def setupMoveService():
"""Initialize the DriveMotors service
Establish a connection with the Phidget HC Motor Control and
then with the ROS Master as the service DriveMotors
"""
global motorControl, minAcceleration, maxAcceleration
try:
motorControl = MotorControl()
except:
rospy.logerr("Unable to connect to Phidget HC Motor Control")
return
try:
motorControl.setOnAttachHandler(mcAttached)
motorControl.setOnDetachHandler(mcDetached)
motorControl.setOnErrorhandler(mcError)
motorControl.setOnCurrentChangeHandler(mcCurrentChanged)
motorControl.setOnInputChangeHandler(mcInputChanged)
motorControl.setOnVelocityChangeHandler(mcVelocityChanged)
except:
rospy.logerr("Unable to register the handlers")
return
try:
motorControl.openPhidget()
except PhidgetException as e:
rospy.logerr("Fail to openPhidget() %i: %s", e.code, e.details)
return
try:
motorControl.waitForAttach(10000)
except PhidgetException as e:
rospy.logerr("Fail to attach to Phidget %i: %s", e.code, e.details)
return
if motorControl.isAttached():
rospy.loginfo("Device: %s, Serial: %d, Version: %d",
motorControl.getDeviceName(),
motorControl.getSerialNum(),
motorControl.getDeviceVersion())
minAcceleration = motorControl.getAccelerationMin(leftWheels)
maxAcceleration = motorControl.getAccelerationMax(leftWheels)
rospy.init_node('DriveMotors', log_level=rospy.DEBUG)
phidgetMotorService = rospy.Service('DriveMotors', Move, move)
rospy.spin()
class PhidgetMotorController:
def __init__(
self,
leftMotorId,
rightMotorId,
leftSignAdjust,
rightSignAdjust
):
self.leftWheels = leftMotorId
self.rightWheels = rightMotorId
self.defaultMotorSpeed = 100.0
self.motorMaxSpeed = 100
self.motorMinSpeed = 0
self.leftSignAdjust = leftSignAdjust
self.rightSignAdjust = rightSignAdjust
self.whichMotorFirst = self.rightWheels
self.motorControl = MotorControl()
self.motorControl.setOnAttachHandler(self.mcAttached)
self.motorControl.setOnDetachHandler(self.mcDetached)
self.motorControl.setOnErrorhandler(self.mcError)
self.motorControl.setOnCurrentChangeHandler(self.mcCurrentChanged)
self.motorControl.setOnInputChangeHandler(self.mcInputChanged)
self.motorControl.setOnVelocityChangeHandler(self.mcVelocityChanged)
try:
self.motorControl.openPhidget()
except PhidgetException, e:
print "openPhidget() failed"
print "code: %d" % e.code
print "message", e.message
raise
try:
self.motorControl.waitForAttach(10000)
except PhidgetException, e:
print "waitForAttach() failed"
print "code: %d" % e.code
print "message", e.message
raise
print("Motor Control %i: Motor %i Current Draw: %f" % (source.getSerialNum(), e.index, e.current))
def motorControlInputChanged(e):
source = e.device
print("Motor Control %i: Input %i State: %s" % (source.getSerialNum(), e.index, e.state))
def motorControlVelocityChanged(e):
source = e.device
print("Motor Control %i: Motor %i Current Velocity: %f" % (source.getSerialNum(), e.index, e.velocity))
#Main Program Code
try:
#logging example, uncomment to generate a log file
#motorControl.enableLogging(PhidgetLogLevel.PHIDGET_LOG_VERBOSE, "phidgetlog.log")
motorControl.setOnAttachHandler(motorControlAttached)
motorControl.setOnDetachHandler(motorControlDetached)
motorControl.setOnErrorhandler(motorControlError)
motorControl.setOnCurrentChangeHandler(motorControlCurrentChanged)
motorControl.setOnInputChangeHandler(motorControlInputChanged)
motorControl.setOnVelocityChangeHandler(motorControlVelocityChanged)
except PhidgetException as e:
print("Phidget Exception %i: %s" % (e.code, e.details))
print("Exiting....")
exit(1)
print("Opening phidget object....")
try:
motorControl.openPhidget()
except PhidgetException as e:
def setupMoveService():
"""Initialize the PhidgetMotor service
Establish a connection with the Phidget HC Motor Control and
then with the ROS Master as the service PhidgetMotor
"""
node_name = 'PhidgetMotor'
rospy.init_node(node_name, log_level=rospy.DEBUG)
serial_no = rospy.get_param("~serial_no", 0)
if not serial_no == 0:
rospy.loginfo("Using motor controller with serial number %d",
serial_no)
else:
rospy.loginfo(
"No serial number specified. This is fine for systems with one controller, but may behave unpredictably for systems with multiple motor controllers"
)
global motorControl, motorControlRight, minAcceleration, maxAcceleration, timer, motors_inverted, phidget1065, rightWheels, posdataPub
timer = 0
try:
motorControl = MotorControl()
except:
rospy.logerr("Unable to connect to Phidget HC Motor Control")
return
try:
motorControl.setOnAttachHandler(mcAttached)
motorControl.setOnDetachHandler(mcDetached)
motorControl.setOnErrorhandler(mcError)
motorControl.setOnCurrentChangeHandler(mcCurrentChanged)
motorControl.setOnInputChangeHandler(mcInputChanged)
motorControl.setOnVelocityChangeHandler(mcVelocityChanged)
if serial_no != 0:
motorControl.openPhidget(serial_no)
else:
motorControl.openPhidget()
#attach the board
motorControl.waitForAttach(10000)
"""use the function getMotorCount() to know how many motors the Phidget board can take
if the result is more than 1, we have a 1064 board and we take care of both motors with one motorControl variable. The corobot_phidgetIK handles the Phidget encoder board that is
separated of the phidget 1064.
if the result is equal to 1, we have two phidget 1065 boards. The one with serial number that is the lowest will be the left will, the other the right weel. The encoder has to be handled
in this file as it is part of the 1065 board.
