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Hello, I am using BLE shield from Redbear Lab v2.1, with nRF 8001 BLE chip on it, with Arduino UNO- how to find connection interval

I want to get sensor data from arduino, with atleast 200 samples per second, but at present I am only getting around 20 samples per second. I went through forums and got to know that nRF8001 can send only 1 data packet per connection event, and the RBL_nRF8001.cpp file tells, I can send upto 64 bytes of data each packet. Thus, I am able to send 64 bytes data in each connection event, so now I need to know what is the default connection interval for this nRF8001, so that I can calculate what no of bytes I can transfer in 1 second, ( I need 200 samples of 10 bit sensor value from Arduino). I installed nRF go studio to check connection interval, but I don’t know how can I find it. Can someone tell me where to look for some proper explanation to use nrf go studio, and find connection interval or how to create my own service so that i can set the parameters as i want. I am new to BLE and to Arduino, it would be helpful if anyone can help me and also suggest if I am going wrong. Thank you

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