Home     Contact     Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science     RSS     Terms of services     Privacy policy  
   
 Home      Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science   


<< Back to INDEX

Membrane Keypad Interface [Project]
posted November 15 2013 12:35.24 by spic0m




Suppose you've built a project, some sort of device that, from time to time, needs to have some data or commands entered into it. The first thing that comes to mind is to connect that device to the serial port of your PC but what if you don't wish to do that for some reason. You could use a keypad. If you only needed to input some numbers it wouldn't be too much of a problem to connect a 3x4 keypad. But if you need to be able to input the whole alphabet then it is more difficult.

This project describes an interface from a 40 keyswitch membrane keypad to a serial line.


[Link: Roger Schaefer]
 
Share



You might also like...


The riddle of the day #14 - The hungry bear

10 facts about black holes [Space]

A Basic Demonstration Of Optical Cloaking [Science]

Groundbreaking Holography Station Technology [Technology]

Arduino + PHP [Project]

18 Things You Should Know About Genetics [Education]

Thinking of questions which have no answer [Mindstorm]

Tidal Clock [Project]


<< Back to INDEX



Comments

  Name

  Email (shall not be published)

  Website

Notify me of new posts via email


Write your comments below:
BEFORE you post a comment:You are welcome to comment for corrections and suggestions on this page. But if you have questions please use the forum instead to post it. Thank you.


      

  • At 1 February 2014, 12:54:55 user Membrane Keypad wrote:   [reply @ Membrane Keypad]
    • Nice information that you have given. I never expected to find such type of blog.I am really appreciate with your logic and it is helpful for others in future.












     Contact     Forum     Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science     RSS   

    Site design: Giorgos Lazaridis
    © Copyright 2008
    Please read the Terms of services and the Privacy policy