react-native-background-actions VS react-native-ble-manager

For tasks which run in the background when the app is closed: https://github.com/Rapsssito/react-native-background-actions

If react-native-ble-plx seems too advanced, react-native-ble-manager offers another excellent choice. This tool supports all primary BLE capabilities like scanning for devices, establishing connections, transferring data, getting notifications on status changes, and disconnecting. It provides a simple way to get basic BLE functionality working quickly in React Native apps.

The idea is to read the input from those devices. Tried to use react-native-ble-plx and react-native-ble-manager I was able to find and use the EY-016 model, but could not find the EY-017 model. Was thinking about using classic mode, but then I've read about it needs MFI compliance on IOS, which those does not have. But it would be a better solution with classic, as those devices comes as HDI mode as default, so the customer would not need to do extra stuff to get going. And also if I needed to make integration with another device that didn't have BLE.

I believe React Native can definitely handle those requirements, but it would depend on the complexity... What kind of BLE devices? I've used this react-native-ble-manager library and it was pretty straightforward to scan and connect. For notifications, I definitely recommend Notifee or maybe you can leverage Firebase for database, sync, and push notifications.

What kinds of Bluetooth devices and what are you trying to do? I have also been using react-native-ble-manager and it works well for my purposes. There is an example project in that repo.

Use react-native-ble-plx or react-native-ble-manager

I use blemanager and that works pretty good. Bluetooth is tedious though, you have to follow the docs very precise

I've checked https://github.com/innoveit/react-native-ble-manager which does multiple read requests (and multiple notifications) out of the box, but not as one write request. In the second library https://github.com/dotintent/react-native-ble-plx you have to make the chunks manually, but you can't do a "prepare write request".