mirror of
https://github.com/uhi22/pyPLC.git
synced 2024-11-10 01:05:42 +00:00
feature: added ini file. Prepared GPIO for beaglebone.
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parent
68a4a6ef85
commit
658beda580
6 changed files with 142 additions and 26 deletions
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@ -85,7 +85,8 @@ class addressManager():
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# 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
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# 3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
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# print("This is a heading")
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if (line.find(": eth")>0):
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sFind = ": " + getConfigValue("eth_interface") # e.g. "eth0"
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if (line.find(sFind)>0):
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# print("This is the heading for the ethernet.")
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blInTheEthernetChapter = 1 # we are in the ethernet chapter
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else:
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22
configmodule.py
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22
configmodule.py
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@ -0,0 +1,22 @@
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# See https://docs.python.org/3/library/configparser.html
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import configparser
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config = configparser.ConfigParser()
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config.read('pyPlc.ini')
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def getConfigValue(s):
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return config['general'][s]
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def getConfigValueBool(s):
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return config.getboolean('general', s)
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if __name__ == "__main__":
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print("Testing configmodule...")
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print(str(config.sections()))
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print(config['general']['mode'])
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for key in config['general']:
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print(key + " has value " + config['general'][key])
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print(config.getboolean('general', 'display_via_serial'))
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14
fsmPev.py
14
fsmPev.py
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@ -10,8 +10,8 @@ from datetime import datetime
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from helpers import prettyHexMessage, compactHexMessage, combineValueAndMultiplier
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from exiConnector import * # for EXI data handling/converting
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import json
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from configmodule import getConfigValue, getConfigValueBool
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PARAM_U_DELTA_MAX_FOR_END_OF_PRECHARGE = 10 # volts between inlet and accu, to change from PreCharge to PowerDelivery
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stateNotYetInitialized = 0
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stateConnecting = 1
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@ -393,7 +393,7 @@ class fsmPev():
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except:
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self.addToTrace("ERROR: Could not decode the PreChargeResponse")
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self.addToTrace("PreChargeResponse received.")
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if (self.USE_EVSEPRESENTVOLTAGE_FOR_PRECHARGE_END):
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if (getConfigValueBool("use_evsepresentvoltage_for_precharge_end")):
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# We want to use the EVSEPresentVoltage, which was reported by the charger, as end-criteria for the precharging.
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s = "EVSEPresentVoltage " + str(u) + "V, "
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else:
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@ -402,7 +402,7 @@ class fsmPev():
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s = "U_Inlet " + str(u) + "V, "
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s= s + "U_Accu " + str(self.hardwareInterface.getAccuVoltage()) + "V"
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self.addToTrace(s)
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if (abs(u-self.hardwareInterface.getAccuVoltage()) < PARAM_U_DELTA_MAX_FOR_END_OF_PRECHARGE):
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if (abs(u-self.hardwareInterface.getAccuVoltage()) < float(getConfigValue("u_delta_max_for_end_of_precharge"))):
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self.addToTrace("Difference between accu voltage and inlet voltage is small. Sending PowerDeliveryReq.")
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self.publishStatus("PreCharge done")
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if (self.isLightBulbDemo):
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@ -471,7 +471,7 @@ class fsmPev():
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self.callbackShowStatus(format(u,".1f"), "EVSEPresentVoltage")
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except:
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self.addToTrace("ERROR: Could not decode the PreChargeResponse")
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if (self.USE_PHYSICAL_INLET_VOLTAGE_DURING_CHARGELOOP):
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if (getConfigValueBool("use_physical_inlet_voltage_during_chargeloop")):
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# Instead of using the voltage which is reported by the charger, use the physically measured.
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u = self.hardwareInterface.getInletVoltage()
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# as long as the accu is not full and no stop-demand from the user, we continue charging
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@ -606,14 +606,10 @@ class fsmPev():
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self.cyclesInState = 0
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self.DelayCycles = 0
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self.rxData = []
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self.isLightBulbDemo = True
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self.isLightBulbDemo = getConfigValueBool("light_bulb_demo")
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self.isBulbOn = False
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self.cyclesLightBulbDelay = 0
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self.isUserStopRequest = False
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self.USE_EVSEPRESENTVOLTAGE_FOR_PRECHARGE_END = 1 # to configure, which criteria is used for end of PreCharge
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self.USE_PHYSICAL_INLET_VOLTAGE_DURING_CHARGELOOP = 0 # to configure, whether to display the measured or charger-reported
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# voltage during the charging loop
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# we do NOT call the reInit, because we want to wait with the connection until external trigger comes
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def __del__(self):
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@ -9,8 +9,23 @@
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import serial # the pyserial
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from serial.tools.list_ports import comports
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from time import sleep
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from configmodule import getConfigValue, getConfigValueBool
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if (getConfigValue("digital_output_device")=="beaglebone"):
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# In case we run on beaglebone, we want to use GPIO ports.
