How to make DTMF Decoder using 8870 IC | SdevElectronics

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  • Опубліковано 11 гру 2024

КОМЕНТАРІ • 28

  • @TOKAR5774
    @TOKAR5774 3 роки тому +1

    👆👍👍Super👍👍👆

  • @ivanjimenez1686
    @ivanjimenez1686 2 роки тому

    works rightly with cm8870pi?

  • @sidharthjain5841
    @sidharthjain5841 4 роки тому +1

    Can i use a 3.992mhz crystal??

  • @lawalmohammed83
    @lawalmohammed83 4 роки тому +1

    Please do you need to do programming?

  • @pulikkottilabypaul3194
    @pulikkottilabypaul3194 5 років тому +1

    Can i use MT8870 instead of CM8870.in some videos i have seen two 22pf capacitors near the crystal. Is it necessary?

    • @SDevElectronics
      @SDevElectronics  5 років тому

      Yes you can use it.
      Not necessary, if not working use it..
      It depends upon IC manufacturer

  • @Seu_Lunga
    @Seu_Lunga 5 років тому +2

    Can this be used on landlines?

    • @SDevElectronics
      @SDevElectronics  5 років тому

      Sorry, I'm not tried yet...
      If you found 3.5mm female Jack on landlines, try it, reply me if it is working...

    • @flyoversirens3704
      @flyoversirens3704 5 років тому

      I know the "ring" voltage is much higher than the maximum supply voltage, so you may need something to prevent the initial voltage spike.

  • @VaishnaviKarbhari
    @VaishnaviKarbhari 5 років тому +1

    My audio jack does not connect to the mobile...i have used that audio jack previously for other projects...can you help please

    • @SDevElectronics
      @SDevElectronics  5 років тому +1

      Use another audio jack, 3.5 mm stereo male jack, left or right signal

    • @VaishnaviKarbhari
      @VaishnaviKarbhari 5 років тому

      @@SDevElectronics i ran out of time and had to change my project topic...but i will give it a try in the next semester ...thank you🤗

  • @vishalpathak050
    @vishalpathak050 4 роки тому +1

    Can i use 9 volt EW CELL inspite of 5 volt??

  • @pulikkottilabypaul3194
    @pulikkottilabypaul3194 5 років тому +1

    How to convert the audio jack to the mobile connector. I know that the one pin is ground. What about the left and right audio pins.

    • @SDevElectronics
      @SDevElectronics  5 років тому +1

      Search in Google "3.5mm Headset jack pinouts"...

  • @x-6790
    @x-6790 4 роки тому +1

    I want to buy blue mat.from where you buy

  • @pulikkottilabypaul3194
    @pulikkottilabypaul3194 5 років тому +1

    What is the wattage of resistors

  • @ramakrishna3662
    @ramakrishna3662 5 років тому +1

    Hi bro I want the circuit diagram and how to connect breadboard connection place send bro

  • @achyuthagna5078
    @achyuthagna5078 4 роки тому +1

    it doesn't work with smartphones
    it only works when connected to basic mobile sets

  • @yogeshphand8673
    @yogeshphand8673 5 років тому +1

    Diagram show