Francis Schumacher
An attempt to provide a Real Time Clock for the nRF51-DK. This code provides rtc.time and rtc.set_time replacements for the similarly named C standard methods (unimplemented for nRF51-DK last I checked). Not very well tested, but it seems to work for simple applications.
Dependents: nRF51_rtc_example LoRa_PIR BLE_Lightning_sensor BLE_AlarmWatch ... more
Make update_rtc() an actual static method
...instead of an instance method.
This allows it to be used in ticker.attach.
Fixed clock drift
Calling time() often will cause clock drift by forgetting the fractional part of the seconds (ticks.) Fixed by offsettin rtc_previous by the number of "unused" ticks.