"""
if motorControl.getMotorCount() == 1:
phidget1065 = True
rightWheels = 0
motorControlRight.setOnAttachHandler(mcAttached)
motorControlRight.setOnDetachHandler(mcDetached)
motorControlRight.setOnErrorhandler(mcError)
motorControlRight.setOnCurrentChangeHandler(mcCurrentChanged)
motorControlRight.setOnInputChangeHandler(mcInputChanged)
motorControlRight.setOnVelocityChangeHandler(mcVelocityChanged)
if motorControl.getSerialNum() > motorControlRight.getSerialNum():
""" As a rule, we need the serial number of the left board to be lower than for the right board. This is for consistancy for all the robots
"""
motorControlTemp = motorControl
motorControl = motorControlRight
motorControlRight = motorControlTemp
#Set up the encoders handler
motorControl.setOnPositionUpdateHandler(leftEncoderUpdated)
motorControlRight.setOnPositionUpdateHandler(rightEncoderUpdated)
#attach the board
motorControlRight.waitForAttach(10000)
except PhidgetException as e:
rospy.logerr("Unable to register the handlers: %i: %s", e.code,
e.details)
return
except AttributeError as e:
rospy.logerr("Unable to register the handlers: %s", e)
return
except:
rospy.logerr("Unable to register the handlers: %s", sys.exc_info()[0])
return
if motorControl.isAttached():
rospy.loginfo("Device: %s, Serial: %d, Version: %d",
motorControl.getDeviceName(),
motorControl.getSerialNum(),
motorControl.getDeviceVersion())
if phidget1065 == True:
if motorControlRight.isAttached():
rospy.loginfo("Device: %s, Serial: %d, Version: %d",
motorControlRight.getDeviceName(),
motorControlRight.getSerialNum(),
motorControlRight.getDeviceVersion())
minAcceleration = motorControl.getAccelerationMin(leftWheels)
maxAcceleration = motorControl.getAccelerationMax(leftWheels)
motors_inverted = rospy.get_param('~motors_inverted', False)
phidgetMotorTopic = rospy.Subscriber(node_name, MotorCommand, move)
phidgetMotorService = rospy.Service(node_name, Move, move)
if phidget1065 == True:
posdataPub = rospy.Publisher("position_data", PosMsg)
rospy.spin()
class IOTools:
def __init__(self, onRobot):
self.onRobot = onRobot
# Camera
self._openCam=False
# Motor Control
self._snMot=-1
self._openMot=False
self._attachedMot=False
self._cur = [0, 0]
# Servo
self._snSer=-1
self._openSer=False
self._attachedSer=False
self._limits = [0, 0]
# IF Kit
self._snIF=-1
self._openIF=False
self._attachedIF=False
self._inp = [0, 0, 0, 0, 0, 0, 0, 0]
self._sen = [0, 0, 0, 0, 0, 0, 0, 0]
# LEDs
self._fistTime = True
self._status = [0,0,0]
self._mod = [8, 1, 1]
self._rep = [-1, 5, 6]
self._val = [True, False, False]
self._ofs = [0, 0, 0]
self._updaterThread = threading.Thread(target=self.__updateLED)
self._stop = False
self._updaterThread.setDaemon(True)
self._updaterThread.start()
def destroy(self):
# LEDs
self._stop = True
if self._attachedIF:
self._interfaceKit.setOutputState(0, 0)
self._interfaceKit.setOutputState(1, 0)
self._interfaceKit.setOutputState(2, 0)
# Servo
self.servoDisengage()
# Camera
self._openCam = False
if self._openCam:
self._cap.release()
def open(self):
self.__openIF()
self.__openMot()
self.__openSer()
self.__openCam()
###################### Camera ######################
def __openCam(self):
if not os.path.exists('/dev/video0'):
return False
self._cap = cv2.VideoCapture()
if not self._cap.open(-1):
return False
self._openCam = True
def cameraGrab(self):
if self._openCam:
return self._cap.grab()
else:
return False
def cameraRead(self):
if self._openCam:
(ret, img)=self._cap.retrieve()
return img
else:
return False
def cameraSetResolution(self, sz):
"""
:rtype : object
"""
if self._openCam:
sz=sz.lower()
if sz=='low':
self._cap.set(3,160)
self._cap.set(4,120)
if sz=='medium':
self._cap.set(3,640)
self._cap.set(4,480)
if sz=='high':
self._cap.set(3,800)
self._cap.set(4,600)
if sz=='full':
self._cap.set(3,1280)
self._cap.set(4,720)
def imshow(self, wnd, img):
if not self.onRobot:
if img.__class__ != numpy.ndarray:
print "imshow - invalid image"
return False
else:
cv2.imshow(wnd,img)
cv2.waitKey(5)
####################### Servo ######################
def __openSer(self):
try:
self._advancedServo = AdvancedServo()
except RuntimeError as e:
print("Servo - Runtime Exception: %s" % e.details)
return False
try:
self._advancedServo.setOnAttachHandler(self.__onAttachedSer)
self._advancedServo.setOnDetachHandler(self.__onDetachedSer)
self._advancedServo.setOnErrorhandler(self.__onErrorSer)
except PhidgetException as e:
print("Servo - Phidget Exception %i: %s" % (e.code, e.details))
return False
try:
self._advancedServo.openPhidget()
except PhidgetException as e:
print("Servo - Phidget Exception %i: %s" % (e.code, e.details))
return False
self._openSer=True
return True
def __onAttachedSer(self,e):
self._snSer = e.device.getSerialNum()
self._advancedServo.setServoType(0, ServoTypes.PHIDGET_SERVO_HITEC_HS322HD)
self._advancedServo.setAcceleration(0, self._advancedServo.getAccelerationMax(0))
self._advancedServo.setVelocityLimit(0, self._advancedServo.getVelocityMax(0))
self._limits[0] = self._advancedServo.getPositionMin(0)
self._limits[1] = self._advancedServo.getPositionMax(0)
print("Servo %i Attached! Range: %f - %f" % (self._snSer, self._limits[0], self._limits[1]))
self._attachedSer=True
def __onDetachedSer(self,e ):
print("Servo %i Detached!" % (self._snSer))
self._snSer = -1
self._attachedSer=False
def __onErrorSer(self, e):
try:
source = e.device
print("Servo %i: Phidget Error %i: %s" % (source.getSerialNum(), e.eCode, e.description))
except PhidgetException as e:
print("Servo - Phidget Exception %i: %s" % (e.code, e.details))
def __closeSer(self):
if self._openSer==True:
self.servoDisengage()
self._advancedServo.closePhidget()
def servoEngage(self):
if self._attachedSer==True:
self._advancedServo.setEngaged(0, True)
