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Add ability to sleep until an alarm #2795
Description
Activity
Here is an example:
import sleepio import time import alarm.pin import alarm.time pin0_alarm = alarm.pin.PinLevelAlarm(board.IO0, True, enable_pull=True) time_alarm = alarm.pin.TimeAlarm(time.monotonic() + 10.0) while True: # start with a light sleep until an alarm triggers. alarm = sleepio.sleep_until_alarm(pin0_alarm, time_alarm) # do something based on what alarmed if alarm == pin0_alarm: print("pin change") elif alarm == time_alarm: print("time out")
[Example updated for newer sleep API, see #2796]
Reacted by Timon
#2685 only adds light sleep during
time.sleep. We should add a new mechanic for sleeping until an alarm.An alarm can be anything a microcontroller supports during sleep such as RTC alarm, pin change interrupt and comparator. The alarms should be in separate modules so that the microcontrollers can support different ones.
Then, one
sleep_until_alarm()function can take any number of alarms. It will return the object that woke it up.