Transmitting data from Arduino to React Native app?

Projects Programming
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Hi, I’m wondering how does one transmit live data from the Arduino to a React Native app? I will need help with the Arduino code and React Native code, but if anyone has an example that I could look at, that would be perfect!!

An example of what I’m looking for would be Arduino sending the temperature to React Native and have it rendered as a “thermometer”.

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Hi, I'm wondering how does one transmit live data from the Arduino to a React Native app?

What is a React Native app? Where does it run? How is the device it runs on connected to the Arduino?

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PaulS:
What is a React Native app? Where does it run? How is the device it runs on connected to the Arduino?

React Native is a JavaScript framework for writing real, natively rendering mobile applications for iOS and Android. It should be able to run on an iPad 6th gen. Connection will be using BLE.

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Connection will be using BLE.

Are you using a BLE library? If so, it should have methods for writing data to the device which will transmit it. Then, you write the data in the format that the app expects, or you write the data however you want, and write the app to expect that data.