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import Adafruit_BBIO.GPIO as GPIO
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class hardwareInterface():
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def needsSerial(self):
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# Find out, whether we need a serial port. This depends on several configuration items.
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if (getConfigValueBool("display_via_serial")):
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return True # a display is expected to be connected to serial port.
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if (getConfigValue("digital_output_device")=="dieter"):
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return True # a "dieter" output device is expected to be connected on serial port.
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if (getConfigValue("analog_input_device")=="dieter"):
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return True # a "dieter" input device is expected to be connected on serial port.
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return False # non of the functionalities need a serial port.
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def findSerialPort(self):
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ports = []
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self.addToTrace('Available serial ports:')
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@ -21,36 +36,49 @@ class hardwareInterface():
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self.addToTrace('{:2}: {:20} {!r}'.format(n, port, desc))
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ports.append(port)
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if (len(ports)<1):
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if (self.needsSerial()):
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self.addToTrace("ERROR: No serial ports found. No hardware interaction possible.")
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self.ser = None
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self.isInterfaceOk = False
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self.isSerialInterfaceOk = False
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else:
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self.addToTrace("We found no serial port, but also do not need it. No problem.")
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self.ser = None
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self.isSerialInterfaceOk = False
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else:
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self.addToTrace("ok, we take the first port, " + ports[0])
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try:
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self.ser = serial.Serial(ports[0], 19200, timeout=0)
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self.isInterfaceOk = True
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self.isSerialInterfaceOk = True
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except:
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self.addToTrace("ERROR: Could not open serial port.")
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self.ser = None
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self.isInterfaceOk = False
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self.isSerialInterfaceOk = False
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def addToTrace(self, s):
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self.callbackAddToTrace("[HARDWAREINTERFACE] " + s)
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def setStateB(self):
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self.addToTrace("Setting CP line into state B.")
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if (getConfigValue("digital_output_device")=="beaglebone"):
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GPIO.output("P8_18", GPIO.LOW)
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self.outvalue &= ~1
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def setStateC(self):
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self.addToTrace("Setting CP line into state C.")
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if (getConfigValue("digital_output_device")=="beaglebone"):
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GPIO.output("P8_18", GPIO.HIGH)
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self.outvalue |= 1
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def setPowerRelayOn(self):
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self.addToTrace("Switching PowerRelay ON.")
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if (getConfigValue("digital_output_device")=="beaglebone"):
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GPIO.output("P8_16", GPIO.HIGH)
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self.outvalue |= 2
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def setPowerRelayOff(self):
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self.addToTrace("Switching PowerRelay OFF.")
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if (getConfigValue("digital_output_device")=="beaglebone"):
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GPIO.output("P8_16", GPIO.LOW)
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self.outvalue &= ~2
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def setRelay2On(self):
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@ -91,6 +119,11 @@ class hardwareInterface():
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self.callbackShowStatus(format(self.simulatedSoc,".1f"), "soc")
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return self.simulatedSoc
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def initPorts(self):
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if (getConfigValue("digital_output_device") == "beaglebone"):
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# Port configuration according to https://github.com/jsphuebner/pyPLC/commit/475f7fe9f3a67da3d4bd9e6e16dfb668d0ddb1d6
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GPIO.setup("P8_16", GPIO.OUT) #output for port relays
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GPIO.setup("P8_18", GPIO.OUT) #output for CP
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def __init__(self, callbackAddToTrace=None, callbackShowStatus=None):
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self.callbackAddToTrace = callbackAddToTrace
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@ -101,6 +134,8 @@ class hardwareInterface():
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self.inletVoltage = 0.0 # volts
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self.rxbuffer = ""
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self.findSerialPort()
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self.initPorts()
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def resetSimulation(self):
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self.simulatedInletVoltage = 0.0 # volts
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@ -111,7 +146,7 @@ class hardwareInterface():
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self.simulatedInletVoltage = self.simulatedInletVoltage + 1.0 # simulate increasing voltage during PreCharge
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def close(self):
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if (self.isInterfaceOk):
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if (self.isSerialInterfaceOk):
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self.ser.close()
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def evaluateReceivedData(self, s):
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@ -122,7 +157,7 @@ class hardwareInterface():
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if (len(s)==4):
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try:
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self.inletVoltage = int(s) / 1024.0 * 1.08 * (6250) / (4.7+4.7)
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if (getConfigValue("analog_input_device")=="dieter"):
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self.callbackShowStatus(format(self.inletVoltage,".1f"), "uInlet")
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except:
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# keep last known value, if nothing new valid was received.
