Hi for school I am making an App that has to receive the data from an Arduino laser receiver but we can't find how we can translate this in our app. Already big Thanks!
This link
https://srituhobby.com/laser-transmitter-and-receiver-module-with-arduino/ might help with the receiver.
I imagine linking the App Inventor part would be code similar to what is described How to make a digital distance meter using the MIT app inventor|Ultrasonic sensor|Arduino Project! - YouTube
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