Sipy+Pytrack, Deepsleep and power consumption problem

[devinv]

I have a Sipy on a pytrack (with the shield on) and a huge power consumption problem
My 2000maH battery is empty in 48 hours. Which is ridiculous.

Seems to be a deepsleep problem.
I can only put the sipy to deepsleep using :

import machine
machine.deepsleep(600000)

that works, but it is useless as the pytrack is the one consumming

I tryed

from pytrack import Pytrack
py = Pytrack()
py.setup_sleep(10)
py.go_to_sleep()

But the code get stuck after py.setup_sleep(10)
I have to unplug and replug to get things running again.

Support asked me to try :

from deepsleep import DeepSleep
import deepsleep

ds = DeepSleep()

# get the wake reason and the value of the pins during wake up
wake_s = ds.get_wake_status()
print(wake_s)

if wake_s['wake'] == deepsleep.PIN_WAKE:
    print("Pin wake up")
elif wake_s['wake'] == deepsleep.TIMER_WAKE:
    print("Timer wake up")
else:  # deepsleep.POWER_ON_WAKE:
    print("Power ON reset")

ds.go_to_sleep(10)  # go to sleep for 10 seconds

But i got a
IndexError: bytes index out of range
on the ds.get_wake_status()

if I go straight to ds.go_to_sleep(10) it get stuck as previously

I don't know what to do.
48h of use is not what I had in mind when I've started this project

Please, help me.

[jcaron]

@devinv the second one is the right one, but you can’t just type it (or even copy-paste it) on REPL: setup_sleep will start changing the state of the PIC and disable USB before you can enter the next call.

Put that code in a function and call the function, it’ll work.

[devinv]

@jcaron Thanks a lot. It does work. If I'm using this Deepsleep function (for pytrack), do I need the shield?

[jcaron]

@devinv no, if you use a Pytrack or Pysense, you don’t need the Deep Sleep Shield, all three do the same thing in terms of controlling deep sleep.

[devinv]

@jcaron Great, thanks, because it doesn't work when it is on.

[devinv]

@devinv Actually, I thought it did but my card is not responsive and I'm now stuck.
I get a continuous

rst:0x7 (TG0WDT_SYS_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff8028,len:8
load:0x3fff8030,len:1728
load:0x4009fa00,len:0
load:0x4009fa00,len:14584
entry 0x400a059c
Starting theets Jun 8 2016 00:22:57

and the hard reset (pin 12 on 3V for one second) is not getting me out of it.
What should I do?

[devinv]

@jcaron Actually I still have a problem.
The py.go_to_sleep() does work but on the wake up the gps is not returning anything

if I do

py = Pytrack()
gps = L76GNSS(py, timeout=60)
coord = gps.coordinates()

machine.deepsleep(10000)

It does work, I get new coordinate very 10 secondes (but the chip is using lots of power cause it is not a full Deepsleep)

but if I do

py = Pytrack()
gps = L76GNSS(py, timeout=60)
coord = gps.coordinates()

py.setup_sleep(10)
py.go_to_sleep()

It works only on the first launch.
Every following 10 secondes, it does wake up but I will get an empty coord

What is going wrong?

[jcaron]

@devinv it takes a while for a GPS chip to get a fix. You definitely won’t get a position right after wake up, the chip needs to receive ephemeris data, lock onto satellites, compute a position...

This has been discussed several times in the forum, search for the relevant topics for details.