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Ekhtiak Efat
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 · PabnaBangladesh
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Home Load Control and Surveillance via Internet By Mobile

I want to make a home load control system which can be controlled using internet and a mobile app. Arduino will check all the loads’ voltage and currents and will store that data time to time in a web database, and the mobile app will check it time to time. whenever there is any low voltage/ high current issue, the app will show it istantly and suggest me to stop that load. and if the user stops it or not responding it the mobile will send stop that load signal in the web, and arduino will execute that.

How can i do it? any help Ranjan Dailata Robert Lancer Abhi Verma
how much it can cost?

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Ranjan Dailata
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Application Architect/Lead Developer
 · ChicagoU.S.
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I’m not an expert on hardware design and stuffs. May be Abhi Verma and Ravi Pujar can help out.

Please take a look into this article - http://circuits4you.com/2016/05/13/arduino-ac-voltage/

Once you decide the high vs low voltage limits, you may use GSM Modems/Bluetooth/Wifi to send information to be persisted. Hope it helps.

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Abhi Verma
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ROBOToTHON 2017 Mentor, Electronics Engineer
 · DelhiIndia
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voltage and current sensing isn’t a big deal. you can use bridge rectifier and voltage divider ckt to get TTL level voltage which can be directly fed to arduino analog pin. for high voltage isolation use small signal transformer or step down transformer.
for current sensing use CT(current transformer ), it provides voltage proportional to current flow. again with rectifier and voltage divider you can sense the voltage and convert that to current.

for internet link there are multiple options.
GSM/GPRS module, WI-FI module, LAN module.
anyone of them can serve your purpose. wi-fi and lan are highly reliable, GSM/GPRS depends upon cellular networks.
i can calculate the exact cost as prices may differ in particular countries but estimate will be around maximum $50 in india.

and be careful with high mains voltage.

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Ekhtiak Efat
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 · PabnaBangladesh
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The hardware part is very easy for me. I want to know about the software and web part. I want to do it with wifi/lan. arduino will send data to web, a mobile app will get the data and show it. and the app can controll the arduino using the same web

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Abhi Verma
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ROBOToTHON 2017 Mentor, Electronics Engineer
 · DelhiIndia
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if you are near to your hardware then u can control it directly but for remote access you will need web api services to send and receive data via internet.

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Ekhtiak Efat
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 · PabnaBangladesh
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Abhi Verma whay should I learn to do that?

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