def servoDisengage(self):
if self._attachedSer==True:
self._advancedServo.setEngaged(0, False)
def servoSet(self, pos):
if self._attachedSer==True:
self._advancedServo.setPosition(0, min(max(pos,self._limits[0]),self._limits[1]))
############### Motor Control ######################
def __openMot(self):
try:
self._motorControl = MotorControl()
except RuntimeError as e:
print("Motor Control - Runtime Exception: %s" % e.details)
return False
try:
self._motorControl.setOnAttachHandler(self.__onAttachedMot)
self._motorControl.setOnDetachHandler(self.__onDetachedMot)
self._motorControl.setOnErrorhandler(self.__onErrorMot)
self._motorControl.setOnCurrentChangeHandler(self.__onCurrentChangedMot)
except PhidgetException as e:
print("Motor Control - Phidget Exception %i: %s" % (e.code, e.details))
return False
try:
self._motorControl.openPhidget()
except PhidgetException as e:
print("Motor Control - Phidget Exception %i: %s" % (e.code, e.details))
return False
self._openMot=True
return True
def __onAttachedMot(self,e):
self._snMot = e.device.getSerialNum()
print("Motor Control %i Attached!" % (self._snMot))
self._attachedMot=True
def __onDetachedMot(self,e ):
print("Motor Control %i Detached!" % (self._snMot))
self._snMot = -1
self._attachedMot=False
def __onErrorMot(self, e):
try:
source = e.device
print("Motor Control %i: Phidget Error %i: %s" % (source.getSerialNum(), e.eCode, e.description))
except PhidgetException as e:
print("Motor Control - Phidget Exception %i: %s" % (e.code, e.details))
def __onCurrentChangedMot(self, e):
self._cur[e.index] = e.current
def __closeMot(self):
if self._openMot==True:
self._motorControl.closePhidget()
def setMotors(self, speed1=0.0, speed2=0.0, acceleration1=100.0, acceleration2=100.0 ):
if self._openMot==True:
self._motorControl.setAcceleration(0, acceleration1)
self._motorControl.setVelocity(0, speed1)
self._motorControl.setAcceleration(1, acceleration2)
self._motorControl.setVelocity(1, speed2)
############### Interface Kit ######################
def __closeIF(self):
if self._openIF==True:
self._interfaceKit.closePhidget()
def __openIF(self):
try:
self._interfaceKit = InterfaceKit()
except RuntimeError as e:
print("IF Kit - Runtime Exception: %s" % e.details)
return False
try:
self._interfaceKit.setOnAttachHandler(self.__onAttachedIF)
self._interfaceKit.setOnDetachHandler(self.__onDetachedIF)
self._interfaceKit.setOnErrorhandler(self.__onErrorIF)
self._interfaceKit.setOnInputChangeHandler(self.__onInputChangedIF)
self._interfaceKit.setOnSensorChangeHandler(self.__onSensorChangedIF)
except PhidgetException as e:
print("IF Kit - Phidget Exception %i: %s" % (e.code, e.details))
return False
try:
self._interfaceKit.openPhidget()
except PhidgetException as e:
print("IF Kit - Phidget Exception %i: %s" % (e.code, e.details))
return False
self._openIF=True
return True
def __onAttachedIF(self,e):
self._snIF = e.device.getSerialNum()
print("InterfaceKit %i Attached!" % (self._snIF))
self._attachedIF=True
if self._fistTime:
for i in range(0,3):
self._interfaceKit.setOutputState(0, 1)
self._interfaceKit.setOutputState(1, 1)
self._interfaceKit.setOutputState(2, 1)
time.sleep(0.1)
self._interfaceKit.setOutputState(0, 0)
self._interfaceKit.setOutputState(1, 0)
self._interfaceKit.setOutputState(2, 0)
time.sleep(0.1)
self._fistTime = False
def __onDetachedIF(self,e ):
print("InterfaceKit %i Detached!" % (self._snIF))
self._snIF = -1
self._inp = [0, 0, 0, 0, 0, 0, 0, 0]
self._sen = [0, 0, 0, 0, 0, 0, 0, 0]
self._attachedIF=False
def __onErrorIF(self, e):
try:
source = e.device
print("InterfaceKit %i: Phidget Error %i: %s" % (source.getSerialNum(), e.eCode, e.description))
except PhidgetException as e:
print("IF Kit - Phidget Exception %i: %s" % (e.code, e.details))
def __onSensorChangedIF(self, e):
self._sen[e.index] = e.value
def __onInputChangedIF(self, e):
self._inp[e.index] = e.state
def getSensors(self):
"""
:rtype : object
"""
return self._sen;
def getInputs(self):
return self._inp;
################ LEDs #######################
def __updateLED(self):
t=0
while self._stop==False:
t=(t+1)%100
for i in range(0,3):
self._status[i]=((t+self._ofs[i])%self._mod[i]==0) and self._val[i] and bool(self._rep[i])
self._rep[i]=self._rep[i]-int(self._rep[i]>0 and self._status[i])
if self._attachedIF:
self._interfaceKit.setOutputState(i, self._status[i])
time.sleep(0.15)
def __setModeLED(self, i, mode, hz=2, cnt=1, ofs=0):
if mode=='on':
self._rep[i]=-1
self._val[i]=True
self._ofs[i]=0
self._mod[i]=1
if mode=='off':
self._rep[i]=-1
self._val[i]=False
self._ofs[i]=0
self._mod[i]=1
if mode=='flash':
hz=min(max(hz,1),100)
self._rep[i]=min(max(cnt,1),20)
self._val[i]=True
self._ofs[i]=min(max(ofs,0),hz)
self._mod[i]=hz
def setStatus(self, mode, hz=2, cnt=1, ofs=0):
self.__setModeLED(1,mode, hz, cnt, ofs)
def setError(self, mode, hz=2, cnt=1, ofs=0):
self.__setModeLED(2,mode, hz, cnt, ofs)
def setSemaphor(self):
self.__setModeLED(1,'flash', 2, 6, 0)
self.__setModeLED(2,'flash', 2, 6, 1)
def motorControlInputChanged(e):
source = e.device
print("Motor Control %i: Input %i State: %s" %
(source.getSerialNum(), e.index, e.state))
def motorControlVelocityChanged(e):
source = e.device
print("Motor Control %i: Motor %i Current Velocity: %f" %
(source.getSerialNum(), e.index, e.velocity))
#Main Program Code
try:
motorControl.setOnAttachHandler(motorControlAttached)
motorControl.setOnDetachHandler(motorControlDetached)
motorControl.setOnErrorhandler(motorControlError)
motorControl.setOnCurrentChangeHandler(motorControlCurrentChanged)
motorControl.setOnInputChangeHandler(motorControlInputChanged)
motorControl.setOnVelocityChangeHandler(motorControlVelocityChanged)
except PhidgetException as e:
print("Phidget Exception %i: %s" % (e.code, e.details))
print("Exiting....")
