I would like to know if it is possible to use the internal RC oscillator without calibrating every 4s with the softdevice disable. I just want to read a sensor every 2s and I dont need very precise timing so I dont need to calibrate the internal RC oscillator very often. Then once I detect a certain level in the sensor I would like to be able to enable the softdevice to connect to a central device. I want to keep both cost and power consumption low.
I would like also to know if it is possible to enable the softdevice without calibrating 4s till the radio is in use. This will simplified my code as I will be able to use the timer callbacks from the softdevice.
Thank you.