Timer or RTC for 5 - 60 sec delay

[Fluke185]

Hi All, I am using the Nordic nRF52 nrf52832 device to read a value in from an Android device. The value will be between 5 and 60 seconds. I'm using the experimental_ble_app_blinky to control the BLE side of things. Is it best to use RTC or will a simple delay do the job. Thanks

[endnode]

If by "simple delay" you mean nrf_delay_us or nrf_delay_ms then NO, you should never use these functions in multipurpose application with BLE. It is blocking code so MCU won't be usable for that time (= you effectively kill it for the time of delay). Always prefer RTC based timers (e.g. app_timer library is great and simple to use).