tdkf - TeensyDuino Keyboard Firmware

Simple functioning 6-key rollower matrix keyboard firmware for Teensy implemented in Teensyduino.

Requirements

Arduino IDE
Teensiduino installed into Arduino
Teensy USB-based microcontroller (See tested versions)

Configuration Variables

set up your own matrix and pinout
- buttonColumns[]
- buttonRows[]
keymap[][] - keyboard layout in respect to matrix.
- for details see documentation
pinDelay - time (in microsecconds) to wait for pin level change
- 10ms works with Teensy 4.0 and microswitches
- try to increase this slightly if you experience key registration artifacts
indicator LED
- led - pin for LED controll to which indicator LED is connected
- ledBase - "off" level of brightness for indicator LED
- ledOn - "on" level of brightness for indicator LED

Successfully Tested With

Teensy 4.0
Arduino IDE 1.8.10
Teensyduino 1.49-beta4

Notes

6-key rollower is limitation of USB Keyboard BOOT Protocol. Bigger rollower limit could be implemented via Raw HID.