youtube https://youtu.be/Y8Oh4aj96gU/
3D Model File https://www.thingiverse.com/thing:2777861/
Source Code https://github.com/happythingsmaker/HappyKeys/
Manual https://sites.google.com/view/100happythings/12-happykeys

[ Parts ]

https://eunchan.me/MACRO-KEY-d90c387cbe4245aa813cb100cc48b5e7

[ About the maker ]

Youtube http://youtube.com/EunchanPark

Download - Software Codes

https://github.com/happythingsmaker/HappyKeys

Preparing Materials

3D Printing using 3d Modeling file
- Download 3d model file from Thinggiverse
  - https://www.thingiverse.com/thing:2777861
- Printing
Buying some parts
- Keyboard switch,
- arduino board
Preparing some tools
- Soldering tools
- Glue

Assembling

Put a switch into upper case

Put the Attiny85 board in the upper case

Bend legs of switch toward the Attiny85 board

Soldering

Cover it

Use your favorite key cap

Programming

Download and Install Arduino IDE / Board setting

- Follow this instruction
- http://digistump.com/wiki/digispark/tutorials/connecting

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.

Unzip the file

learn.adafruit.com/trinket-usb-volume-knob/code

Copy “TrinketHidCombo” folder into your arduino library folder

Open your Arduino IDE, copy and paste this code

Upload the program to your board

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

Emergency

MUTE and CLOSE a video player immediately just in case (Emergency Exit)

- https://github.com/happythingsmaker/HappyKeys/blob/master/HappyKeyEmergencyExit/HappyKeyEmergencyExit.ino

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)

Produce labor unit