Hello guys. Im a noob to Arduino but I'm going to build an Ardunino Elevator Display for the resturant I work at. Because our food elevator dosen't have an elevator display, so we can't see where the food is.
So what my idea is.
I'm going to place an arduino inside the elevator with an BMP180 GY68 pressure/altitude sensor (The elvator travels 7 meters from the kitchen to the resturent).
In the kitchen and the resturant I'm going to place an Arduino with an 1602 LCD Display Module to display where the elevator is (So if the altitude is close enouth to the altitude in theresturant the display will show 'Elevator is in the resturant' and if the altitude is close enouth to the altitude of the kitchen the display will show 'Elevator is in the kitchen'.
To communicate bewtween the 3 arduinos I'm going to use 3 ESP8266 wifi module, one with the sensor in the elvator and one to each of the ardunios in the kitchen and the resturant.
Then I will setup the ESP8266 in the elevator as an access point and let the 2 other arduinos connect to this access point and then communite that way.
So I have some questions about my idea:
1) will the BMP180 GY68 be able to detect the 7m change?? (Is says it has an 0.25m resolution, so does that mean that it can detect 0.25m changes?)
2) When I setup the ESP8266 as an access point will it be able to communicate to the 2 other arduinos? (It just have to send the altitude like ever 1 second or something like that)
3) Can the arduinos connect to an internet through an metal elevator?
4) Will this idea work??
Thanks in advanced