https://devzone.nordicsemi.com/f/nordic-q-a/22630/advertising-start-and-diconnect-on-event-raised-is-creating-problem-in-pin-16-and-15-scl-and-sdaHi, I am working on custom Board with nrf52382, I am using the mma8652 accelerometer for different functionality(prior is single and double tap detection). Initially On an interrupt raised for double tap detected I am setting different advertisingen-USTelligent Community 13Tue, 20 Jun 2017 11:10:41 GMThttps://devzone.nordicsemi.com/thread/89018?ContentTypeID=1Tue, 20 Jun 2017 11:10:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:27339e1e-a877-4538-b124-31aa663d471bHung Bui<p>Could you elaborate a little bit more ? Have you tried what I suggested ?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/89017?ContentTypeID=1Mon, 19 Jun 2017 07:49:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1e6ab1f9-ab4c-4116-9a97-d57a4f0eb194Prashant Singh<p>Thanks for the response. It was data available on i2c pins that encounter this problem.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/89019?ContentTypeID=1Fri, 09 Jun 2017 10:52:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e28f903e-9e85-4835-b4f1-0b5a786d2d23Hung Bui<p>Please hook a logic analyzer and check if there is data on I2C pins.</p> <p>How do you trigger the communication between the accelerometer and the nRF5 chip ? When you say no interrupt raised , have you check if actually a pulse on the interrupt pin from the MMA8652 ?</p> <p>I don&#39;t think there is any relation between Bluetooth disconnection and I2C, unless you have some code control that. When the app is killed on the phone, the OS will disconnect the connection, it&#39;s the BLE_GAP_EVT_DISCONNECTED event that you will receive.</p><div style="clear:both;"></div>