This board is based on a PIC. The teensy is a AVR (and later ARM). You want to look here instead:<p><a href="https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;MechanicalKeyboards&#x2F;wiki&#x2F;firmware" rel="nofollow">https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;MechanicalKeyboards&#x2F;wiki&#x2F;firmware</a>