Electronic Circuits and electronic circuits, electronic schematics plus an extensive resource for hobbyists, inventors and engineers

DiscoverCircuits.com, has 45,000+ electronic circuits, cross-referenced
into 500+ categories.    We have searched the web to help you find quick design ideas.
We make every effort to link to original material posted by the designer. 
Please let us if you would like us to link to or post your design.

HOME Schematics Index Hobby Corner Dave's Circuits Electronic Resources Contact Info
Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches



Computer Interface Circuits

Computer Interface: 
#'s         A -  B        C - E
        F - H        I -  L         M -  P        R  - T       U -  Z



Last Updated: November 30, 2017 01:57 PM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Schematic & Board Layout Recommendations for Pi7c7300 -  App Note # 057. . .  [Pericom Semiconductor]

 

Schematic & Layout Guidelines for PI7AT04 -  App Note # 057. . .  [Pericom Semiconductor]

 

Scheme autodetects baud rate -  07/20/00 EDN Design Idea   The popularity and easy access of RS-232 ports lend them to many communication projects. You can use a port "as is" or as a tiny parallel port when the exchange uses only control lines. Before the asynchronous serial-data transfer between two devices can take place, you must ensure that both devices are configured to the same data format and transmission rate. Usually, the OS utility or application program on the host computer performs this task, which the OS or a combination of switches selects in the peripheral. . . .  [by Alexander Eisen, State University of New York, Buffalo, New York]

 Scheme implements multiple output ports -  02/16/98 EDN Design Idea   In µP/µC systems, you sometimes need to use many output ports and update all the ports simultaneously. For instance, in systems that use multiplexing techniques, the output ports require refreshing for every scanning period. One . . .  [by W Kurdthongmee, Nakorn Si Thammarat, Thailand]

 

Scheme Improves On Low-Cost Keyboard -  10/30/03  EDN Design Idea   You can easily improve on a previous Design Idea   to produce a slightly simpler resistor arrangement with better timing balance between switches, using a single resistor value (Reference 1, Figure 1]. The use of a single resistor val. . .  [by Martin O'Hara, Telematica Systems Ltd, Cranfield, Bedfordshire, UK]

 

SD Card Interface -  SD memory cards, especially the ones under 1GB are cheap, relatively easy to interface and provide vast amounts of memory for imbedded control. . . .  [by Luhan Monat-Mesa Arizona]

 

SD Card Reader -  This is an educational site of PIC Projects in various stages of development along with pictures, source files, object code files, schematics, and board layouts. You are welcome to use what you like at your own risk. . . .  [Luhan Monat - Mesa Arizona ]

SD/SDHC Card Interfacing with ATmega8 /32 (FAT32 implementation) -  Hi friends, Here is my project on interfacing of SD Card (microSD). microSD cards are available very cheap nowadays, a great option for having a huge memory in any embedded system project. It is compatible with SPI bus, so the interfacing is easy. . . . 

 

Sega 3D Glass Interfacing Circuits -  . . . 

 

Selection of MOSFETs in Switch Mode DC-DC Converters/ AB-8 -  Fairchild App Note. . . 

 

Self-modifying code extends addressing mode -  12/17/98 EDN Design Idea   (File contains many circuits. Scroll to find this one.)   As just about any assembly-language programmer knows, self-modifying code (SMC) is usually undesirable, unintentional, and destructive. However, the SMC routine in Listing 1 is extremely useful to extend the indexed, 16-bit offset addressing mode of the venerable HC05 µC from 8 bits, or 256 locations, to the full 13-bit (8-kbyte) memory address space that the µC’s architecture supports. . . .  [by Paul Sofianos, Motorola Inc, Tempe, AZ]

 

Self-Powered Soundcard -  . . . 

 

Serial Controller IC Interfaces with ADSP2100A -  03/28/96 EDN Design Idea   The ADSP2100A DSP chip from Analog Devices has no serial port. To interface the device with a PC through the RS-232C port or to another serial line, you need to add a serial communications port to the DSP card. You can add this p. . .  [by DVL Prasad and CA Jalaludeen, NPOL, Kochi, India]

 

Serial Data Multiplexer -  Embedded computers and PDAs and have become popular as "brains" for robotics projects. They usually have an RS-232 serial port that interfaces easily to a slave IO controller. Unfortunately a single serial port can be a severe limitation if a user wishes to connect multiple serial devices. This page describes one method to switch serial signals between a host device, such as a PDA or PC, and a slave IO controller or one other auxillary device with a serial interface. . .  [Acroname Inc.]

 

Serial Infrared Remote Controller -  a simple, cheap device that can be connected to any serial port to control most components that have infrared remote controls, includes schematics for receiver and transmitter  . . .  [John DuBois designer]

 

Serial Interface & Bias Supply for Seiko-Epson G1206b Dot Graphics Display -  Serial LCD/VFD Controller is a HD44870 based LCD/VFD controller via RS-232. The control command is compatible with Matrix-Orbital's LCD module. So, you can use any MO friendly software to control this baby such as LCDC. . . .  [From Dick Cappels' project pages]

 

Serial interface adapter for iPod Linux -  . . . 

