How do I give external power supply to my arduino nano by using phase wire?

Updated on October 5, 2018 in Arduino
2 on February 6, 2017

I am working on a home automation project. Also suggest me how to assemble the boards because there can be heating issues.

 
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0 on February 6, 2017

Also if you can provide me with some circuit diagram for supplying power

 

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0 on October 5, 2018

great and nice

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