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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 yourself
Hello Everyone, I am trying to build a mobile phone charger (For my Samsung phone) by myself using following components. Step down transformer (from 230V to 9V 1200mA) Bridge Rectifier 1000uf capacitor (To smooth the DC voltage) 7805 Regulator (To get output voltage 5V) A micro USB cable I got from a broken charger. Appreciate if you can share your thoughts regarding this. Will this harmful to the phone or will this work better than the low quality Chinese chargers?