Posts in 2023
  • LPT printer emulator

    Wednesday, April 26, 2023 in Retrocomputing

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    Warning: While this project does work and has been tested against a number of devices, the firmware is very quick & dirty with hardcoded parameters and missing error handling. Use in production environments is discouraged. What is it? Old …

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  • PC104 ISA adapter

    Sunday, February 19, 2023 in Retrocomputing

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    What is it? These mechanical adapter PCBs allow the use of PC104 and Vortex86DX X-ISA single board computers on an ISA backplane. Such adapters are available commercially for industrial use at extreme prices (100$+), for simple passive adapters. …

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Posts in 2022
  • IrDA to RS232

    Tuesday, March 22, 2022 in Retrocomputing

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    What is it? A small PCB, which can receive RS232 over IrDA/IrCOMM (for example from Palm PDAs, Nokia phones, old laptops) and relay it to a RS232 device. Modded ISDN terminal adapter This ELSA MicroLink ISDN terminal adapter was modified to include …

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Posts in 2020
  • ISA8019 NIC

    Thursday, November 12, 2020 in Retrocomputing

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    What is it? ISA NE2000-compatible network card Using RTL8019 chipset, 10Base-T full duplex ethernet Can be configured via jumpers, EEPROM or full ISA PnP. Compatible with 8-bit XT machines. Optimized for automated assembly at JLC. Plug & Play …

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  • ISA-over-USB

    Wednesday, October 14, 2020 in Retrocomputing

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    What is it? This project allows the use of ISA extension cards on a modern computer over a USB interface. The main project goal was to learn about the ISA bus, not to build a polished product. USB limitations USB has inherent limits to the minimum …

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  • CMM2 PCB

    Wednesday, July 29, 2020 in Retrocomputing

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    What is it? The Colour Maximite 2 is a hobbyist computer, mimicking the home computers of the 80s, running BASIC. Because the original PCB (and seperate STM32 devboard) were expensive and hard to obtain, we designed this machine-assembly ready PCB. …

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