exit(1)
print("Opening phidget object....")
try:
motorControl.openPhidget()
except PhidgetException as e:
def setupMoveService():
"""Initialize the PhidgetLinear service
Establish a connection with the Phidget 1065 Motor Control and
then with the ROS Master as the service PhidgetLinear
"""
rospy.init_node('PhidgetLinear', log_level=rospy.DEBUG)
serial_no = rospy.get_param("~serial_no", 0)
if not serial_no == 0:
rospy.loginfo("Using motor controller with serial number %d",
serial_no)
else:
rospy.loginfo(
"No serial number specified. This is fine for systems with one controller, but may behave unpredictably for systems with multiple motor controllers"
)
global motorControl, minAcceleration, maxAcceleration, timer, invert_speed, posdataPub
timer = 0
try:
motorControl = MotorControl()
except:
rospy.logerr("Unable to connect to Phidget Motor Control")
return
try:
motorControl.setOnAttachHandler(mcAttached)
motorControl.setOnDetachHandler(mcDetached)
motorControl.setOnErrorhandler(mcError)
motorControl.setOnCurrentChangeHandler(mcCurrentChanged)
motorControl.setOnInputChangeHandler(mcInputChanged)
motorControl.setOnVelocityChangeHandler(mcVelocityChanged)
motorControl.setOnSensorUpdateHandler(mcSensorUpdated)
if serial_no != 0:
motorControl.openPhidget(serial_no)
else:
motorControl.openPhidget()
#attach the board
motorControl.waitForAttach(10000)
except PhidgetException as e:
rospy.logerr("Unable to register the handlers: %i: %s", e.code,
e.details)
return
except AttributeError as e:
rospy.logerr("Unable to register the handlers: %s", e)
return
except:
rospy.logerr("Unable to register the handlers: %s", sys.exc_info()[0])
return
if motorControl.isAttached():
rospy.loginfo("Device: %s, Serial: %d, Version: %d",
motorControl.getDeviceName(),
motorControl.getSerialNum(),
motorControl.getDeviceVersion())
# ensure the motor controller attempts to brake the linear
# when velocity is cut to 0
motorControl.setBraking(linear, 100)
# print motorControl.getBraking(linear)
minAcceleration = motorControl.getAccelerationMin(linear)
maxAcceleration = motorControl.getAccelerationMax(linear)
invert_speed = rospy.get_param('~invert_speed', False)
maxPos = rospy.get_param('~max_pos', 1014)
minPos = rospy.get_param('~min_pos', 10)
phidgetMotorTopic = rospy.Subscriber("PhidgetLinear", LinearCommand, move)
phidgetMotorService = rospy.Service('PhidgetLinear', Move, move)
posdataPub = rospy.Publisher("position", UInt32, latch=True)
rospy.spin()
def initMotorAndEncoderBoards():
global motorControl, motorControlRight, rightWheels, phidget1065, encoders, leftEncoderPosition, rightEncoderPosition, motors_inverted, encoders_inverted
try:
motorControl = MotorControl()
except:
rospy.logerr("Unable to connect to Phidget HC Motor Control")
return
try:
motorControl.setOnAttachHandler(mcAttached)
motorControl.setOnErrorhandler(mcError)
motorControl.setOnVelocityChangeHandler(mcVelocityChanged)
motorControl.openPhidget()
#attach the board
motorControl.waitForAttach(10000)
"""use the function getMotorCount() to know how many motors the Phidget board can take
if the result is more than 1, we have a 1064 board and we take care of both motors with one motorControl variable. We need to handle the Phidget encoder board that is
separated from the phidget 1064.
if the result is equal to 1, we have two phidget 1065 boards. The one with serial number that is the lowest will be the left will, the other the right weel. The encoder has to be handled
in this file as it is part of the 1065 board.
"""
if motorControl.getMotorCount() == 1:
phidget1065 = True
rightWheels = 0
motorControlRight = MotorControl()
motorControlRight.setOnAttachHandler(mcAttached)
motorControlRight.setOnErrorhandler(mcError)
motorControlRight.setOnVelocityChangeHandler(mcVelocityChanged)
if motorControl.getSerialNum() > motorControlRight.getSerialNum():
""" As a rule, we need the serial number of the left board to be lower than for the right board. This is for consistancy for all the robots
"""
motorControlTemp = motorControl
motorControl = motorControlRight
motorControlRight = motorControlTemp
#Set up the encoders handler
motorControl.setOnPositionUpdateHandler(leftEncoderUpdated)
motorControlRight.setOnPositionUpdateHandler(rightEncoderUpdated)
#attach the board
motorControlRight.openPhidget()
motorControlRight.waitForAttach(10000)
# we have a motor controller board that control 2 motors but doesn't get any encoder input, so we need to initialize the encoder board.
