Porta USB e RJ45. Linverter è collegato a raspberry pi3 con raspbian stretch. Monitoro il mio impianto fv con metern.

posta gli errori, ripeto cosi è impossibile fare troubleshooting

Sì, scusatemi.
Il codice che ho testato è quello che postato sopra. Non sono esperto di python, infatto è da poco che ho cominciato a sbatterci la testa contro.
Grazie.

>>> import sys
>>> import crcmod
if comando == 'QPIGS':
    nbytes = 110
elif comando == 'QID':
    nbytes = 18
elif comando == 'QFLAG':
    nbytes = 15
elif comando == 'QPI':
    nbytes = 8
elif comando == 'QMOD':
    nbytes = 5
else:

    print ('Command not found')
    sys.exit(0)

calc_crc(comando)
print('Command='), comando
print('CRC='),crc

crc1=crc[0:4]
crc2=crc[0:2]+crc[4:6]

crc1=int(crc1, base=16)
crc2=int(crc2, base=16)

fd = open('/dev/hidraw0', 'r+')
fd.write(comando+chr(crc1)+chr(crc2)+'\r')
r = fd.read(nbytes).encode('string-escape')

s = r.split("")
print (s)

i = s[0][1:].split(" ")
print (i)

fd.close()>>> import time
>>>
>>> comando = 'QPIGS'
>>>
>>> xmodem_crc_func = crcmod.mkCrcFun(0x11021, rev=False, initCrc=0x0000, xorOut=0x0000)
>>>
>>> def calc_crc(comando):
...     global crc
...     crc = hex(xmodem_crc_func(comando))
...     return crc
...
>>> # calcular crc
... comando = raw_input("Enter command (qflag, qid, qmod, qpi, qpigs): ")
Traceback (most recent call last):
  File "<stdin>", line 2, in <module>
NameError: name 'raw_input' is not defined
>>> comando = comando.upper()
>>> if comando == 'QPIGS':
...     nbytes = 110
... elif comando == 'QID':
...     nbytes = 18
... elif comando == 'QFLAG':
...     nbytes = 15
... elif comando == 'QPI':
...     nbytes = 8
... elif comando == 'QMOD':
...     nbytes = 5
... else:
...
  File "<stdin>", line 12

    ^
IndentationError: expected an indented block
>>>     print ('Command not found')
  File "<stdin>", line 1
    print ('Command not found')
    ^
IndentationError: unexpected indent
>>>     sys.exit(0)
  File "<stdin>", line 1
    sys.exit(0)
    ^
IndentationError: unexpected indent
>>>
>>> calc_crc(comando)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 3, in calc_crc
  File "/usr/local/lib/python3.5/dist-packages/crcmod/crcmod.py", line 432, in crcfun
    return fun(data, crc, table)
TypeError: Unicode-objects must be encoded before calculating a CRC
>>> print('Command='), comando
Command=
(None, 'QPIGS')
>>> print('CRC='),crc
CRC=
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'crc' is not defined
>>>
>>> crc1=crc[0:4]
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'crc' is not defined
>>> crc2=crc[0:2]+crc[4:6]
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'crc' is not defined
>>>
>>> crc1=int(crc1, base=16)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'crc1' is not defined
>>> crc2=int(crc2, base=16)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'crc2' is not defined
>>>
>>> fd = open('/dev/hidraw0', 'r+')
>>> fd.write(comando+chr(crc1)+chr(crc2)+'\r')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'crc1' is not defined
>>> r = fd.read(nbytes).encode('string-escape')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'nbytes' is not defined
>>>
>>> s = r.split("")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'r' is not defined
>>> print (s)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 's' is not defined
>>>
>>> i = s[0][1:].split(" ")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 's' is not defined
>>> print (i)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'i' is not defined
>>>
>>> fd.close()

Sera ragazzi, ho messo su grafana, direi fantastico! Pochi minuti di configurazione e i grafici sono già belli che pronti! Per la produzione devo ancora installare il sensore di corrente tra regolatore di carica e batteria... spero presto.

grafana

Bello il nuovo sito di monitoraggio!
Scusa eliafino perché non fai una lettura diretta dello shunt del PCM? Io faccio così con Arduino per conoscere la corrente in circolo..

