Not actively developing, still wish to revisit at some point.

Serial Mini is an original rework of my PS/2 mini keyboard to further reduce input latency. It sends keystrokes using RS232 at up to a 115k baud rate. The keystrokes are processed and registered by a Linux kernel driver. The driver first converts a TTY line into a serial port object, connects the serial keyboard, and registers keystrokes using an interrupt. Using this method, I could achieve a round-trip latency of up to ~0.5ms.

Features:

• Bootloader support (in-development)
• Integrated MAX232 (in-development)
• Hardware based switch debouncing
• RBG Backlighting with controls (in-development)

To-do:

• Remove unused libraries
• Double check connections
• Add measurements and example video
• Write firmware without using CCS