Apps Android BLE change connection parameters

[vitorarraisdesa]

Hi,

I am currently facing some problems using BLE, I am trying to connect my APP to four embedded BLE devices and after connecting I need to get the antennas RSSI to calculate its position. But the default connection parameters are already set and cannot be changed, and I need the timeout and connection transmitting power changed to lower values.

Is it possible?

Do I need to use JNI or NDK?