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main.py
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################################################################################
# OBD-II Emulator Controller
# Python-based controller application for the Freematics OBD-II Emulator
#
import serial
import serial.tools.list_ports
########################################
# OBDEmulator class
#
class OBDEmulator:
baudRate = 38400
portIdString = "10C4:EA60"
def __init__(self, verbose=True):
self.verbose = verbose
########################################
# scanSerialPorts
def scanSerialPorts(self):
#portlist = serial.tools.list_ports
iterator = serial.tools.list_ports.grep(self.portIdString)
devicesFound = 0
for c, (port, desc, hwid) in enumerate(iterator):
devicesFound = devicesFound + 1
portPath = format(port)
if devicesFound == 1:
print("Found OBD-II device {}".format(portPath))
return True, portPath
else:
print("{} OBD-II devices found".format(devicesFound))
return False
########################################
# connectDevice
def connectDevice(self):
i, portPath = self.scanSerialPorts()
if i == True:
print "Connecting"
self.serialPort = serial.Serial(portPath, baudrate=self.baudRate, timeout=1)
########################################
# closeConnection
def closeConnection(self):
self.serialPort.close()
########################################
# sendCommand
def sendCommand(self, command):
self.serialPort.write((command + '\r'))
out = self.serialPort.readline()
print '<<' + out
out = self.serialPort.readline()
print '<<' + out
out = self.serialPort.readline()
print '<<' + out
out = self.serialPort.readline()
print '<<' + out
out = self.serialPort.readline()
print '<<' + out
out = self.serialPort.readline()
print '<<' + out
########################################
# Function: setEngineRPM
# Parameters: rpm (rpm)
# Description: PID=010C
def setEngineRPM(self, rpm):
self.sendCommand("ATSET 010C=" + str(rpm))
########################################
# Function: setVehicleSpeed
# Parameters: speed (km/h)
# Description: PID=010D
def setVehicleSpeed(self, speed):
self.sendCommand("ATSET 010D=" + str(speed))
########################################
# Function: setThrottlePosition
# Parameters: throttle (0 - 100%)
# Description: PID=0111
def setThrottlePosition(self, throttle):
self.sendCommand("ATSET 0111=" + str(throttle))
########################################
# Function: setFuelLevelInput
# Parameters: fuelLevel (0 - 100%)
# Description: PID=012F
def setFuelLevelInput(self, fuelLevel):
self.sendCommand("ATSET 012F=" + str(fuelLevel))
########################################
# Function: setEngineFuelRate
# Parameters: rate (L/h)
# Description: PID=015E
def setEngineFuelRate(self, rate):
self.sendCommand("ATSET 015E=" + str(rate))
def getEngineFuelRate(self):
self.sendCommand("ATGET 015E")
out = self.serialPort.readline()
print "<<<<< " + str(out)
out = self.serialPort.readline()
print "<<<<< " + str(out)
out = self.serialPort.readline()
print "<<<<< " + str(out)
out = self.serialPort.readline()
print "<<<<< " + str(out)
out = self.serialPort.readline()
print "<<<<< " + str(out)
out = self.serialPort.readline()
print "<<<<< " + str(out)
out = self.serialPort.readline()
print "<<<<< " + str(out)
out = self.serialPort.readline()
print "<<<<< " + str(out)
out = self.serialPort.readline()
print "<<<<< " + str(out)
########################################
# Function: setMAFAirFlowRate
# Parameters: rate (g/s)
# Description: PID=0110
def setMAFAirFlowRate(self, rate):
self.sendCommand("ATSET 0110=" + str(rate))
########################################
# Function: setCalculatedEngineLoad
# Parameters: rate (%)
# Description: PID=0104
def setCalculatedEngineLoad(self, load):
self.sendCommand("ATSET 0104=" + str(load))
########################################
# Function: main
# Description: Main function.
def main():
obd = OBDEmulator()
print 'OBD-II Emulator Controller'
obd.connectDevice()
#obd.sendCmd("ATZ")
obd.sendCommand("ATVIN0")
obd.setEngineRPM(1600)
obd.setVehicleSpeed(50)
obd.setThrottlePosition(19)
obd.setFuelLevelInput(66)
obd.setEngineFuelRate(111)
obd.getEngineFuelRate()
obd.setMAFAirFlowRate(99)
obd.setCalculatedEngineLoad(48)
#obd.sendCommand("ATSET 010C=1800")
if __name__ == "__main__":
main()