Content for PS2

PS2

The PS/2 port is a 6-pin mini-DIN connector used for connecting keyboards and mice to a PC compatible computer system. Its name comes from the IBM Personal System/2 series of personal computers, with which it was introduced in 1987. The PS/2 mouse connector generally replaced the older DE-9 RS-232 "serial mouse" connector, while the PS/2 keyboard connector replaced the larger 5-pin/180° DIN connector used in the IBM PC/AT design. The PS/2 keyboard port is electrically and logically identical to the IBM AT keyboard port, differing only in the type of electrical connector used. The PS/2 platform introduced a second port with the same design as the keyboard port for use to connect a mouse; thus the PS/2-style keyboard and mouse interfaces are electrically similar and employ the same communication protocol. However, unlike the otherwise similar Apple Desktop Bus connector used by Apple, a given system's keyboard and mouse port may not be interchangeable since the two devices use different sets of commands and the device drivers generally are hard-coded to communicate with each device at the address of the port that is conventionally assigned to that device. (That is, keyboard drivers are written to use the first port, and mouse drivers are written to use the second port.

A Arduino RP2040 Standalone IoT Computer Running BASIC

“This instructable is about building standalone computers running a BASIC dialect suitable for IoT and interactive work. It uses low cost components that are readily available and can be integrated without much difficulty. So why running BASIC on a microcontroller …

Project  Cipherbox

Cipherbox

“With the development of cryptanalysis and new hacking techniques, the cost of accessing your data without your authorization continues to decline, making it easier and more attractive for different sides to get it. I’m not going to get into …

Project  PicoMemcard

PicoMemcard

“PicoMemcard allows you to build your own supercharged PSX Memory Card that can be connected to your computer via USB in order to transfer saves directly to/from your PSX. You can use it to repurpose broken/counterfeit Memory Cards …

The Black Swan Project

“The Black Swan Project is an ESP8266-based, secure, one-way communication channel. It might be superfluous in the current conditions. But let’s suppose that a black swan event occured, causing the nationwide blackout, complete failure of the mobile network …

Project Midbar

“Midbar (מדבר) is a Hebrew word that means “pasture,” “uninhabited land,” “wilderness,” “large tracts of wilderness (around cities),” “desert.” There are two reasons why I chose the word Midbar as the name of this project. First - while working on my previous …

Build a 80s Style Home Computer From Scratch From Arduino Components

“This project began in a rainy summer 2021 in Corona lockdown when I started to write a BASIC interpreter for Arduino from scratch. The project was simple and mainly targeted for Arduino UNO and other small systems but has now …

Arduino MIDI Mouse Controller

“Turn an old “roller ball” mouse into a MIDI controller that can unlock new ways of making digital music. Reimagining MIDI devices based on old electronics I hate throwing away old electronics that still work but are no longer supported …

DIY Keyboard Controller for MAME and Virtual Pinball

“This set of instructions allows you to fabricate your own keyboard controller using old keyboards for the cost of some wire, solder and a piece of wood. These controllers have been used in my MAME and Virtual Pinball projects. See …

Reuse Old Laptop’s Touchpad to Control a Stepper Motor

“I made this project a few months ago. A few days back, I posted a video of the project on r/Arduino on Reddit. Seeing people getting interested in the project, I decided to make this Instructable where I have …

Z20X Open-Source Computing System

“Z20X is a simple expandable DIY computing system, built around the eZ80 microprocessor. I chose eZ80 due to its native simplicity and full backward code compatibility with the great and very popular Z80 and Z180. The design goal of Z20X …