Please help to identify. Thanks.

[Michael2019]

Alternatively, you can buy a cheap micro-controller board, write a simple program to generate the 15Hz output.

Such as this one:

[ATTACH=CONFIG]146014[/ATTACH]

I will try to search at the Sim Lim Tower tomorrow.
Thank you very much nb8686!

[nb8686]

Lazada is selling the 555 pulse generator module.

[nb8686]

Alternatively, you can buy a cheap micro-controller board, write a simple program to generate the 15Hz output.

Such as this one:

[nb8686]

You can try Sim Lim Tower.

[Michael2019]

Basic Circuit:

[ATTACH=CONFIG]146010[/ATTACH]


Components:

1. Timer IC 555 (TL555 or NE555)
2. Resistor 22K (R1)
3. Resistor 470K (R2)
4. Capacitor 0.01uF
5. Capacitor 0.1uF (C1)


This should give you a frequency of 15Hz.

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.

[nb8686]

Basic Circuit:




Components:

1. Timer IC 555 (TL555 or NE555)
2. Resistor 22K (R1)
3. Resistor 470K (R2)
4. Capacitor 0.01uF
5. Capacitor 0.1uF (C1)


This should give you a frequency of 15Hz.

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).

[Michael2019]

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.