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@ -132,10 +167,12 @@ class hardwareInterface():
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def showOnDisplay(self, s1, s2, s3):
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# show the given string s on the display which is connected to the serial port
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if (getConfigValueBool("display_via_serial") and self.isSerialInterfaceOk):
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s = "lc" + s1 + "\n" + "lc" + s2 + "\n" + "lc" + s3 + "\n"
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self.ser.write(bytes(s, "utf-8"))
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def mainfunction(self):
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if (getConfigValueBool("soc_simulation")):
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if (self.simulatedSoc<100):
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if ((self.outvalue & 2)!=0):
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# while the relay is closed, simulate increasing SOC
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@ -143,7 +180,7 @@ class hardwareInterface():
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self.loopcounter+=1
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if (self.isInterfaceOk):
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if (self.isSerialInterfaceOk):
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if (self.loopcounter>15):
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self.loopcounter=0
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# self.ser.write(b'hello world\n')
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55
pyPlc.ini
Normal file
55
pyPlc.ini
Normal file
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@ -0,0 +1,55 @@
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[general]
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# mode can be either PevMode to use as car, or EvseMode to use as charger
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mode = PevMode
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# Simulation without modem
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# For development purposes, make it possible to run two instances (pev and evse) on one machine, without
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# a modem connected. This feature is not tested since a long time, most likely does not work as intended.
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# todo: replace isSimulationMode by this setting
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is_simulation_without_modems = false
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# The Ethernet interface. Usually eth0 on Raspberry.
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# Todo: This setting is considered only on linux. Find a clean solution for windows is to be done.
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eth_interface = eth0
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# If a display is connected via serial line, e.g. an WIFI-KIT-32 running the software from https://github.com/uhi22/SerialToOLED
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display_via_serial = yes
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# LightBulbDemo turns on the relay with a short delay in the charging loop, to stabilize the voltage
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# before the resistive load is connected.
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light_bulb_demo = yes
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# SOC simulation.
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# In PevMode, simulate a rising SOC while charging.
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soc_simulation = yes
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# Device selection for the digital outputs, for CP state and power relays
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# Possible options:
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# dieter: Serial controlled device, which controls the digital outputs. E.g. arduino from https://github.com/uhi22/dieter
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# beaglebone: GPIO pins of the beagleBone, as used in https://github.com/jsphuebner/pyPLC/tree/beaglebone
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digital_output_device = dieter
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#digital_output_device = beaglebone
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# Device to read the physically measured inlet voltage in PevMode
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# Either the high-voltage dieter from https://github.com/uhi22/dieter, which is connected on serial port.
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# Or "none", if no measurement is intended.
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#analog_input_device = dieter
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analog_input_device = none
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# Criteria for ending the PreCharge phase in PevMode
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# Possible options:
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# yes: use the EVSEPresentVoltage which is reported by the charger, to decide the end of the precharge
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# no: use the physically measured inlet voltage to decide the end of the precharge
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use_evsepresentvoltage_for_precharge_end = yes
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# Use the physically measured inlet voltage to show on display during the charge loop.
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# If false, we are showing the EVSEPresentVoltage which is reported by the charger.
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use_physical_inlet_voltage_during_chargeloop = no
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# Voltage threshold for the end-of-precharge decision
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# This is the maximum difference voltage between the charger voltage and the accu voltage. If the actual voltage
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# difference is lower than this threshold, we will close the power relay, to connect the accu to the charger.
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# Unit: volt
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u_delta_max_for_end_of_precharge = 10
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5
pyPlc.py
5
pyPlc.py
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@ -11,6 +11,7 @@ import time
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import pyPlcWorker
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from pyPlcModes import *
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import sys # for argv
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from configmodule import getConfigValue, getConfigValueBool
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startTime_ms = round(time.time()*1000)
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@ -60,6 +61,10 @@ def cbShowStatus(s, selection=""):
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root.update()
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myMode = C_LISTEN_MODE
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if (getConfigValue("mode")=="PevMode"):
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myMode = C_PEV_MODE
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if (getConfigValue("mode")=="EvseMode"):
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myMode = C_EVSE_MODE
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if (len(sys.argv) > 1):
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if (sys.argv[1] == "P"):
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myMode = C_PEV_MODE
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