Fisrt, I’ll talk about my idea. I have an “Android Powered device”, “Arduino Mega 2560/UNO”, “ESP8266 V7”, “Relay module”, and some sensors.
I want to use Arduino to read data from sensors and send it over the internet to android device, then I use android device to send commands to the arduino to control the relay by the same way. I have read several websites but they use Ethernet shield instead.
Where should I start, is it possible to do this?
Oh, sorry you guys, I mean the connection is like this: Arduino <=> Server <=> Android Device
I have an old PC with 8Gb RAM, Core i5 760 (2.8 MHz, 4 Cores, 4 Threads), 200 Gb hard drive.
The “server” I use is my computer, that mean, I don’t want to use free DNS or free server on the Internet, AND I can contact with arduino from any where on Earth.
Thanks for your help!