Help me build this circuit with Arduino Uno R3!

Discussion in 'The Projects Forum' started by cvsdqw123, Feb 12, 2017.

  1. cvsdqw123

    Thread Starter New Member

    Feb 12, 2017
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    0
    I have an arduino uno r3 that runs on 5 volts. I'm trying to build something similar to this circuit but I'm having a hard time figuring out what type of resistors, transistors, mechanical relay, and diode to get. The whole point of this circuit is to create a small repetitive pulse. I can't conclude what type of materials to get. Can someone please help me! I really appreciate it.
     
  2. AlbertHall

    AAC Fanatic!

    Jun 4, 2014
    7,780
    1,914
    You don't need a uno to do this. You need something simple like this and in fact for this circuit I don't think you even need the relay. The output of the '555 used direct should do the job.
     
    cvsdqw123 likes this.
  3. cvsdqw123

    Thread Starter New Member

    Feb 12, 2017
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    0
    Thanks but I already have an arduino board :( so it would be quite a waste of money.
     
  4. LesJones

    Well-Known Member

    Jan 8, 2017
    2,134
    636
    If you watch the video you will see that it gives you the code to load into the Arduino. It is just a variation on the LED blink code that is used in one of the first Arduino tutorials. You will have to pause the video to copy down the code.

    Les.
     
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