I'm relatively new to arduino projects and am trying to solve a real world problem on a parking lot space counter. My Idea is to have a sensor placed on the entrances and exit to count the total number of cars in the parking lot. Now there are several codes online but they only implement for 1 entrance.
Scaling for 4 entrances:
Would it be ideal to implement 1 main unit with multiple cables running to each sensors placed on the entrances and exits of the parking lot.
Given that the parking lot is huge:
Is there a wireless way to transmit data from each sensor to the central unit ?
I'm welcoming any recommendations regarding this project.
EDIT: This is for an actual prototype. I've scoped around the garage to find that I only need multiple entry exit (2) system for the ground floor. Rest of the two floors have their own 1 entry and exit points. The entrance and exit are the same point so I was thinking of a bidirectional sensor.
Does 10 feet of width pose a problem for the sensor ? Could I instead use two bi-directional sensors placed on either sides of the entry and exit, and then hook them up to the same input in the Arduino ? So incase 1 misses the other one registers.
Edit 2: The parking deck is big enough to hold about 20-25 cars on each of the 3 floors. I don't know the exact measurement though
Besides Sensors could I use a wire on the floor to register when a car crosses over ? Would that be easier?
