Add deep sleep between readings

[ClemensGruber]

see https://docs.pycom.io/datasheets/boards/deepsleep/api.html

[einsiedlerkrebs]

I have tried deep sleep, but without success. Tried 1s sleep but device didn't wake up.

I have to admit that I did not do any debugging on this yet.
see: hiveeyes/terkin-datalogger@191a46b

[amotl]

Hi there,

with one of the recent commits [1], the Hiveeyes MicroPython Datalogger Firmware for BOB should support deep sleep well, at least it works on my machine ;].

You might want to pick up the cherries into this codebase. The update will probably not be that difficult, as you can see the patch is rather non-invasive [2] and should reasonably blend into any piece of Pycom MicroPython code.

We will be happy [3] to see or add refinements, especially wrt. to computing the appropriate time_until_next_measurement as seen here with [4].

Cheers,
Andreas.

[1] hiveeyes/terkin-datalogger@3e73a3fe
[2] hiveeyes/terkin-datalogger@3e73a3fe#diff-c23a2e105b0f535cc439641a30ae7806L177
[3] hiveeyes/terkin-datalogger#4
[4]

FiPy/main.py

Lines 75 to 81 in d4c05d1

	perf.stop()
	time_elapsed = perf.read()
	perf.reset()
	time_until_measurement = measurement_interval - time_elapsed
	print('Seconds elapsed: {:.2f}s, time until next measurement: {:.2f}s'.format(time_elapsed, time_until_measurement))
	if time_until_measurement > 0:
	time.sleep_ms(int(time_until_measurement * 1000))

[amotl]

We just wanted to ping you about that @pinguin999 pushed the relevant bits and pieces to #9. Thanks already!