Connect 1 main Arduino sensor to multiple sensors that report to custom iOS app

Projects General Guidance
1

Hi there!

I am very very new to Arduino. I have been researching a ton, and am getting close but still need help.

I have been trying to figure out how to have one main sensor detect when other sensors come into its radius. Although I want this one main sensor to detect multiple different sensors. So each of these smaller multiple sensors would need different IDs for the one big main sensor to detect. I then want all of this data of how often these individual multiple/smaller sensors triggered the main big sensor to report back to a custom built iOS app. Each individual sensor would need its own individual data in a different user account. I do not want the data to get mixed and have the same number of triggers in all the accounts.

So far I have thought about using ultrasonic sensors with Bluetooth.

I would be very grateful for any help!

Thank you so much!!! :smiley:

2

I have been trying to figure out how to have one main sensor detect when other sensors come into its radius.

Sorry, but I can't make any sense of that. Sensors don't detect sensors

Do you perhaps mean that the main sensor will return a value and you want to detect when one or more other sensors return a similar value ?

3

Kind of, it does not have to be a sensor, but I want the main sensor to detect when a specific object comes near it. There will be multiple different objects that each have unique identifiers. Each time a unique ID comes near the main sensor, I want this data of how many times an individual ID came near the main sensor to record this data into a custom-built iPhone app. So how many times a unique ID triggered the main sensor.

Thank you!!

4

So how many times a unique ID triggered the main sensor.

An array holding the total for each object would do the job. Update the appropriate array element when an object becomes identified

Either send all of the totals to your iPhone app when any of the totals change or only send the total that has changed. Either way it would be a good idea to precede each value with a unique identifier and for the app to identify which object each total relates to