#!/usr/bin/env python import array import serial import time stream = 0 datacount = 0 readcount = 0 got = 0 gotinv = 0 inv = '' outinv = '' gotbmk = 0 bmk = '' outbmk = '' readbuffer = array.array('c') try: ser = serial.Serial(port='/dev/ttyUSB0', baudrate=19200, timeout=None, interCharTimeout=0) except: # print('failed.') exit() ser.isOpen() ser.flushInput() while ((gotinv==0) or (gotbmk==0)): start = time.time() try: c = ser.read(1) except: exit() end = time.time() elapsed = end - start if (elapsed>0.02): if (datacount==44): # print "Inverter" inv=readbuffer gotinv=1 if (datacount==62): # print "BMK" bmk=readbuffer gotbmk=1 got=1 readbuffer=[] datacount=0 stream=1 if (stream==1): readbuffer.append(c) datacount = datacount+1 # print('[{0:d}] {1} {2}'.format(datacount, ord(c), elapsed)) readcount=readcount+1 if (gotbmk==1): # BMK volts = (((ord(bmk[46])*256)+ord(bmk[47]))&0xFFFF)/100.0 amps = ((ord(bmk[48])*256)+ord(bmk[49]))&0xFFFF if (amps>32768): amps=-(65536-amps) amps = float(amps/10.0) ampH = ((ord(bmk[54])*256)+ord(bmk[55]))&0xFFFF if (ampH>32768): ampH=-(65536-ampH) # if (volts<40.0 or volts>70.0): gotbmk=0 # if (abs(amps)>100.0): gotbmk=0 # if (abs(ampH)>400.0): gotbmk=0 outbmk = "BMK,"+str(ord(bmk[45]))+","+str(amps)+","+str(volts)+","+str(ampH)+"," if (gotinv==1): # INV outinv="INV"+","+str(ord(inv[0]))+","+str(ord(inv[1]))+","+str((((ord(inv[2])*256)+ord(inv[3]))&0xFFFF)/10.0)+","+str(((ord(inv[4])*256)+ord(inv[5]))&0xFFFF)+","+str(ord(inv[6]))+","+str(ord(inv[7]))+","+str(ord(inv[8]))+","+str(ord(inv[9]))+","+str(ord(inv[10])/10.0)+","+str(ord(inv[11])*1.8+32.0)+","+str(ord(inv[12])*1.8+32.0)+","+str(ord(inv[13])*1.8+32.0)+","+str(ord(inv[14]))+","+str(ord(inv[15]))+","+str(ord(inv[16]))+","+str(ord(inv[17]))+","+str((((ord(inv[18])*256)+ord(inv[19]))&0xFFFF)/10.0)+","+str(ord(inv[20]))+"," print "Content-type: text/html\n\n" if (gotbmk==1):print outbmk if (gotinv==1):print outinv print ""