else:
encoders = Encoder()
encoders.setOnPositionChangeHandler(encoderBoardPositionChange)
encoders.openPhidget()
encoders.waitForAttach(10000)
# some robots have the left and right encoders switched by mistake
if(motors_inverted or encoders_inverted):
leftEncoderPosition = 1;
rightEncoderPosition = 0;
encoders.setEnabled(leftEncoderPosition, True)
encoders.setEnabled(rightEncoderPosition, True)
except PhidgetException as e:
motorsError = 1
encodersError = 1
rospy.logerr("Unable to initialize the motors and encoders board: %i: %s", e.code, e.details)
return
except:
motorsError = 1
encodersError = 1
rospy.logerr("Unable to register the motors and encoders board")
return
if motorControl.isAttached():
rospy.loginfo("Device: %s, Serial: %d, Version: %d",motorControl.getDeviceName(),motorControl.getSerialNum(),motorControl.getDeviceVersion())
if phidget1065 == True:
if motorControlRight.isAttached():
rospy.loginfo("Device: %s, Serial: %d, Version: %d",motorControlRight.getDeviceName(),motorControlRight.getSerialNum(),motorControlRight.getDeviceVersion())
else:
rospy.loginfo("Device: %s, Serial: %d, Version: %d",encoders.getDeviceName(),encoders.getSerialNum(),encoders.getDeviceVersion())
if stop_when_obstacle:
timer = Timer(1.0, checkEncoders)
timer.start()
return
def initMotorAndEncoderBoards():
global motorControl, motorControlRight, rightWheels, phidget1065, encoders, leftEncoderPosition, rightEncoderPosition, motors_inverted, encoders_inverted
try:
motorControl = MotorControl()
except:
rospy.logerr("Unable to connect to Phidget HC Motor Control")
return
try:
motorControl.setOnAttachHandler(mcAttached)
motorControl.setOnErrorhandler(mcError)
motorControl.setOnVelocityChangeHandler(mcVelocityChanged)
motorControl.openPhidget()
#attach the board
motorControl.waitForAttach(10000)
"""use the function getMotorCount() to know how many motors the Phidget board can take
if the result is more than 1, we have a 1064 board and we take care of both motors with one motorControl variable. We need to handle the Phidget encoder board that is
separated from the phidget 1064.
if the result is equal to 1, we have two phidget 1065 boards. The one with serial number that is the lowest will be the left will, the other the right weel. The encoder has to be handled
in this file as it is part of the 1065 board.
"""
if motorControl.getMotorCount() == 1:
phidget1065 = True
rightWheels = 0
motorControlRight = MotorControl()
motorControlRight.setOnAttachHandler(mcAttached)
motorControlRight.setOnErrorhandler(mcError)
motorControlRight.setOnVelocityChangeHandler(mcVelocityChanged)
if motorControl.getSerialNum() > motorControlRight.getSerialNum():
""" As a rule, we need the serial number of the left board to be lower than for the right board. This is for consistancy for all the robots
"""
motorControlTemp = motorControl
motorControl = motorControlRight
motorControlRight = motorControlTemp
#Set up the encoders handler
motorControl.setOnPositionUpdateHandler(leftEncoderUpdated)
motorControlRight.setOnPositionUpdateHandler(rightEncoderUpdated)
#attach the board
motorControlRight.openPhidget()
motorControlRight.waitForAttach(10000)
# we have a motor controller board that control 2 motors but doesn't get any encoder input, so we need to initialize the encoder board.
else:
encoders = Encoder()
encoders.setOnPositionChangeHandler(encoderBoardPositionChange)
encoders.openPhidget()
encoders.waitForAttach(10000)
# some robots have the left and right encoders switched by mistake
if(motors_inverted or encoders_inverted):
leftEncoderPosition = 1;
rightEncoderPosition = 0;
encoders.setEnabled(leftEncoderPosition, True)
encoders.setEnabled(rightEncoderPosition, True)
except PhidgetException as e:
motorsError = 1
encodersError = 1
rospy.logerr("Unable to initialize the motors and encoders board: %i: %s", e.code, e.details)
return
except:
motorsError = 1
encodersError = 1
rospy.logerr("Unable to register the motors and encoders board")
return
if motorControl.isAttached():
rospy.loginfo("Device: %s, Serial: %d, Version: %d",motorControl.getDeviceName(),motorControl.getSerialNum(),motorControl.getDeviceVersion())
if phidget1065 == True:
if motorControlRight.isAttached():
rospy.loginfo("Device: %s, Serial: %d, Version: %d",motorControlRight.getDeviceName(),motorControlRight.getSerialNum(),motorControlRight.getDeviceVersion())
else:
rospy.loginfo("Device: %s, Serial: %d, Version: %d",encoders.getDeviceName(),encoders.getSerialNum(),encoders.getDeviceVersion())
if stop_when_obstacle:
timer = Timer(1.0, checkEncoders)
timer.start()
return
class IOTools:
def __init__(self, onRobot):
self.onRobot = onRobot
# Camera
self._openCam = False
# Motor Control
self._snMot = -1
self._openMot = False
self._attachedMot = False
self._cur = [0, 0]
# Servo
self._snSer = -1
self._openSer = False
self._attachedSer = False
self._limits = [0, 0]
# IF Kit
self._snIF = -1
self._openIF = False
self._attachedIF = False