CITAZIONE (Luca450Mhz, 14/07/2020 16:28:45 )

CITAZIONE (eliafino, 14/07/2020 15:21:15 )

CITAZIONE (maxsemp, 14/07/2020 17:09:34 )

Anch'io vorrei leggere da hidraw0, ma fino adesso no ci sono riuscito.

CITAZIONE (maxsemp, 14/07/2020 17:57:09 )

Anch'io vorrei leggere da hidraw0, ma fino adesso no ci sono riuscito.

#!/usr/bin/python

import os, sys
import time

fd = os.open('/dev/hidraw0', os.O_RDWR | os.O_NONBLOCK)
os.write(fd, 'QPIGS\r')
time.sleep(0.2)
r = os.read(fd, 137).encode('string-escape')

while r.find('r') == -1 :
	time.sleep(.1)
	r = r + os.read(fd, 137).encode('string-escape')

s = r.split("")
print s

os.close(fd)
sys.exit(0)

CITAZIONE (maxsemp, 14/07/2020 18:47:17 )

Sì, scusatemi.
Il codice che ho testato è quello che postato sopra. Non sono esperto di python, infatto è da poco che ho cominciato a sbatterci la testa contro.
Grazie.

>>> import sys
>>> import crcmod
if comando == 'QPIGS':
    nbytes = 110
elif comando == 'QID':
    nbytes = 18
elif comando == 'QFLAG':
    nbytes = 15
elif comando == 'QPI':
    nbytes = 8
elif comando == 'QMOD':
    nbytes = 5
else:

    print ('Command not found')
    sys.exit(0)

calc_crc(comando)
print('Command='), comando
print('CRC='),crc

crc1=crc[0:4]
crc2=crc[0:2]+crc[4:6]

crc1=int(crc1, base=16)
crc2=int(crc2, base=16)

fd = open('/dev/hidraw0', 'r+')
fd.write(comando+chr(crc1)+chr(crc2)+'\r')
r = fd.read(nbytes).encode('string-escape')

s = r.split("")
print (s)

i = s[0][1:].split(" ")
print (i)

fd.close()>>> import time
>>>
>>> comando = 'QPIGS'
>>>
>>> xmodem_crc_func = crcmod.mkCrcFun(0x11021, rev=False, initCrc=0x0000, xorOut=0x0000)
>>>
>>> def calc_crc(comando):
...     global crc
...     crc = hex(xmodem_crc_func(comando))
...     return crc
...
>>> # calcular crc
... comando = raw_input("Enter command (qflag, qid, qmod, qpi, qpigs): ")
Traceback (most recent call last):
  File "<stdin>", line 2, in <module>
NameError: name 'raw_input' is not defined
>>> comando = comando.upper()
>>> if comando == 'QPIGS':
...     nbytes = 110
... elif comando == 'QID':
...     nbytes = 18
... elif comando == 'QFLAG':
...     nbytes = 15
... elif comando == 'QPI':
...     nbytes = 8
... elif comando == 'QMOD':
...     nbytes = 5
... else:
...
  File "<stdin>", line 12

