rucabelda:
- The place where my project is , has a very low internet connection, lets say no connection at all.. is there a way to overpass this?
Of course. Just dig a trench for a cable between that point and your nearest ISP access point and you have Internet connection.
For example use an arduino where the wifi signal is good and send the command from where I am which is in other place 200 km apart to the arduino with good wifi signal, and then send the command to the other wifi via bluetooth? How can I overpass this issue?
Bluetooth and WiFi are not compatible. WiFi has a better range than Bluetooth. No idea what you're even trying to do here.
The project is working in a loop all the time and works according the information received by the senosrs. How can I introduce in the code, a command like: Every time I press a button (or turn on a digital pin XXX) arduino pauses the loop, makes what I want and then continues the loop where it was paused.. Is this possible?
Sure, can do.