Altair 8800 emulator in your browser: a working front panel, an Intel 8080, an ASR-33 Teletype and Microsoft's original 4K BASIC
A Modern Voice Synthesizer for the TRS-80 Model 1, Model III, and Model 4!
ZX Spectrum bitmap font tools.
An Extension Board for the Amstrad CPC based on the Blue Pill Microcontroller
An Emulator of the Busch 2090 Microtronic Computer System for Arduino Uno and Arduino Mega 2560
A Speech Synthesizer, SID Soundcard, MIDI IN SID+AY Synthesizer for the Amstrad CPC
An SRAM Emulator and SD Card Interface for Vintage Single Board Computers
A Universal Floppy Disk Drive Adapter for the Amstrad / Schneider CPC 464
🕹️ Old computers, modern APIs. How far back in computing history can we go calling @openapi®?
LambdaSpeak 3 is a Speech Synthesizer, Sample Player, UART Serial Interface, and Real Time Clock for the Amstrad / Schneider CPC Home Computer
The original After Dark screen savers, running on today's Windows
Perfect Paul ][ - a DECtalk speech synthesizer card for the Apple II, built on a Raspberry Pi Pico. Speaks, sings, and runs a talking ELIZA.
LambdaSpeak - A Next-Generation Speech Synthesizer for the Amstrad (Schneider) CPC, Sinclair ZX Spectrum, and Multitech Microprofessor
A MIDI Sound & Interface Card for the TRS-80 Model 1, III, and 4
A Simple Expansion Port Connector for the Amstrad / Schneider CPC
A Raspberry Pi Pico (RP2040)-based 6116 SRAM Emulator & SD Card Interface for the Microprofessor
An Expansion Connector Extender & Backplane for the Amstrad / Schneider CPC
The Ultimate Backplane for the Amstrad CPC
The Microtronic Phoenix Computer System - A Microtronic Emulator Running the Original Firmware from 1981
A 512 KB Paged Memory Expansion for the TRS-80 Model I & III
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