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If want to connect a LED to the output, need to place a resistor in series with the LED.
Value of the resistor from 330 to 1K (depending on the supply voltage and brightness you want).
Thank you for prompt and comprehensive explanation! I am very appreciated.
Can I buy it from somewhere already assembled to save time? What is the the name of this thing?
Thanks.
If want to connect a LED to the output, need to place a resistor in series with the LED.
Value of the resistor from 330 to 1K (depending on the supply voltage and brightness you want).
Good morning everybody!
I am newbie and just started learning about electronics and soldering.
I would be greatly appreciated if some one knowledgeable can help me identify electronic part I need for my project.
It supposed to be a 15Hz pulse or frequency generator (I am not sure). It has blue LED that reflects frequency pulsation rhythm.
This part is tiny and powered by 9V battery.
I have attached picture of this part for your reference.
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