self._inp = [0, 0, 0, 0, 0, 0, 0, 0]
self._sen = [0, 0, 0, 0, 0, 0, 0, 0]
# LEDs
self._fistTime = True
self._status = [0, 0, 0]
self._mod = [8, 1, 1]
self._rep = [-1, 5, 6]
self._val = [True, False, False]
self._ofs = [0, 0, 0]
self._updaterThread = threading.Thread(target=self.__updateLED)
self._stop = False
self._updaterThread.setDaemon(True)
self._updaterThread.start()
def destroy(self):
# LEDs
self._stop = True
if self._attachedIF:
self._interfaceKit.setOutputState(0, 0)
self._interfaceKit.setOutputState(1, 0)
self._interfaceKit.setOutputState(2, 0)
# Servo
self.servoDisengage()
# Camera
self._openCam = False
if self._openCam:
self._cap.release()
def open(self):
self.__openIF()
self.__openMot()
self.__openSer()
self.__openCam()
###################### Camera ######################
def __openCam(self):
if not os.path.exists('/dev/video0'):
return False
self._cap = cv2.VideoCapture()
if not self._cap.open(-1):
return False
self._openCam = True
def cameraGrab(self):
if self._openCam:
return self._cap.grab()
else:
return False
def cameraRead(self):
if self._openCam:
(ret, img) = self._cap.retrieve()
return img
else:
return False
def cameraSetResolution(self, sz):
if self._openCam:
sz = sz.lower()
if sz == 'low':
self._cap.set(3, 160)
self._cap.set(4, 120)
if sz == 'medium':
self._cap.set(3, 640)
self._cap.set(4, 480)
if sz == 'high':
self._cap.set(3, 800)
self._cap.set(4, 600)
if sz == 'full':
self._cap.set(3, 1280)
self._cap.set(4, 720)
def imshow(self, wnd, img):
if not self.onRobot:
if img.__class__ != numpy.ndarray:
print "imshow - invalid image"
return False
else:
cv2.imshow(wnd, img)
cv2.waitKey(5)
####################### Servo ######################
def __openSer(self):
try:
self._advancedServo = AdvancedServo()
except RuntimeError as e:
print("Servo - Runtime Exception: %s" % e.details)
return False
try:
self._advancedServo.setOnAttachHandler(self.__onAttachedSer)
self._advancedServo.setOnDetachHandler(self.__onDetachedSer)
self._advancedServo.setOnErrorhandler(self.__onErrorSer)
except PhidgetException as e:
print("Servo - Phidget Exception %i: %s" % (e.code, e.details))
return False
try:
self._advancedServo.openPhidget()
except PhidgetException as e:
print("Servo - Phidget Exception %i: %s" % (e.code, e.details))
return False
self._openSer = True
return True
def __onAttachedSer(self, e):
self._snSer = e.device.getSerialNum()
self._advancedServo.setServoType(
0, ServoTypes.PHIDGET_SERVO_HITEC_HS322HD)
self._advancedServo.setAcceleration(
0, self._advancedServo.getAccelerationMax(0))
self._advancedServo.setVelocityLimit(
0, self._advancedServo.getVelocityMax(0))
self._limits[0] = self._advancedServo.getPositionMin(0)
self._limits[1] = self._advancedServo.getPositionMax(0)
print("Servo %i Attached! Range: %f - %f" %
(self._snSer, self._limits[0], self._limits[1]))
self._attachedSer = True
def __onDetachedSer(self, e):
print("Servo %i Detached!" % (self._snSer))
self._snSer = -1
self._attachedSer = False
def __onErrorSer(self, e):
try:
source = e.device
print("Servo %i: Phidget Error %i: %s" %
(source.getSerialNum(), e.eCode, e.description))
except PhidgetException as e:
print("Servo - Phidget Exception %i: %s" % (e.code, e.details))
def __closeSer(self):
if self._openSer == True:
self.servoDisengage()
self._advancedServo.closePhidget()
def servoEngage(self):
if self._attachedSer == True:
self._advancedServo.setEngaged(0, True)
def servoDisengage(self):
if self._attachedSer == True:
self._advancedServo.setEngaged(0, False)
def servoSet(self, pos):
if self._attachedSer == True:
self._advancedServo.setPosition(
0, min(max(pos, self._limits[0]), self._limits[1]))
############### Motor Control ######################
def __openMot(self):
try:
self._motorControl = MotorControl()
except RuntimeError as e:
print("Motor Control - Runtime Exception: %s" % e.details)
return False
try:
self._motorControl.setOnAttachHandler(self.__onAttachedMot)
self._motorControl.setOnDetachHandler(self.__onDetachedMot)
self._motorControl.setOnErrorhandler(self.__onErrorMot)
self._motorControl.setOnCurrentChangeHandler(
self.__onCurrentChangedMot)
except PhidgetException as e:
print("Motor Control - Phidget Exception %i: %s" %
(e.code, e.details))
return False
try:
self._motorControl.openPhidget()
except PhidgetException as e:
print("Motor Control - Phidget Exception %i: %s" %
(e.code, e.details))
return False
self._openMot = True
return True
def __onAttachedMot(self, e):
self._snMot = e.device.getSerialNum()
print("Motor Control %i Attached!" % (self._snMot))
self._attachedMot = True
def __onDetachedMot(self, e):
print("Motor Control %i Detached!" % (self._snMot))
self._snMot = -1
self._attachedMot = False
def __onErrorMot(self, e):
try:
source = e.device
print("Motor Control %i: Phidget Error %i: %s" %
(source.getSerialNum(), e.eCode, e.description))
except PhidgetException as e:
print("Motor Control - Phidget Exception %i: %s" %
(e.code, e.details))
