How do I enable/disable automatic advertising after GPIO Pin state?

[koustubhavachat]

I want to advertise only when GPIO pin is High. It should not Advertise when GPIO pin is Low.

[Einar Thorsrud]

You can do this by triggering an interrupt on a pin change, and call sd_ble_gap_adv_start() or sd_ble_gap_adv_stop() as appropriate in the interrupt handler.

You could probably make a simple demonstration by basing your code on for example the Beacon Transmitter Sample Application and looking at the Pin Change Interrupt Example.

[Einar Thorsrud]

If the device is getting reset, it is likely due to an error that is caught by a APP_ERROR_CHECK(). If DEBUG is not defined for your project, the default error handler will trigger a reset. If you define DEBUG for your project and disable optimization, you can use a debugger to see where the error occurred and with what error code. This blog post describes the process in detail.