DSB1820 Onewire sensor on SiPy

[sk]

@bucknall I did this in my tempsensor.py file:

from machine import Pin
#from ds18x20 import DS18X20
import os
os.listdir('/flash')
#d=DS18X20(Pin('G17', mode=Pin.OUT))
#result=d.read_temps()
#print(result)

Which gave this output:

Running TempSensor.py
>
MicroPython v1.8.6-422-g516b861 on 2017-02-07; SiPy with ESP32
Type "help()" for more information.
>>>

[bucknall]

@sk I think you need to either wrap the code in a print statement to see an output

print(os.listdir('/flash'))

or run it from the REPL to see the output

>>> import os
>>> os.listdir('/flash')

[sk]

@bucknall

Running TempSensor.py
['boot.py', 'sys', 'lib', 'cert', 'main.py', 'project.pymakr']
>
MicroPython v1.8.6-422-g516b861 on 2017-02-07; SiPy with ESP32
Type "help()" for more information.
>>> 

So How can I add it to lib?

[bucknall]

@sk it looks like your ds18x20.py didn't upload to the SiPy. To use the sync function in Pymakr, to copy your code over to your SiPy, you need to first create a project.

Once you're got a new project, if you create a folder called 'lib' and place the ds18x20.py into this folder and then press sync, it should put it into the lib folder!

[sk]

@bucknall
Ok so I made a new project called 'TempSensor' and in the same folder of this project I made another folder called 'lib'.
Inside lib folder I pasted the ds18x20.py, onewire.py and onewire.diff libraries.
Then in the project folder I made boot.py:

from machine import UART
import os
import machine
uart = UART(0, 115200)
os.dupterm(uart)

and main.py:

import os
import pycom
from machine import Pin
#from ds18x20 import DS18X20
print(os.listdir('/flash'))
pycom.rgbled(0x000000) # rblack
#d=DS18X20(Pin('G17', mode=Pin.OUT))
#result=d.read_temps()
#print(result)
machine.idle()

Then I synced and then ran my program and this is the output:

Running main.py
['__init__.py', 'sys', 'lib', 'cert', 'TempSensor.py', 'main.py', 'boot.py', 'project.pymakr']
>
MicroPython v1.8.6-422-g516b861 on 2017-02-07; SiPy with ESP32
Type "help()" for more information.
>>> 

As you can see the library is still not there. But if I go

print(os.listdir('/flash/lib'))

The output says its there:

Running main.py
['ds18x20.py']
>
MicroPython v1.8.6-422-g516b861 on 2017-02-07; SiPy with ESP32
Type "help()" for more information.
>>> 

Why doesn't it show the onewire.py/diff?

[sk]

@bucknall
Ok all libraries seem to be in the right place now. My main.py:

import os
import pycom
from machine import Pin
from ds18x20 import DS18X20

#pycom.rgbled(0x000000) # rblack

d=DS18X20(Pin('G17', mode=Pin.OUT))
result=d.read_temps()
print(result)
machine.idle()

My output however gives this error:

Syncing the project with the SiPy. Please wait...
Successfully synced!


MicroPython v1.8.6-422-g516b861 on 2017-02-07; SiPy with ESP32
Type "help()" for more information.
>>> 

Running main.py
Traceback (most recent call last):
  File "<stdin>", line 8, in <module>
  File "/flash/lib/ds18x20.py", line 47, in __init__
  File "/flash/lib/onewire.py", line 246, in scan
  File "/flash/lib/onewire.py", line 274, in _search
  File "/flash/lib/onewire.py", line 148, in write_byte
NameError: name 'pin_lalue' is not defined
>
MicroPython v1.8.6-422-g516b861 on 2017-02-07; SiPy with ESP32
Type "help()" for more information.
>>> 

"pin_lalue" isn't in any of my files or libraries? Why is it looking for something that doesn't exist?

[sk]

I've also followed this pycom Onewire DS18X20 tutorial but the output is again looking for something that doesn't exist:

Running main.py
Traceback (most recent call last):
  File "<stdin>", line 9, in <module>
  File "/flash/lib/onewire.py", line 162, in __init__
  File "/flash/lib/onewire.py", line 124, in scan
  File "/flash/lib/onewire.py", line 132, in _search_rom
  File "/flash/lib/onewire.py", line 36, in reset
NameError: name 'enabXe_irq' is not defined
>
MicroPython v1.8.6-422-g516b861 on 2017-02-07; SiPy with ESP32
Type "help()" for more information.
>>> 

at line 36 in the onewire library it is enable_irq(1)... not enabXe_irq. Paymkr is replacing the 'l' with 'X'???

[livius]

use official onewire driver
https://github.com/pycom/pycom-libraries/tree/master/examples/onewire
it work for me on Wipy2.0

but first check if your file is not corrupted
try compare it in text editor e.g Notepad++, Total Comander, WinMerge ...
i mean - read file e.g. throught ftp and compare with file you thing that should be stored
because i see in your error message corrupted name "enabXe_irq" which not exists in onewire driver

[sk]

@livius

0_1487543077630_onewire.py
this doesnt have enableXe_irq, I don't think its the files thats faulty. Something is wrong with my code or the order I'm doing things, I'm pretty sure, I just don't know what?

[livius]

@sk
Is this what you downloaded from board or what you have on the computer?
Previously (for me still - however less than before) there are some corruption of files stored on the board.

try something like this

f = open('onewire.py', 'r+')
d = f.readall()
print(d)

do you see some corruption in content?

Try also downloading file throught ftp - is this file same as your on the computer?