def __onCurrentChangedMot(self, e):
self._cur[e.index] = e.current
def __closeMot(self):
if self._openMot == True:
self._motorControl.closePhidget()
def setMotors(self,
speed1=0.0,
speed2=0.0,
acceleration1=100.0,
acceleration2=100.0):
if self._openMot == True:
self._motorControl.setAcceleration(0, acceleration1)
self._motorControl.setVelocity(0, speed1)
self._motorControl.setAcceleration(1, acceleration2)
self._motorControl.setVelocity(1, speed2)
############### Interface Kit ######################
def __closeIF(self):
if self._openIF == True:
self._interfaceKit.closePhidget()
def __openIF(self):
try:
self._interfaceKit = InterfaceKit()
except RuntimeError as e:
print("IF Kit - Runtime Exception: %s" % e.details)
return False
try:
self._interfaceKit.setOnAttachHandler(self.__onAttachedIF)
self._interfaceKit.setOnDetachHandler(self.__onDetachedIF)
self._interfaceKit.setOnErrorhandler(self.__onErrorIF)
self._interfaceKit.setOnInputChangeHandler(self.__onInputChangedIF)
self._interfaceKit.setOnSensorChangeHandler(
self.__onSensorChangedIF)
except PhidgetException as e:
print("IF Kit - Phidget Exception %i: %s" % (e.code, e.details))
return False
try:
self._interfaceKit.openPhidget()
except PhidgetException as e:
print("IF Kit - Phidget Exception %i: %s" % (e.code, e.details))
return False
self._openIF = True
return True
def __onAttachedIF(self, e):
self._snIF = e.device.getSerialNum()
print("InterfaceKit %i Attached!" % (self._snIF))
self._attachedIF = True
if self._fistTime:
for i in range(0, 3):
self._interfaceKit.setOutputState(0, 1)
self._interfaceKit.setOutputState(1, 1)
self._interfaceKit.setOutputState(2, 1)
time.sleep(0.1)
self._interfaceKit.setOutputState(0, 0)
self._interfaceKit.setOutputState(1, 0)
self._interfaceKit.setOutputState(2, 0)
time.sleep(0.1)
self._fistTime = False
def __onDetachedIF(self, e):
print("InterfaceKit %i Detached!" % (self._snIF))
self._snIF = -1
self._inp = [0, 0, 0, 0, 0, 0, 0, 0]
self._sen = [0, 0, 0, 0, 0, 0, 0, 0]
self._attachedIF = False
def __onErrorIF(self, e):
try:
source = e.device
print("InterfaceKit %i: Phidget Error %i: %s" %
(source.getSerialNum(), e.eCode, e.description))
except PhidgetException as e:
print("IF Kit - Phidget Exception %i: %s" % (e.code, e.details))
def __onSensorChangedIF(self, e):
self._sen[e.index] = e.value
def __onInputChangedIF(self, e):
self._inp[e.index] = e.state
def getSensors(self):
return self._sen
def getInputs(self):
return self._inp
################ LEDs #######################
def __updateLED(self):
t = 0
while self._stop == False:
t = (t + 1) % 100
for i in range(0, 3):
self._status[i] = ((t + self._ofs[i]) % self._mod[i]
== 0) and self._val[i] and bool(
self._rep[i])
self._rep[i] = self._rep[i] - int(self._rep[i] > 0
and self._status[i])
if self._attachedIF:
self._interfaceKit.setOutputState(i, self._status[i])
time.sleep(0.15)
def __setModeLED(self, i, mode, hz=2, cnt=1, ofs=0):
if mode == 'on':
self._rep[i] = -1
self._val[i] = True
self._ofs[i] = 0
self._mod[i] = 1
if mode == 'off':
self._rep[i] = -1
self._val[i] = False
self._ofs[i] = 0
self._mod[i] = 1
if mode == 'flash':
hz = min(max(hz, 1), 100)
self._rep[i] = min(max(cnt, 1), 20)
self._val[i] = True
self._ofs[i] = min(max(ofs, 0), hz)
self._mod[i] = hz
def setStatus(self, mode, hz=2, cnt=1, ofs=0):
self.__setModeLED(1, mode, hz, cnt, ofs)
def setError(self, mode, hz=2, cnt=1, ofs=0):
self.__setModeLED(2, mode, hz, cnt, ofs)
def setSemaphor(self):
self.__setModeLED(1, 'flash', 2, 6, 0)
self.__setModeLED(2, 'flash', 2, 6, 1)
def setupMoveService():
"""Initialize the PhidgetMotor service
Establish a connection with the Phidget HC Motor Control and
then with the ROS Master as the service PhidgetMotor
"""
rospy.init_node(
'PhidgetMotor',
log_level = rospy.DEBUG
)
global motorControl, motorControlRight, minAcceleration, maxAcceleration, timer, motors_inverted, phidget1065, rightWheels, posdataPub
timer = 0
try:
motorControl = MotorControl()
except:
rospy.logerr("Unable to connect to Phidget HC Motor Control")
return
try:
motorControl.setOnAttachHandler(mcAttached)
motorControl.setOnDetachHandler(mcDetached)
motorControl.setOnErrorhandler(mcError)
motorControl.setOnCurrentChangeHandler(mcCurrentChanged)
motorControl.setOnInputChangeHandler(mcInputChanged)
motorControl.setOnVelocityChangeHandler(mcVelocityChanged)
motorControl.openPhidget()
#attach the board
motorControl.waitForAttach(10000)
"""use the function getMotorCount() to know how many motors the Phidget board can take
if the result is more than 1, we have a 1064 board and we take care of both motors with one motorControl variable. The corobot_phidgetIK handles the Phidget encoder board that is
separated of the phidget 1064.
if the result is equal to 1, we have two phidget 1065 boards. The one with serial number that is the lowest will be the left will, the other the right weel. The encoder has to be handled
in this file as it is part of the 1065 board.
