This site is all about homebrew 8-bit retro computers.

Software projects

• Example code
  • Alphanumeric LCD (4-bit parallel)
  • I2C using SC126 and PCF8574
  • I2C demo version 2
  • Simple Z80 SIO test program

• Small Computer Monitor

• Small Computer Workshop

• Small Computer Monitor Apps

Hardware projects

• RCBus Systems:
  • Backplanes:
    • SC701 – Modular Backplane 6+1, 5 volt input
    • SC702 – Modular Backplane 6+1
    • SC709 – Modular Backplane 12+1, 5 volt input
    • SC710 – Modular Backplane 12+1
  • Modules:
    • SC703 – Power Supply Module, 12 volt input
    • SC704 – I2C Bus Master Module
    • SC705 – Serial ACIA Module
    • SC706 – Z80 CPU Module
    • SC707 – Z80 Memory Module, 128k
    • SC708 – Z80 SBC Module
    • SC709 – Modular Backplane 12+1, 5 volt input
    • SC710 – Modular Backplane 12+1
    • SC711 – Prototyping Module
    • SC712 – Power Module, 5 volt input
    • SC713 – Tool for RCBus
    • SC714 – Z80 Memory Module, 512k
    • SC715 – Compact Flash Module
    • SC716 – Z80 SIO/2 Module
    • SC717 – Z80 PIO Module
    • SC718 – Z80 CTC Module
    • SC719 – Digital I/O Module
  • Motherboards:
    • SC720 – Z80 SBC / motherboard

• Standalone Systems:
  • SC131 – Z180 Pocket-sized Computer

• LiNC Z50Bus System (SC500 series)
  • SC500 – Modular Z50Bus System
  • Backplanes:
    • SC501 – 7-slot Backplane, narrow spacing
    • SC507 – 3-slot Backplane, narrow spacing
    • SC508 – 10-slot Backplane, wide spacing
    • SC513 – Modular Backplane with 5-volt in and reset
    • SC515 – 14-slot Backplane, narrow spacing
    • SC517 – Modular Backplane, RC2014 to Z50Bus
    • SC522 – Modular Backplane, narrow spacing
  • Cards:
    • SC502 – Power and Reset Card, 12V input
    • SC503 – Z180 Processor Card
    • SC504 – Compact Flash Interface Card
    • SC505 – Real-Time Clock Card
    • SC506 – Digital I/O Card
    • SC509 – Z80 PIO (Parallel I/O) Card
    • SC510 – Prototyping Card
    • SC511 – Serial and Timer Card (SIO + CTC)
    • SC512 – Prototyping Breakout Card
    • SC514 – Z80 CTC Card
    • SC516 – Z80 Processor Card (CPU, memory, clock)
    • SC518 – Z80 CPU Card
    • SC519 – Z80 Memory Card (128k+128k)
    • SC520 – Serial ACIA Card
    • SC521 – Z80 SIO/2 Card
    • SC523 – Programmable ‘ROM’ Card
    • SC526 – Power supply and reset card, 5V input
    • SC527 – Z80 Processor Card

• LiNC Z50Bus System (older designs)
  • Backplanes:
    • SC109 – Modular Backplane for Z50Bus & RC2014+
    • SC128 – Modular Backplane for Z50Bus
  • Cards:
    • SC117 – Breakout Card
    • SC118 – Z80 Processor Card
    • SC125 – Serial and Timer Card
    • SC127 – Compact Flash Card
    • SC140 – Z180 Processor Card
    • SC144 – RTC and I2C Card

• RC2014 System
  • Backplanes: (40-pin)
    • SC133 – Modular Backplane
    • SC141 – Modular Backplane
    • SC147 – Modular Backplane
  • Modules: (RC2014 standard profile)
    • SC102 – Z80 CTC Module
    • SC103 – Z80 PIO Module
    • SC104 – Z80 SIO/2 Module
    • SC108 – Z80 Processor Module
    • SC110 – Z80 Serial Module
    • SC115 – Breakout Module
    • SC129 – Digital I/O Module
    • SC132 – Z80 SIO/0 Module
    • SC152 – Memory module
    • SC153 – Z80 CPU Module
  • Modules: (RC2014 low profile)
    • SC134 – LED Output Module
    • SC135 – Digital Output Module
    • SC136 – Digital Input Module
    • SC137 – I2C Bus Master Module
    • SC139 – Serial 68B50 Module
    • SC142 – Power Supply Modulle
    • SC143 – ROM Module
    • SC149 – Z80 CPU Module
    • SC150 – Paged RAM Module
    • SC151 – Paged ROM Module
  • Motherboards and SBCs:
    • SC101 – Z80 SBC/Motherboard
    • SC114 – Z80 SBC/Motherboard
    • SC130 – Z180 SBC/Motherboard

• RC2014+ (BP80, extended 80-pin bus)
  • Backplanes:
    • Modular Backplanes
    • SC105 – Modular Backplane
    • SC106 – Modular Backplane
    • SC107 – Modular Backplane
    • SC109 – Modular Backplane Z50Bus & RC2014+
    • SC112 – Modular Backplane
    • SC113 – Modular Backplane
    • SC116 – 3-slot Backplane
  • Modules: (RC2014 standard profile)
    • SC111 – Z180 CPU Module
    • SC115 – Breakout Module
    • SC119 – Z180 Memory Module
  • Motherboards and SBCs:
    • SC126 – Z180 SBC/Motherboard
  • Complete systems:
    • SC201 – Minimal Z80 System
    • SC202 – Flexible Z80 System
    • SC203 – Modular Z180 System
  • Other:
    • SC146 – Pin Puller Tool

• I2C Bus
  • SC138 – I2C Memory Card
  • SC400 – I2C Bus Modules
    • SC401 – I2C Prototyping Module
    • SC402 – I2C Memory Module (24xxxx)
    • SC403 – I2C 16-bit Digital I/O Module (MCP23018)
    • SC404 – I2C 8-bit Digital I/O Module (MCP23008)
    • SC405 – I2C 8-bit Digital I/O Module (PCF8574)
    • SC406 – I2C Temperature Sensor Module (TC74)
    • SC407 – I2C Switches and Lights Module (PCF8574)

• Tom’s SBC version C

• My Z80 Small Computer (Z80sc)
  • SC120 – Backplane for Z80sc
  • SC121 – Processor for Z80sc
  • SC122 – Serial for Z80sc
  • SC123 – CompactFlash for Z80sc
  • SC124 – Digital I/O for Z80sc