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RetroWiFiModem
An ESP8266 based RS232 <-> WiFi modem with Hayes AT style commands and LED indicatorsPicoWiFiModem
A Pico W based RS232 <-> WiFi modem with Hayes AT style commands and LED indicatorsLadder
The classic CP/M game Ladder reverse engineered in Turbo Pascalzmp
ZMP1.5 (A Zmodem terminal program for CP/M) updated to compile with v3.09 of Hi Tech CTeensyBoardZ80
A Teensy 4.0 emulated Z80 ZCPR3.3/ZSDOS computer.zde
Reconstituted source code for ZDE 1.6 (Z-System Display Editor)Talker
A code-to-speech board based on the General Instrument 1980s chip setSerialBackup
Incremental backups for CP/M over the serial portAM9511
Interfacing an AM9511 arithmetic processor to a Z80 system, including a replacement Mathlib module for Turbo Modula 2.Elf-Elfos-cal
A Linux-style calendar utility for Elf/OSampro_lb_z80
A collection of AMPRO Little Board Z80 utilitiesCTS256-exceptions
An exception-word EPROM generator for the CTS25AL2 text-to-speech IC.Mec_Parts
An open source database program for Meccano partsElf-Elfos-pix
A proof of concept Elf/OS 1861 Pixie image display utility1854_UART_tester
An Arduino based test jig for a CDP1854 UARTElf-Elfos-adventureland-plus
An Elf/OS port of Richard Goedeken's 1802 version of Adventureland+Elf-Elfos-hex2bin
An Intel Hex to binary file converter for Elf/OSLove Open Source and this site? Check out how you can help us