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Digital Readout Circuits, Page 3
Digital Readouts:  #'s - C     D - L     M - Z

Last Updated on:
Sunday, May 19, 2013 04:47 AM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:
Message Wand -  The message wand is a good PIC introduction as it is a simple project yet illustrates many aspects of the PIC usage. Used at night, the wand is swung around above the head, and to onlookers spells out a short message in the air using flashing LEDs. It could also be used with a handle and spun round like a traditional soccer rattle (can you still get those?) though great care must be taken if you do this.....(circuit added 04/04/04)
Microcontroller displays multiple chart or oscilloscope timing ticks -  1-May-08 Issue of EDN  A crystal controlled microcontroller generates precise timing ticks..... [Design Idea by William Grill, Honeywell, Lenexa, KS]
Microcontroller drives LCD with just one wire -  3-Dec-07 Issue of EDN  A Microchip PIC10F family microcontroller sparks an HD44780 LCD using a single I/O pin..... [Design Idea by Noureddine Benabadji, University of Sciences and Technology, Oran, Algeria]
Microcontroller moving-dot display interface uses three I/O lines -  1-May-08 Issue of EDN  A moving-dot LED-display interface to a microcontroller uses only three output pins..... [Design Idea by Abel Raynus, Armatron International, Malden, MA]

Monitor alarm and indicator display multiple deviation boundaries -  22-April-10 Issue of EDN-Design Ideas.....Use a microcontroller and its ADCs to indicate process errors. [Design Idea by William Grill, Riverhead Systems, Lenexa, KS]
Novel Process for Vacuum Fluorescent   VF Display Drivers -  National Semiconductor Application Note  (app note added 2/06)
PIC 5x7 Display -  (electronic circuit added 7/03)
PIC Vacuum Fluorescent Display Interface -  (electronic circuit added 4/05)
Picxie 2 8x8 Animated LED Signboard -  The firmware supplied in  current sourcecode archive is VERY BASIC. I do intend to draw more patterns. However, a vast workload coupled with possible emigration has put  finished firmware on hold. Please do go ahead and build this circuit though  supplied firmware is fully functional. You can have hours of fun designing your own patterns and effects!  Uses  PIC16F84 (electronic circuit added 7/03) 
POST repeater reads out remotely -  12/08/94 EDN-Design Ideas..... EDN is migrating links. This link is not verified.  Search the "title" + "EDN" for new link.
Radiated Emissions & CRT Displays -  National Semiconductor Application Note  (app note added 2/06)
Read isolated digital signals without power drain -  25-Nov-04 Issue of EDN  Although optocouplers offer designers a straightforward method of establishing galvanic isolation between circuits that operate at different ground potentials, they do not provide an ideal approach. An optocoupler draws power from the isolated circuit, switches relatively slowly, and loses current-transfer ratio as its light emitter ages..... [Design Idea by Alfredo H Saab and Joseph Neubauer, Maxim Integrated Products Inc, Sunnyvale, CA]
Read multiple switches and a potentiometer setting with one microcontroller input pin -  04/22/10 Issue of EDN  Use a single ADC input pin to sense pushbuttons as well as a potentiometer.… [Design Idea by Kevin Fodor, Palatine, IL]
Reconstruction Filter Selection for HDTV & VGA/Application/ ABR-42015 -  Fairchild Application Notes / (app note added 6/06)
RSDS™ Flat Panel Display Design Guidelines Part 2 -  National Semiconductor Application Note  (app note added 2/06)
SPI Interface Big 7-Seg LED -  Easy build and use, the general purpose Big LED with SPI serial interfacing. Expandable for multiple digits but still uses only three wires for receiving data from any uC boards… [Wichit Sirichote, kswichit@kmitl.ac.th]
Simple LCD Interface Takes Two Wires -  03/26/98 EDN-Design Ideas.....Alphanumeric LCD modules can provide an attractive display for a project, but their parallel I/O lines require a large number of outputs from a �C. For example, a direct LCD interface would consume all of the I/O pins..... [Design Idea by Ed Maste, Jem Designs, Pickering, ON, Canada]
Song #Display -  .....
Speller Effect Sign Display -  .....
Switch Configures Bare Bones Two Digit Display -  12/21/95 EDN-Design Ideas..... EDN is migrating links. This link is not verified.  Search the "title" EDN for new link.
Teletext Devices -  .....
The Cheap But Useful Ericsson Cell Phone Display GA628  -  You used to have an Ericsson Cell Phone GA628 and you also loved it very much, however after few years of using, you’ve decided to change a brand new cell phone and you just threw it inside the drawer and never touch or look on it after that?….(added 04/06)
Theory & Application of the ML4874 & ML4876 LCD Backlight Controller ICs/ AN-42010 -  Fairchild Application Notes / (app note added 6/06)
Ultralow-cost, two-digit counter features few components -  17-Aug-06 Issue of EDN  Two seven-segment displays and one microprocessor count from zero to 99 Issue of EDN… [Design Idea by Noureddine Benabadji, University of Sciences and Technology, Oran, Algeria]
Wide Band Fuel Mixture Display -  This document is an introduction to the Wideband Fuel Mixture Display (FMD)…..(Circuit design added 8/03)


 

Digital Readouts:  #'s - C     D - L     M - Z
 



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