 

Serial LCD for MicroControllers Using Only 3 Pins -  Connect an LCD to your microcontroller to make it easy to develop and debug your application. You can choose which PIC I/O pins you want to use for the interface, and any HD44780 compatible LCD can be controlled. . . .  [designed by Peter Jakab]

 

Serial Port A/D Converter -  This circuit is a simple 8-bit analogue to digital converter circuit which is connects to PC serial port. The circuit is based on TLC548 A/D-converter chip (might be hard to get nowadays, Texas Instruments makes this IC) , which is an A/D-converter with serial output. The output of the TLC548 is not directly suitable for standard serial data reception, so this circuit . . . 

 

Serial Port Controller Infrared Transmitter PIC16f628 -  . . .  [Peter Jakab, Electrical Engineer, Engineer of Informatics]

 

Serial Port Drives 12 Bit ADC -  10/12/95 EDN Design Idea   The circuit in Fig 1 performs a task that a microcontroller usually performs, that of driving a 12-bit ADC from the serial port of a PC. Power consumption is low; the 2-mA operating current drops to only 15 µA in shutdown. . . .  [by John Wettroth, Maxim Integrated Products, Sunnyvale, CA]

 

Serial Port I/O Expander -  This article shows how to use the PIC16F84 microcontroller with PicBasic to design a quick & effective, serially controlled, I/O-Expander. Using PicBasic makes developing handy single-chip devices like this extremely simple. . .  [Copyright Reynolds Electronics]

 

Serial Port I/O Interface -  This is a simple I/O interface using an AVR microcontroller. The i/o pins are controlled by the AVR and can be used to drive LEDs, control RC servos, etc. Using the attached relay circuit it can also be used to control relays. This schematics also provides a programming interface. . . . 

 

Serial Port Professional PIC Programmer -  Serial Port Professional PIC Programmer. Here is the list of currently supported flash devices from Microchip PICmicro 12F and 16F product lines: 12F629. . . 

 

Serial Port Professional PIC Programmer  -  The PIC programmer project presented here is intended to be used by more experienced developers who already have access to a simple PIC programmer, because the programmer hardware is built around one 16F627 (A) or 16F628 (A) microcontroller that has to be preprogrammed with firmware. The presented solution uses PC's serial port for reliable communication between the programming software and 'intelligent' PIC programmer hardware. . . . 

 

Serial Port Routines Without using the RTCC -  Application Note Published 26-Aug-97. . .  [Microchip]

 

Serial Port Utilities Implementing Table Read & Table Write -  Application Note Published 26-Aug-97. . .  [Microchip]

 

Serial servo controller for interfacing hobby servos via RS232 to a PC -  . . . 

 

Serial to parallel converter-connect a large number of digital outputs to a PC parallel port -  . . . 

 

Serial-Controlled Postage Stamp Computer Governs Process -  10/13/94 EDN Design Idea iemens has extended its microcontroller-development tool support with the “Big Box” programme—bundled offerings that provide tool chains from a number of third-party suppliers. The tool set targets a number of “typical” application areas. The company integrates the tools through a standard interface and includes training and support from the tools’ manufacturers. Part of Siemens’ “Space” programme, the Big Box covers 8-, 16-, and 32-bit microcontrollers. . . .  [by Steven C Hageman, Calex Manufacturing Co Inc, Concord, CA]

 

Serial-interface infrared remote control -  This is a simple, cheap device that can be connected to any serial port to control most components that have infrared remote controls. I designed and built it (on a solderless breadboard) in 1991. In 1992 I wrote a lengthy description of it for an electronics class. In 1994 I finally designed a PC board for it, using a free, X-based PC board design program called pcb, and in 1995 I etched several of the boards and made the final product. . .  [John DuBois designer]

 

Series Resistors, Body Capacitance Scan 16 Buttons With Two MCU Pins -  In an application using a pin-limited microcontroller (MCU) , I needed to scan an array of 16 buttons. The technique I used involved a series string of resistors of identical value connected between two bidirectional pins of the. . .  [Dave Vanden Bout-Circuit Designer]

 

Shared-Memory Interface Eliminates Arbitration -  08/01/96 EDN Design Idea   The design of a shared-memory interface for the ISA bus commonly requires a relatively complex arbiter, which grants access to an onboard device or to the ISA bus. If an on-board device requires only infrequent accesses, the circuit in Figure 1 can eliminate the need for the arbiter. Local access occurs during the execution of an ISA refresh cycle, thereby eliminating any risk of contention. The RFRSH line signals the beginning of the refresh cycle; as long as this signal is active, the local device has full control of the memory. . . .  [by Piotr Mazur, Wikom, Warsaw, Poland]

 

      <<<< Previous   PAGE   Next>>>>


Computer Interface:  #'s         A -  B        C -  E
        F -  H        I -  L         M -  P        R  - T       U  - Z


HOME Schematics Index Hobby Corner Dave's Circuits Electronic Resources Contact Info
Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches


 About Us   |  Advertise on DiscoverCircuits.com   |   Report Broken Links  |    Link to DiscoverCircuits.com  |    Privacy Policy


Copyright  January, 1998 - November, 2017     David A. Johnson & Associates.  All Rights reserved. 


 Linking is ALLOWED but COPYING any content or graphics to your web site is EXPRESSLY PROHIBITED.