PC hardware projects page
Index
- 24 Line Parallel Interface for the PC - big file in pdf format, you might only need the schematic
- 8254 timer/counter board - The schematic, theory of operation, construction tips and parts lists
- ADDA10 - build and use a simple low cost analog I/O extension board for PC's, includes 500 KHz analog-to-digital converter (ADC) and a 1 MHz digital-to-analog converter (DAC), zipped file which contains circuits and source code
- A Home Built (almost) Panasonic/MKE/CR56x CD-ROM Interface
- DAC schematics for PC slot - 8 bit DAC circuit, documentation in russian
- Decoder safely drives data-bus buffer - a common way of implementing an I/O decoder for the ISA (or similar) bus
- Filtering PC bus POWER
- General purpose 48-bit ISA parallel I/O card
- ISA-24-IO- 8bit ISA bus XT-card with 24 I/O lines, based on 8255A, check also relay board for it
- ISA bus provides access to serial peripherals - you can easily connect peripherals with serial interface to the ISA bus through an I/O port that latches control and data bits
- ISA output card - simple 8 bit output card
- learn-c.com: Controlling The Real World With Computers - real-world equipment controlling using PC and C from basics to actually providing output to and getting input from the board, includes I/O card circuit plans
- POST repeater reads out remotely - power-on self-test card with remote display
- PAL powers universal ISA bus interface
- PCAT Interface Card - 327k pdf file, circuit design by Joel T. Retanan
- PC I/O decoder circuit - as used in lot of older PC I/O cards
- PC Soundcard - 16 bit soundcard
- PCXT Interface Card - 263k pdf file, circuit design by Joel T. Retanan
Documents
A/D and D/A conversion
Controlling applications
- 4 - switch control from PC parallel port - controls 4 relays from PC parallel port
- Computer Interface - controls relays from PC parallel port, includes some BASIC example source code
- Electrical Equipment Control Using PC - idea for using the printer port of a PC, for control application using software and some interface hardware, example circuit is optoisolated relay driver circuit
- Elektronikprojekt: Printbohrplotter - Printbohrplotter, Stepperdrivercard schematic and board, the plotter is controlled by the parallel port interface through software written in C++, text in German
- Kello / ohjelmatietojennäyttäjä - four number 7segment display which connects to PC parallel port, documentation in Finnish
- LPT-16-0- 16bit Output Interface for the Parallel Port, check also 10 relay board for it
- LPTCMD (parallel simple interface) - easy interface connected to the printer port which allows managing of 7 relays and 4 input lines and does not use any microcontroller, Pascal, Basic, C interfacing routines are provided, from Pier's Homepage
- Parallel Port Relay Interface example of controlling a relay from the PC's parallel printer port
- Parallel Port Servo Controller - gives you 256 different positions over the full range of the servo
- PC-Based 7-Segment Rolling Display - simple hardware circuit and software is used to interface a 7-segment based rolling display to PC printer port
- PC Printer Port Relay Board - Communicate with the real world via the parallel printer port on your PC. Simply connect printer cable from computer to Centronics connector on relay board. There are 8 relays each capable of switching 12VDC/120VAC @ 10A. Each relay has an LED to indicate when it is operated
- Relekortti - PC parallel port relay card, text in Finnish
- Stepper motor controlling using PC parallel port - and links to stepper motor documents
Interfacing to computer hardware through parallel port
I2C
Logic analyzers using parallel port
Misc
ADC and DAC circuits
Serial line monitoring
Serial to parallel conversion
Keypads to serial port
Other
This section lists MP3 players, both PC based and non-PC projects.
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