Blog 
  • Shito-Ryu Shodan, Kamakura, and Katas Still to Clean Up

    A black belt, a beach party, and a knee that finally listens most of the time.

    Published: 2026-08-12 View
  • Reviving a Parallel-Port Iomega ZIP Drive on Ubuntu 22.04

    Getting a SCSI-over-parallel-port drive from the 90s talking to a desktop that has never had an LPT port.

    Published: 2026-01-10 View
  • MCS-51 Real-World Interfacing - Infrared Data

    IrDA Interfacing.

    Published: 2025-11-24 View
  • MCS-51 Real-World Interfacing - Philips I2C

    EEPROM Interfacing.

    Published: 2025-11-23 View
  • MCS-51 Real-World Interfacing - Dallas 1 Wire

    Building a digital thermometer.

    Published: 2025-11-22 View
  • MCS-51 Real-World Interfacing - Dot-Matrix LCDs

    ST7920 LCD Controller interfacing.

    Published: 2025-11-18 View
  • MCS-51 Real-World interfacing - Character LCDs

    HD44780 LCD Controller interfacing.

    Published: 2025-11-17 View
  • MCS-51 Real-World interfacing - 7 Segment Displays

    7-segment displays.

    Published: 2025-11-15 View
  • MCS-51 Real-World interfacing - Basic User Interfaces

    Buttons and LEDs

    Published: 2025-11-01 View
  • MCS-51 UART

    Serial communication.

    Published: 2025-10-29 View