Keyboard Layout Editor http://www.keyboard-layout-editor.com/#/
Upload Hex file from Teensy 3.1 https://forum.pjrc.com/threads/28783-Upload-Hex-file-from-Teensy-3-1
How to get Hex File from Arduino - The Engineering Projects http://www.theengineeringprojects.com/2015/10/hex-file-arduino.html
Ubuntu 16.04 LTSで、ネット接続が頻繁に切れる - q999 http://k9q.hateblo.jp/entry/2016/07/23/220634
わーるどわいどうぇぶ