Pytrack and Pysense Libraries Release 1.0.0

[bucknall]

Hi Everyone,

Today we're sharing the first release version of the Pysense & Pytrack libraries. They're intended to get you up and running with your various Pycom boards/modules and allow you to start using the deep sleep functionality with your devices.

The libraries have the basic functionality of all the sensors include and will be updated down the line to include additional features like interrupts, additional config for the sensors, etc.

Please remember to update both your Pycom device (i.e. LoPy, SiPy, WiPy 2.0) as well as your Pysense & Pytrack before you get started. Check out these two links for how to update both devices (https://docs.pycom.io/pycom_esp32/pycom_esp32/getstarted.html#firmware-upgrades and https://docs.pycom.io/pycom_esp32/pycom_esp32/toolsandfeatures.html#updating-pysense-and-pytrack-firmware, respectively)

Navigate to https://github.com/pycom/pycom-libraries to find the libraries you need. You'll want to grab the Pysense and Pytrack folders for your respective devices. Locate a lib folder for your Pysense/Pytrack; it will contain the various files for each sensor. There will be some examples to follow and the documentation will be updated to reflect the various sensors and changes that have taken place since!

Thanks for your patience and we can't wait to see what you end up building with the new boards! Feel free to tweet them to us, at @pycomiot!

All the best,

The Pycom Team

[amartinez]

@bucknall I'm receiving a syntax error on the pytrack lib:

line 8:
"version = 1.0.0"

[papasmurph]

@bucknall I've rewritten the sensor classes to my liking (pressure instead of altitude, floating point values for all returns, slightly new function names) and for fixing several bugs and oddities. I don't intend to make a pull request, as this would deviate too much, so is there a way I can contribute the code back somehow, for your reference/comparison? It's regarding pysense.py, pytrack.py, LIS2HH12.py, LTR329ALS01.py, MPL3115A2.py and SI7006A20.py. For your info, _concat_hex is a very peculiar function, and completely replaced (I don't like "magic" in my code).

[livius]

@amartinez said in Pytrack and Pysense Libraries Release 1.0.0:

"version = 1.0.0"

yes, it should be i suppose

version = '1.0.0'

it is not used anywhere

[amartinez]

@livius Solved, but then, having this issue:

<LIS2HH12 object at 3ffe7690>                                                                               
<L76GNSS object at 3ffe7680>

[daniel]

@papasmurph please submit a pull request will all your changes, and we will take as much as possible from it. Thanks for contributing :-)

[bucknall]

Hi @papasmurph, please do make a pull request, am always happy to consider improvements - this has been very much an out the door release as we've been pushing to get a minimum working library out the door for people to use!

[papasmurph]

@bucknall I don't use Github for other than complaining about things, so there's certainly some learning curve. It would have been much easier for me to just "zip" the things I changed and send it somehow. I hope that works. Otherwise this might take a few days due to other responsibilities.

[bucknall]

Hi @papasmurph, feel free to send it to me (alex@pycom.io) and I'll look into implementing it for you :)

[livius]

@amartinez said in Pytrack and Pysense Libraries Release 1.0.0:

<LIS2HH12 object at 3ffe7690>                                                                               
<L76GNSS object at 3ffe7680>

What issue? please describe it more..

[gertjanvanhethof]

dfu-util is not working somehow on my linux client.

dfu-util 0.8

Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2014 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to dfu-util@lists.gnumonks.org

Match vendor ID from file: 04d8
Match product ID from file: f011
dfu-util: No DFU capable USB device available

What is going wrong?

[papasmurph]

@gertjanvanhethof Did you do the "press button before plugging in USB" bit?

[jmarcelino]

@gertjanvanhethof
What @papasmurph said and you probably need to be root

[Camot]

I am not sure what the Pysense does, but it is not what I would expect. I am running the following code multiple times within a minute or so. Maybe someone could explain what the results mean. I have a BME280 here and it reports 24.7 C and a humidity of 47.06%. Temperature jumps between 31 and 4800, humidity between 48 and 2800. Pressure.temp is pretty stable but 5C off and why does the pressure sensor not Report pressure?. Ambient returns two values for Lux, both of them impossible during daylight.

from pysense import Pysense
from SI7006A20 import SI7006A20
from LTR329ALS01 import LTR329ALS01
from MPL3115A2 import MPL3115A2


py = Pysense()
pressure = MPL3115A2(py)
tempHum = SI7006A20(py)
ambientLight = LTR329ALS01(py)

print (tempHum.humidity())
print (tempHum.temp('C'))
print (pressure.temp())
print (ambientLight.lux())

I got the following results

>>>
2693.687
31.87222
30.5 
(21, 27)  

>>>
48.81235 
4961.352
30.5
(8, 9)  

>>> 
51.28427 
266.1942 
30.0
(7, 9)

>>>
2849.983
4873.621
28.5625 
(7, 7)

[papasmurph]

@jmarcelino That might even be needed on a Mac.

[papasmurph]

@Camot I've sent Alex new code that should work better (no guarantees though), but temperature is off due to heating from the board. I changed the code to measure pressure instead of altitude.

[bucknall]

@Camot I'm investigating this today and will likely merge @papasmurph's code when I get a chance to review the changes

[Pajarraco]

Maybe its a fool question, but when I try to download the new version 1.0.0 here: https://docs.pycom.io/pycom_esp32/pycom_esp32/toolsandfeatures.html#updating-pysense-and-pytrack-firmware

The download file has the name pytrack/pysense_0.0.2.dfu and not 1.0.0.dfu or something like that.

By the way, I just got working the accelerometer in both pytrack and pysenses, but the humidity, temperature, or glonass sensors don't work :(. May i wait some days more or is something that I have done wrong?

Edit: well, seems that i misunderstood the concept of the version of the DFU and the version of the Pytrack/Pysense libraries...
Futhermore, in the case of the Pysense, i forgot to print the values...Thanks to @Camot I could obtain some values but indeed, they are a bit unstable. About the Pytrack,I cannot get the coords. I modified the read function in order to print what it reads and well, it doesn't appear the word GNGLL so it is stuck in an infinite loop. Any ideas?

[livius]

@Pajarraco
Where do you have pytrack inside building? On it work for me.

[Pajarraco]

@livius I was running next to a window and it didnt work for me. Now I have just peeped the Pytrack outside with one hand and running the script and I could obtain the coords outside and inside. A little strange but well, it works :)