How to send value to thunkable x app via ble using a rn4020

I am doing a project that use rn4020 ( a BLE microchip) with arduino and try to send data ( numeric) to thunkable x app. But i donnot know how to star :joy: :joy: :joy:
Can anyone show me how to get the uuid of rn4020: i try to use the ble scanner app but it return many uuid.
And please show me how to write the arduino code in which can send value to tunkable x app.
Thank all in advance :two_hearts: :two_hearts: :two_hearts:

Hey @H_i_CH_n_Nguy_n

You can try something like light blue to give you all the details about your BLE device(s)

Hope that helps!

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