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About LongTechnical » In this video i had show you Portable Voltmeter Ammeter Wattmeter with Rechargeable Battery Insite All of thing we need in there. Please check on description and do step by step you will get Portable Voltmeter Ammeter Wattmeter The firts we need to make PCB. I use eagle software for design shematic and PCB. After that i order the PCB by upload gerber file to JLCPCB.COM and after 2 day i reieved 10PCB high quality with only 2$. You can try like my by upload gerber file to JLCPCB.COM for get PCB online. Or you can make PCB by yourselft by download the PDF file at end of topic. look at some picture from my project, and check more video at my youtube channel https://www.youtube.com/channel/UC0dW_Q1nhPqbUQZvbeogOnQ/videos LCD metter.pdf LCD metter2.pdf