Tuesday, July 19, 2016

Teensy 3.0 = Even faster Van

 Handwired MiniVan Keyboard with Teensy 3.0

  •     PJRC Teensy3.0
  •     ARM Cortex-M4 (MK20DX128)
  •     48MHz clock speed
  •     3.3v logic
  •     TMK firmware
  •     Schottky diodes
  •     4x12 matrix
This is a hand wired keyboard running TMK on a Teensy 3.0 board.

A single matrix scan is about 76 microseconds. Which is about 13000 scans per second.

This is faster than the Teensy LC running the same code.

The Teensy 3.2 is even faster.

76microseconds per pass
Scan trace 76microseconds per pass

Teensy 3.0
 Teensy 3.0t

Hand wiring
Hand wiring

Assembled with keycaps
Assembled with DSA keycaps