EngineersGarage

  • Engineers Garage Main Site
  • Visit our active EE Forums
    • EDABoard.com
    • Electro-Tech-Online
  • Projects & Tutorials
    • Circuits
    • Electronic Projects
    • Tutorials
    • Components
  • Digi-Key Store
    • Cables, Wires
    • Connectors, Interconnect
    • Discrete
    • Electromechanical
    • Embedded Computers
    • Enclosures, Hardware, Office
    • Integrated Circuits (ICs)
    • Isolators
    • LED/Optoelectronics
    • Passive
    • Power, Circuit Protection
    • Programmers
    • RF, Wireless
    • Semiconductors
    • Sensors, Transducers
    • Test Products
    • Tools
  • Advertise
You are here: Home / Topics / Matrix Frequencies

Matrix Frequencies

|

Microcontroller › AVR › Matrix Frequencies

  • This topic has 0 replies, 1 voice, and was last updated 12 years ago by Mridul Agarwal.
Viewing 1 post (of 1 total)
  • Author
    Posts
  • April 27, 2013 at 4:41 am #4816
    Mridul Agarwal
    Participant

    I have got a 4*4 matrix keypad and I have a confusion that it will produce DTMF frequencies or not.

    Can someone help me out in telling that will it produce DTMF frequencies or not?

    For convenience I have attached my keypad’s photo:-

     

    Front View

      

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

    Back View

    Side View

  • Author
    Posts
Viewing 1 post (of 1 total)
  • You must be logged in to reply to this topic.
Log In

RSS Recent Posts

  • Trail camera May 20, 2025
  • how to work on pcbs that are thick May 20, 2025
  • can a AT89C51 be used as a rom? May 20, 2025
  • Telegram Based Alarm - Sensor cable protection May 20, 2025
  • using a RTC in SF basic May 19, 2025

Stay Up To Date

Newsletter Signup
EngineersGarage

Copyright © 2025 WTWH Media LLC. All Rights Reserved. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media
Privacy Policy | Advertising | About Us

Search Engineers Garage

  • Engineers Garage Main Site
  • Visit our active EE Forums
    • EDABoard.com
    • Electro-Tech-Online
  • Projects & Tutorials
    • Circuits
    • Electronic Projects
    • Tutorials
    • Components
  • Digi-Key Store
    • Cables, Wires
    • Connectors, Interconnect
    • Discrete
    • Electromechanical
    • Embedded Computers
    • Enclosures, Hardware, Office
    • Integrated Circuits (ICs)
    • Isolators
    • LED/Optoelectronics
    • Passive
    • Power, Circuit Protection
    • Programmers
    • RF, Wireless
    • Semiconductors
    • Sensors, Transducers
    • Test Products
    • Tools
  • Advertise