Ionic 4 - Bluetooth Low Energy - "chat" with device

Hi everyone.
I have a challenge that surpasses me.
I write application to communication with device with the use bluetooth low energy (BLE).On device BLE communication is based on the ATMEL CSC software framework. At the beginning I will mark that Bluetooth Serial ( plugin does’t connect with device.

I use BluetoothLE plugin (github docs

Connection, discoverd all services, subscribtion on service works perfectly.


I have no idea how to send a request for the parameters and answer the answer. I use the application that allows “chat” with the device and there I can send such a rare payment and I get an answer but I do not know how to solve it in my application. Perhaps I should do the right steps in the right order, but I do not have any ideas anymore.

method returns:

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