MakerGram Logo

    MakerGram

    • Register
    • Login
    • Search
    • Categories
    • Recent
    • Popular
    • Tags
    • Users
    • Groups

    Project help: Arduino Powered Bluetooth Key Finder

    Arduino
    bluetooth arduino
    4
    10
    1562
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • salmanfaris
      salmanfaris last edited by

      Hi @Geethesh, If you are building simple POC (Proof of concept ) or Quick prototype then the HC-05 is enough with the ATtiny.

      • For the ATtiny45 minimum circuit you only need one Pull up resistor for Reset, and one Filter capacitor between VCC and ground and you also need to populate ICSP pins for programming

      • You also need only two external componts HC-05 and Buzzer .
        keyfindner.png

      • In the this project we did't require any external oscillator , the internal 8mhz should be fine .

      Geethesh 1 Reply Last reply Reply Quote 2
      • Geethesh
        Geethesh @salmanfaris last edited by Geethesh

        @salmanfaris thank u for the details and circuit

        1 Reply Last reply Reply Quote 0
        • salmanfaris
          salmanfaris last edited by

          @Geethesh , keep in mind ATtiny series doesn't have Hardware Serial, so you should use the SoftwareSerial for that you also need two more for UART communication (Rx, Tx) between Arduino and Bluetooth.

          1 Reply Last reply Reply Quote 1
          • kowshik1729
            kowshik1729 last edited by

            @Geethesh In case if you live near kalamassery(where Fablab is situated) I strongly suggest to go to Fablab where you can find all the necessary tools and IC's required.

            Geethesh 1 Reply Last reply Reply Quote 1
            • Geethesh
              Geethesh @kowshik1729 last edited by

              @kowshik1729 yes

              1 Reply Last reply Reply Quote 0
              • First post
                Last post

              Recent Posts

              • @codelery Awesome. That's great news. Kudos to @rafitc99 . 🙌

                @codelery Please keep us updated about your project, looking forward to seeing it in action 🤩

                • read more
              • C

                @rafitc99 I changed the buffer and that solved the problem. Thanks a lot for coming to my rescue.

                • read more
              • C

                @salmanfaris I did change the buffer size and everything is working perfectly. Thanks coming to my rescue.

                • read more
              • @codelery said in Help needed: Arduino Wireless Notice Board project:

                I am using the hardware serial (pin 0 and 1 on Arduino Uno)

                As @rafitc99 mentioned, you need to expand the Serila buffer, in the hardware serial also the Arduino board package implements a 64-byte ring buffer for send and receive on the hardware serial messages. So you need to change that to 256 as per your message length.

                • read more
              • C

                @rafitc99 The thing is that I am not using the SoftwareSerial library in receiving the message from the first microcontroller. I am using the hardware serial (pin 0 and 1 on Arduino Uno)

                • read more
              By MakerGram | A XiStart Initiative | Built with ♥ NodeBB
              Copyright © 2023 MakerGram, All rights reserved.
              Privacy Policy | Terms & Conditions | Disclaimer | Code of Conduct