pyPLC/listenerNoGui.py

184 lines
5.4 KiB
Python
Raw Normal View History

#!/usr/bin/python3
# The non-GUI variant of the listener
# Functionality:
# - gets the GPS location from a GPS daemon (gpsd on linux)
# - gets the chargers MAC address from the address manager
# - sends the location and the chargers MAC to a server via http request
import time
import pyPlcWorker
from pyPlcModes import *
import sys # for argv
from configmodule import getConfigValue, getConfigValueBool
import urllib.request
import gps # the gpsd interface module
import RPi.GPIO as GPIO # for controlling hardware pins of the raspberry
startTime_ms = round(time.time()*1000)
GPSsession = gps.gps(mode=gps.WATCH_ENABLE)
strGpsPos = "no_pos"
strLoggingUrl = getConfigValue("logging_url")
def cbAddToTrace(s):
currentTime_ms = round(time.time()*1000)
dT_ms = currentTime_ms - startTime_ms
print("[" + str(dT_ms) + "ms] " + s)
def cbShowStatus(s, selection=""):
pass
def testBlockingBeep(patternselection):
if (patternselection==1):
# The "MAC Found" beep
p.ChangeDutyCycle(10)
p.ChangeFrequency(1100)
time.sleep(0.3)
p.ChangeFrequency(1300)
time.sleep(0.3)
p.ChangeFrequency(1500)
time.sleep(0.3)
p.ChangeDutyCycle(0)
if (patternselection==2):
# The short "ok" beep
p.ChangeDutyCycle(10)
p.ChangeFrequency(1600)
time.sleep(0.07)
p.ChangeDutyCycle(0)
if (patternselection==3):
# The "no GPS position" beep
print("no pos beep 4")
p.ChangeDutyCycle(10)
p.ChangeFrequency(1700)
time.sleep(0.04)
p.ChangeDutyCycle(0)
time.sleep(0.04)
p.ChangeDutyCycle(10)
p.ChangeFrequency(1700)
time.sleep(0.04)
p.ChangeDutyCycle(0)
time.sleep(0.04)
p.ChangeDutyCycle(10)
p.ChangeFrequency(1700)
time.sleep(0.04)
p.ChangeDutyCycle(0)
time.sleep(0.04)
p.ChangeDutyCycle(10)
p.ChangeFrequency(1700)
time.sleep(0.04)
p.ChangeDutyCycle(0)
def trySomeHttp():
print("***************trying some http********************")
strChargerMac = "chargerMac=na"
if (worker.addressManager.isEvseMacNew()):
testBlockingBeep(1)
strChargerMac = "chargerMac=" + worker.addressManager.getEvseMacAsStringAndClearUpdateFlag().replace(":", "")
strParams = strChargerMac
strParams = strParams + "&loops="+str(nMainloops)+"&pos="+strGpsPos
print(strParams)
try:
contents = urllib.request.urlopen(strLoggingUrl + "?" + strParams).read()
print(len(strGpsPos))
if (len(strGpsPos)>7):
print("Valid GPS coordinates, and http logging worked")
testBlockingBeep(2)
else:
print("http was ok, but no GPS position")
testBlockingBeep(3)
except Exception as err:
contents = "(no contents received) " + str(err)
print(contents)
def GpsMainfunction():
global strGpsPos
GPSsession.read()
if (gps.MODE_SET & GPSsession.valid):
print('Mode: %s(%d) Time: ' %
(("Invalid", "NO_FIX", "2D", "3D")[GPSsession.fix.mode],
GPSsession.fix.mode), end="")
# print time, if we have it
if gps.TIME_SET & GPSsession.valid:
print(GPSsession.fix.time, end="")
else:
print('n/a', end="")
if ((gps.isfinite(GPSsession.fix.latitude) and
gps.isfinite(GPSsession.fix.longitude))):
print(" Lat %.6f Lon %.6f" %
(GPSsession.fix.latitude, GPSsession.fix.longitude))
strGpsPos = str(GPSsession.fix.latitude)+"_"+str(GPSsession.fix.longitude)
else:
print(" Lat n/a Lon n/a")
strGpsPos = str(0.0)+"_"+str(0.0)
print(strGpsPos)
def mytestfunction():
global soundstate
#testBlockingBeep(2)
#if (soundstate==0):
# p.ChangeDutyCycle(10)
# p.ChangeFrequency(1000)
#if (soundstate==1):
# p.ChangeDutyCycle(10)
# p.ChangeFrequency(1200)
#if (soundstate==2):
# p.ChangeDutyCycle(0)
#soundstate+=1
#if (soundstate>=3):
# soundstate=0
myMode = C_LISTEN_MODE
isSimulationMode=0
if (len(sys.argv) > 1):
if (sys.argv[1] == "S"):
isSimulationMode=1
print("starting in LISTEN_MODE")
print("press Ctrl-C to exit")
worker=pyPlcWorker.pyPlcWorker(cbAddToTrace, cbShowStatus, myMode, isSimulationMode)
nMainloops=0
httpTime_ms = round(time.time()*1000)
testTime_ms = httpTime_ms
#intervalForHttpLogging_ms = 120*1000 # each 2 minutes send the logging data to the server
intervalForHttpLogging_ms = 30*1000 # each half minute send the logging data to the server
soundstate = 0
GPIO.setmode(GPIO.BCM)
GPIO.setup(23, GPIO.OUT)
p=GPIO.PWM(23, 500) # 500 Hz
p.start(0)
p.ChangeDutyCycle(50)
time.sleep(0.1)
p.ChangeDutyCycle(0)
time.sleep(0.1)
p.ChangeDutyCycle(50)
time.sleep(0.1)
p.ChangeDutyCycle(0)
while (1):
time.sleep(.03) # 'do some calculation'
nMainloops+=1
currentTime_ms = round(time.time()*1000)
if ((currentTime_ms-httpTime_ms)>intervalForHttpLogging_ms) or (worker.addressManager.isEvseMacNew()):
trySomeHttp()
httpTime_ms = currentTime_ms
if ((currentTime_ms-testTime_ms)>2000):
mytestfunction()
testTime_ms = currentTime_ms
worker.mainfunction()
GpsMainfunction()
#---------------------------------------------------------------