Accelerometer wake-up features added to Pytrack and Pysense

[Meirssv]

@catalin said in Accelerometer wake-up features added to Pytrack and Pysense:

@meirssv, Ok, great!

you could use the wakeup reason to verify if the accelerometer awoke the system

Yes, I already figured that one out. You could even check the remaining seconds < 1s... Thanks!

[ThomasP]

Hi @catalin, I'm new in programming and it looks like I've missed something.
When I try this script it returns 96 as a Wakeup reason. The red led is on all the time.

What should I do ? I'm using Pysense board and everything is updated.

[catalin]

Hi @thomasp, on the first call, the return value could have some garbage; but the valid values are (1, 2, 4 or 8).
Could you put it to sleep: py.go_to_sleep() and wake it up immediately pressing the Reset button (from the Pysense)? You should obtain value 2, of the py.get_wake_reason()
Here are the Sleep functions explained: https://docs.pycom.io/chapter/pytrackpysense/apireference/sleep.html

[ThomasP]

@catalin

Well I tried and It doesn't work. Now I can't connect my board anymore. It says "Failed to connect (Error : Port is not open)." or "Failed to connect (Error: Writing to COM port (WriteFile): Unknown error code 22)."

Each time I run the script with these commands, the program doesn't execute the line. I mean it starts looping but stay at the same line and I can't do anything. I have to unplug the board to be able to restart the script.

[catalin]

@thomasp There seems to be a problem with COM port (serial port). What program are you using to connect/upload scripts? Atom with pymakr plugin?
Once the go_to_sleep() is executed, the serial connection is disconnected, and it comes back after the Pysense is awaken; and next, the script is executed again. This situation loops, and becomes difficult to catch the serial COM ready for connection.
So, for development purpose, maybe you should not have go_to_sleep() in the script, but execute it manually, on the REPL console (>>>).
The script can be stopped with Ctrl+C.

[ThomasP]

@catalin
Yes I'm using Atom with pymark as recommanded. How do I wake up my board ? I'm pressing the restart button and shaking it but I can't connect it.
It never stops connecting and disconnecting it.

[catalin]

@thomasp
Yes, it seems the script keeps on re-executing quickly after wakeup.

Try safe-boot procedure; if you don't have Expander board, could be tricky: https://docs.pycom.io/chapter/toolsandfeatures/bootmodes.html

On Windows platform, maybe Realterm can catch the serial https://realterm.sourceforge.io; on linux+mac that would be minicom and allow you to give Ctrl+C to stop the scripts.

[ThomasP]

@catalin

I can now run a simple program but I can't use pycom.rgbled().
It says : "OSError: the requested operation is not possible"
And sometimes I get : "An error occurred: Not enough memory available on the board.
Upload failed. Please reboot your device manually."

But I tried all the reboot and reset but It doesnt work.
So I used the command to Reset the Filesystems but still the same errors appears.

I updated firmware just in case but no result.
The led is flashing blue every 4 seconds.

[seb]

@ThomasP

Could you create a new forum thread for the issues you are facing and I will help you get your board set up and running.

[KenM]

Hi,

I have an extra I2C sensor on the Pysense. (water pressure)
I would like to wake up my lopy4 if it's above a certain value.

Can this be done?
And which code should I change/update?

Thanks