Wake-up Problem with Pyscan and the accelerometer

[iot-transport]

Hi,

I think I have a problem with my pyscan board. The wake-up doesn't occur with the accelerometer. It's ok with the button and the timer.
The same code on my Pysense works fine (the sample code of the library).
I don't understand why it doesn't work the same on the two boards.
Thanks for your help.

The sample code which has been used:

from pyscan import Pyscan
#from pytrack import Pytrack
#from pysense import Pysense
from LIS2HH12 import LIS2HH12
import pycom
import time
pycom.heartbeat(False)
py = Pyscan()
#py = Pytrack()
# py = Pysense()

# display the reset reason code and the sleep remaining in seconds
# possible values of wakeup reason are:
# WAKE_REASON_ACCELEROMETER = 1
# WAKE_REASON_PUSH_BUTTON = 2
# WAKE_REASON_TIMER = 4
# WAKE_REASON_INT_PIN = 8
print("Wakeup reason: " + str(py.get_wake_reason()) + "; Aproximate sleep remaining: " + str(py.get_sleep_remaining()) + " sec")

time.sleep(0.5)

# enable wakeup source from INT pin
py.setup_int_pin_wake_up(False)

# enable activity and also inactivity interrupts, using the default callback handler
py.setup_int_wake_up(True, True)

acc = LIS2HH12()
# enable the activity/inactivity interrupts
# set the accelereation threshold to 2000mG (2G) and the min duration to 200ms
acc.enable_activity_interrupt(2000, 200)

# check if we were awaken due to activity
if acc.activity():
    pycom.rgbled(0xFF0000)
else:
    pycom.rgbled(0x00FF00)  # timer wake-up

time.sleep(0.1)

# go to sleep for 5 minutes maximum if no accelerometer interrupt happens
py.setup_sleep(300)
py.go_to_sleep()```

[Paul Thornton]

@gnm

Correct. You'll wont be able to call setup_sleep() via repl. Unless you wrap it in a function to call go_to_sleep() immediately after. setup_sleep() currently causes an issue where everything blocks untill go_to_sleep() is called. Its one we are aware of but I dont have a roadmap for a change/fix.

[gnm]

Hi,
I don't know if this is usefull, but the command

py.setup_sleep(N)

seems to cause my problem (or al least part of it).
I have tryed executing the following simple code from REPL

from pytrack import Pytrack
py = Pytrack()
py.setup_int_pin_wake_up(True)
py.setup_sleep(5)
py.go_to_sleep()

As far as I understand, this should put the board to sleep mode and wake up after 5 sec. (I don't know if executing it in REPL mode changes the behaviour). However, when execute the line

py.setup_sleep(5)

atom blocks out and I have to restart the program.

[gnm]

Hi,
I am having a similar problem with the pytrack (plus fipy). I have the latest firmware versions, but the board never wakes up. The only way recover the board is by a safe boot...:(
I don't know what could be the problem, but you are not alone.