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Recent content by aroymkp

  1. A

    DTMF Communication over 24 Volt DC Line

    dtmf is generated using uC - is it sufficient or it should be amplified?
  2. A

    DTMF Communication over 24 Volt DC Line

    do i need to put an op amp for receiving end?
  3. A

    PIC microcontroller RS232 communication help

    pic rs232 communication try using max232
  4. A

    GSM/GPRS Modem not Dialing Out

    gsm 11 last dialed number i understand that colon is for datamode and not voice mode
  5. A

    DTMF Communication over 24 Volt DC Line

    Can you give any idea about the value of inductor to be used.
  6. A

    GSM/GPRS Modem not Dialing Out

    gsm no carrier if no is 12345678 use the command atdt12345678; this will dialout
  7. A

    DTMF Communication over 24 Volt DC Line

    opam dtmf Thanks a lot for your advice. Can you please put up a small schematic ? Can you please guide what specific inductor value should be used for DTMF frequencies from 0-9 . I will be much grateful for your kind guidance
  8. A

    DTMF Communication over 24 Volt DC Line

    what are uses of dtmf communication I need to send and receive DTMF signals over a 24 Volt DC Line. Can anybody suggest how DTMF can be modulated over DC Line. I plan to decode it using MT8870 decoder. Any help/ guideline will be highly appreciated.
  9. A

    water tank level sensor (problem)

    You could try using a wire sensor with pulsing detections
  10. A

    printers to microcontroller

    Can anybody provide source code for printing serial output to printer
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