https://devzone.nordicsemi.com/f/nordic-q-a/42651/architecture-suggestions---updating-ble-advertisement-data-from-i2c-irq-softdevice-crashesHi, I have a PCA10040 connected with some wires to an external I2C device and I need to poll data from the I2C device and send it over BLE, also updating the advertisement packet contents. At the moment I have a very simple setup: APP TIMER HANDLERen-USTelligent Community 13Thu, 17 Jan 2019 12:41:37 GMThttps://devzone.nordicsemi.com/thread/166219?ContentTypeID=1Thu, 17 Jan 2019 12:41:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:29dec399-2387-4a16-93da-1d97da3360dcJ&#248;rgen Holmefjord<p>Hi,</p> <p>I would recommend using the scheduler. This module is well tested and are used in many applications.</p> <p>Best regards,<br />Jørgen</p><div style="clear:both;"></div>