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ERROR:opc:Could not parse the fimrware version from Traceback (most recent call last): #81
Description
Hello! I'm having problems with opc-n2. I already check the cables and the power. I also update the library.
This is my program:
import spidev
import opc
from time import sleep
spi = spidev.SpiDev()
spi.open(0, 0)
spi.mode = 1
spi.max_speed_hz = 500000
alphasense = opc.OPCN2(spi)Turn the opc ON
alphasense.on()
sleep(1)Read the information string
print (alphasense.read_info_string())
# Read the histogram
print (alphasense.histogram())
# Turn the opc OFF
alphasense.off()The return is:
ERROR:opc:Could not parse the fimrware version from
Traceback (most recent call last):
File "/home/pi/.local/lib/python2.7/site-packages/opc/__init__.py", line 77, in __init__
self.firmware['version'] = int(re.findall("\d{3}", infostring)[-1])
IndexError: list index out of range
ERROR:opc:Could not parse the fimrware version from
Traceback (most recent call last):
File "/home/pi/.local/lib/python2.7/site-packages/opc/__init__.py", line 77, in __init__
self.firmware['version'] = int(re.findall("\d{3}", infostring)[-1])
IndexError: list index out of range
ERROR:opc:Could not parse the fimrware version from
Traceback (most recent call last):
File "/home/pi/.local/lib/python2.7/site-packages/opc/__init__.py", line 77, in __init__
self.firmware['version'] = int(re.findall("\d{3}", infostring)[-1])
IndexError: list index out of range
ERROR:opc:Could not parse the fimrware version from
Traceback (most recent call last):
File "/home/pi/.local/lib/python2.7/site-packages/opc/__init__.py", line 77, in __init__
self.firmware['version'] = int(re.findall("\d{3}", infostring)[-1])
IndexError: list index out of range
ERROR:opc:Could not parse the fimrware version from
Traceback (most recent call last):
File "/home/pi/.local/lib/python2.7/site-packages/opc/__init__.py", line 77, in __init__
self.firmware['version'] = int(re.findall("\d{3}", infostring)[-1])
IndexError: list index out of range
ERROR:opc:Could not parse the fimrware version from
Traceback (most recent call last):
File "/home/pi/.local/lib/python2.7/site-packages/opc/__init__.py", line 77, in __init__
self.firmware['version'] = int(re.findall("\d{3}", infostring)[-1])
IndexError: list index out of range
Traceback (most recent call last):
File "opc_spi_basico.py", line 10, in <module>
alphasense = opc.OPCN2(spi)
File "/home/pi/.local/lib/python2.7/site-packages/opc/__init__.py", line 293, in __init__
super(OPCN2, self).__init__(spi_connection, model='N2', **kwargs)
File "/home/pi/.local/lib/python2.7/site-packages/opc/__init__.py", line 71, in __init__
raise FirmwareVersionError(msg)
opc.exceptions.FirmwareVersionError:
Your firmware version could not be automatically detected. This is usually caused by bad wiring or a poor power supply. If niether of these are likely candidates, please open an issue on the GitHub repository at https://github.com/dhhagan/py-opc/issues/new. Another option would be to
increase the max_cnxn_retries variable if you feel the serial communication is being held up for some reason.
Activity
dhhagan commentedon Jun 12, 2020
Hi @tomasfichetti Is this still an issue? Sorry for the long delay here...
dwitam commentedon Dec 19, 2020
Hello, Getting the same issue. Can you help me out.. I am using OPC-R1.
ERROR:opc:Could not parse the fimrware version from 1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó1ó
Traceback (most recent call last):
File "/home/pi/py-opcr1/opc/init.py", line 77, in init
self.firmware['version'] = int(re.findall("\d{3}", infostring)[-1])
IndexError: list index out of range
dhhagan commentedon Dec 19, 2020
Hi @dwitam can you post the code you're using? There currently isn't support for the OPC-R1 or OPC-N3 in the master branch as they're completely different. There is a development branch that supports (hopefully) these sensors, but it hasn't been tested.
dwitam commentedon Dec 21, 2020
`import spidev
import opc
import time
#? Open a SPI connection on CE0
spi = spidev.SpiDev()
spi.open(0,0)
#? set the SPI Mode and clock speed
spi.mode=1
spi.max_speed_hz= 500000
try:
alpha=opc.OPCR1(spi)
except Exception as e:
print(e)
alpha.on()
time.sleep(1)
print("<---------Reading Firmware version-------------->")
print(alpha.read_firmware())
print("Read info string")
print(alpha.read_info_string())
print("Read serial number")
print(alpha.sn())
print("Read Histogram")
print(alpha.histogram())
time.sleep(10)
print("Read PM")
print(alpha.pm())
print("Pinging From RPI")
print(alpha.ping())
#time.sleep(10)
#Turn the device off
alpha.off()
`