![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiEt1g2McKR6FhD862Q59nI-taE0e9_QyEmDbIutauh4s5MSJukCczS2Uj8tk5ucq_iHG1mExFtcD-NBVc-9sPUZkUcz6W8dzP97d-6pahryB2QlH_OFeGW5Rp3QbNXGCG-WQxTXlhWCtc/s200/led-big.jpg)
This is a blinking LED circuit diagram.Here I have used common IC NE555.If you want to change the speed of this circuit you can change the value of R2.Then you can do that.
Note
* Use a PCB to build this circuit
* You can operate this circuit with 9V
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