    ^
IndentationError: expected an indented block
>>>     print ('Command not found')
  File "<stdin>", line 1
    print ('Command not found')
    ^
IndentationError: unexpected indent
>>>     sys.exit(0)
  File "<stdin>", line 1
    sys.exit(0)
    ^
IndentationError: unexpected indent
>>>
>>> calc_crc(comando)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 3, in calc_crc
  File "/usr/local/lib/python3.5/dist-packages/crcmod/crcmod.py", line 432, in crcfun
    return fun(data, crc, table)
TypeError: Unicode-objects must be encoded before calculating a CRC
>>> print('Command='), comando
Command=
(None, 'QPIGS')
>>> print('CRC='),crc
CRC=
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'crc' is not defined
>>>
>>> crc1=crc[0:4]
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'crc' is not defined
>>> crc2=crc[0:2]+crc[4:6]
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'crc' is not defined
>>>
>>> crc1=int(crc1, base=16)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'crc1' is not defined
>>> crc2=int(crc2, base=16)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'crc2' is not defined
>>>
>>> fd = open('/dev/hidraw0', 'r+')
>>> fd.write(comando+chr(crc1)+chr(crc2)+'\r')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'crc1' is not defined
>>> r = fd.read(nbytes).encode('string-escape')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'nbytes' is not defined
>>>
>>> s = r.split("")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'r' is not defined
>>> print (s)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 's' is not defined
>>>
>>> i = s[0][1:].split(" ")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 's' is not defined
>>> print (i)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'i' is not defined
>>>
>>> fd.close()

CITAZIONE (eliafino, 14/07/2020 18:47:17 )

CITAZIONE (maxsemp, 14/07/2020 17:57:09 )

Anch'io vorrei leggere da hidraw0, ma fino adesso no ci sono riuscito.

Prova con questo codice python2

#!/usr/bin/python

import os, sys
import time

fd = os.open('/dev/hidraw0', os.O_RDWR | os.O_NONBLOCK)
os.write(fd, 'QPIGS\r')
time.sleep(0.2)
r = os.read(fd, 137).encode('string-escape')

while r.find('r') == -1 :
	time.sleep(.1)
	r = r + os.read(fd, 137).encode('string-escape')

s = r.split("")
print s

os.close(fd)
sys.exit(0)

CITAZIONE (maxsemp, 15/07/2020 14:27:16 )

CITAZIONE (eliafino, 14/07/2020 18:47:17 )

CITAZIONE (maxsemp, 14/07/2020 17:57:09 )

Anch'io vorrei leggere da hidraw0, ma fino adesso no ci sono riuscito.

Prova con questo codice python2

#!/usr/bin/python

import os, sys
import time

fd = os.open('/dev/hidraw0', os.O_RDWR | os.O_NONBLOCK)
os.write(fd, 'QPIGS\r')
time.sleep(0.2)
r = os.read(fd, 137).encode('string-escape')

while r.find('r') == -1 :
	time.sleep(.1)
	r = r + os.read(fd, 137).encode('string-escape')

s = r.split("")
print s

os.close(fd)
sys.exit(0)

Non gira, purtroppo.
Lancio il file e la risposta è questa: ['(NAKss\r\x00']

Ciao emuland.
Ho fatto la prova che mi hai suggerito e questa è la risposta:

[code]>>>
>>> import os, sys
>>> fd = os.open("/dev/hidraw0", os.O_RDWR|os.O_NONBLOCK)
>>> os.write(fd, "\x51\x50\x49\x47\x53\xB7\xA9\x0D\r")
9
>>> os.read(fd, 512)
'(232.0 4'
>>>

Ho fatto anche questa prova:

import os, sys
import time

fd = os.open('/dev/hidraw0', os.O_RDWR | os.O_NONBLOCK)
os.write(fd, "\x51\x50\x49\x47\x53\xB7\xA9\x0D\r")
time.sleep(0.2)
r = os.read(fd, 137).encode('string-escape')

while r.find('r') == -1 :
	time.sleep(.1)
	r = r + os.read(fd, 137).encode('string-escape')

s = r.split("/")
print s

os.close(fd)
sys.exit(0)

['(232.9 49.9 229.9 49.9 0275 0201 005 434 54.10 002 100 0052 0006 069.1 53.99 00000 00110110 00 00 00329 110\x81\xa1\r\x00\x00']