HC-05 Bluetooth


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Thread: HC-05 Bluetooth

  1. #1
    Join Date
    Mar 2025
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    1

    Default HC-05 Bluetooth

    I'm trying to interface an HC-05 Bluetooth module with my microcontroller using PicBasic, but it doesn’t seem to respond to AT commands. I’ve double-checked the baud rate and wiring. Has anyone encountered this issue before?

  2. #2
    Join Date
    May 2013
    Location
    australia
    Posts
    2,631

    Default Re: HC-05 Bluetooth

    Has anyone encountered this issue before?
    happens frequently.
    usual causes :-
    the code you did not post is no good.
    the device is wired incorrectly. ie not as per the schematic you did not post
    the power supply is inadequate.
    the device has been damaged by poor handling.
    Warning I'm not a teacher

  3. #3

    Default Re: HC-05 Bluetooth

    a little elementary and you may already know....... are you using the 'escape sequences?' and, with a usb to serial thingy, you can address the 05 from the serial side

  4. #4
    Join Date
    Jan 2009
    Location
    Miami, Florida USA
    Posts
    699

    Default Re: HC-05 Bluetooth

    I found out the hard way that not all HC-05 modules work the same. Use the version AT command and look for modules with the latest firmware versions. Try to establish a serial communication first with a serial communication app.
    "No one is completely worthless. They can always serve as a bad example."

    Anonymous

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