Hi, I want to make a project to detect whether there is an electric current or not. The devices I use are acs712, LCD 16 x 2 and nodemcu esp8266. If the current flows then the LCD will be write "LOAD ON", but if the current is off the LCD will be write "LOAD OFF".
How to make the program?
@kotak54, your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with your project 
See About the Installation & Troubleshooting category.
As I have no idea where ou are stuck, the normal steps involve
- Get familiar with programming of the LCD (e.g. print hello world)
- Get familiar with the programming of the acs712 (e.g. display readings on the serial monitor).
- Combine the two.
And a google for e.g. https://www.google.com/search?q=arduino+acs712 might give you some ideas.
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