"""
if motorControl.getMotorCount() == 1:
phidget1065 = True
rightWheels = 0
motorControlRight.setOnAttachHandler(mcAttached)
motorControlRight.setOnDetachHandler(mcDetached)
motorControlRight.setOnErrorhandler(mcError)
motorControlRight.setOnCurrentChangeHandler(mcCurrentChanged)
motorControlRight.setOnInputChangeHandler(mcInputChanged)
motorControlRight.setOnVelocityChangeHandler(mcVelocityChanged)
if motorControl.getSerialNum() > motorControlRight.getSerialNum():
""" As a rule, we need the serial number of the left board to be lower than for the right board. This is for consistancy for all the robots
"""
motorControlTemp = motorControl
motorControl = motorControlRight
motorControlRight = motorControlTemp
#Set up the encoders handler
motorControl.setOnPositionUpdateHandler(leftEncoderUpdated)
motorControlRight.setOnPositionUpdateHandler(rightEncoderUpdated)
#attach the board
motorControlRight.waitForAttach(10000)
except PhidgetException as e:
rospy.logerr("Unable to register the handlers: %i: %s", e.code, e.details)
return
except:
rospy.logerr("Unable to register the handlers")
return
if motorControl.isAttached():
rospy.loginfo(
"Device: %s, Serial: %d, Version: %d",
motorControl.getDeviceName(),
motorControl.getSerialNum(),
motorControl.getDeviceVersion()
)
if phidget1065 == True:
if motorControlRight.isAttached():
rospy.loginfo(
"Device: %s, Serial: %d, Version: %d",
motorControlRight.getDeviceName(),
motorControlRight.getSerialNum(),
motorControlRight.getDeviceVersion()
)
minAcceleration = motorControl.getAccelerationMin(leftWheels)
maxAcceleration = motorControl.getAccelerationMax(leftWheels)
motors_inverted = rospy.get_param('~motors_inverted', False)
phidgetMotorTopic = rospy.Subscriber("PhidgetMotor", MotorCommand ,move)
phidgetMotorService = rospy.Service('PhidgetMotor',Move, move)
if phidget1065 == True:
posdataPub = rospy.Publisher("position_data", PosMsg)
rospy.spin()
def AttachMotorControl(databasepath, serialNumber):
def onAttachHandler(event):
logString = "MotorControl Attached " + str(event.device.getSerialNum())
#print(logString)
DisplayAttachedDeviceInfo(event.device)
def onDetachHandler(event):
logString = "MotorControl Detached " + str(event.device.getSerialNum())
#print(logString)
DisplayDetachedDeviceInfo(event.device)
event.device.closePhidget()
def onErrorHandler(event):
logString = "MotorControl Error " + str(event.device.getSerialNum()) + ", Error: " + event.description
print(logString)
DisplayErrorDeviceInfo(event.device)
def onServerConnectHandler(event):
logString = "MotorControl Server Connect " + str(event.device.getSerialNum())
#print(logString)
def onServerDisconnectHandler(event):
logString = "MotorControl Server Disconnect " + str(event.device.getSerialNum())
#print(logString)
def backEMFUpdateHandler(event):
logString = "MotorControl BackEMF Update"
#print(logString)
try:
conn = sqlite3.connect(databasepath)
#conn.execute("INSERT INTO MOTORCONTROL_BACKEMFUPDATE VALUES(NULL, DateTime('now'), ?, ?, ?)",
#(event.device.getSerialNum(), event.index, event.voltage))
conn.commit()
conn.close()
except sqlite3.Error as e:
print "An error occurred:", e.args[0]
def currentChangeHandler(event):
logString = "MotorControl Current Change"
#print(logString)
try:
conn = sqlite3.connect(databasepath)
#conn.execute("INSERT INTO MOTORCONTROL_CURRENTCHANGE VALUES(NULL, DateTime('now'), ?, ?, ?)",
#(event.device.getSerialNum(), event.index, event.current))
conn.commit()
conn.close()
except sqlite3.Error as e:
print "An error occurred:", e.args[0]
def currentUpdateHandler(event):
logString = "MotorControl Current Update"
#print(logString)
try:
conn = sqlite3.connect(databasepath)
#conn.execute("INSERT INTO MOTORCONTROL_CURRENTUPDATE VALUES(NULL, DateTime('now'), ?, ?, ?)",
#(event.device.getSerialNum(), event.index, event.current))
conn.commit()
conn.close()
except sqlite3.Error as e:
print "An error occurred:", e.args[0]
def inputChangeHandler(event):
logString = "MotorControl Input Change"
#print(logString)
try:
conn = sqlite3.connect(databasepath)
#conn.execute("INSERT INTO MOTORCONTROL_INPUTCHANGE VALUES(NULL, DateTime('now'), ?, ?, ?)",
#(event.device.getSerialNum(), event.index, event.state))
conn.commit()
conn.close()
except sqlite3.Error as e:
print "An error occurred:", e.args[0]
def positionChangeHandler(event):
logString = "MotorControl Position Change"
#print(logString)
try:
conn = sqlite3.connect(databasepath)
#conn.execute("INSERT INTO MOTORCONTROL_POSITIONCHANGE VALUES(NULL, DateTime('now'), ?, ?, ?)",
#(event.device.getSerialNum(), event.index, event.current))
conn.commit()
conn.close()
except sqlite3.Error as e:
print "An error occurred:", e.args[0]
def positionUpdateHandler(event):
logString = "MotorControl Position Update"
#print(logString)
try:
conn = sqlite3.connect(databasepath)
#conn.execute("INSERT INTO MOTORCONTROL_POSITIONUPDATE VALUES(NULL, DateTime('now'), ?, ?, ?)",
#(event.device.getSerialNum(), event.index, event.position))
conn.commit()
conn.close()
except sqlite3.Error as e:
print "An error occurred:", e.args[0]
def sensorUpdateHandler(event):
logString = "MotorControl Sensor Update"
#print(logString)
try:
conn = sqlite3.connect(databasepath)
#conn.execute("INSERT INTO MOTORCONTROL_SENSORUPDATE VALUES(NULL, DateTime('now'), ?, ?, ?)",
#(event.device.getSerialNum(), event.index, event.value))
conn.commit()
conn.close()
except sqlite3.Error as e:
print "An error occurred:", e.args[0]
def velocityChangeHandler(event):
logString = "MotorControl Velocity Change"
#print(logString)
try:
conn = sqlite3.connect(databasepath)
conn.execute("INSERT INTO MOTORCONTROL_VELOCITYCHANGE VALUES(NULL, DateTime('now'), ?, ?, ?)",
(event.device.getSerialNum(), event.index, event.velocity))
conn.commit()
conn.close()
except sqlite3.Error as e:
print "An error occurred:", e.args[0]
try:
p = MotorControl()
p.setOnAttachHandler(onAttachHandler)
p.setOnDetachHandler(onDetachHandler)
p.setOnErrorhandler(onErrorHandler)
p.setOnServerConnectHandler(onServerConnectHandler)
p.setOnServerDisconnectHandler(onServerDisconnectHandler)
p.setOnBackEMFUpdateHandler (backEMFUpdateHandler)
p.setOnCurrentChangeHandler (currentChangeHandler)
p.setOnCurrentUpdateHandler (currentUpdateHandler)
p.setOnInputChangeHandler (inputChangeHandler)
p.setOnPositionChangeHandler(positionChangeHandler)
p.setOnPositionUpdateHandler(positionUpdateHandler)
p.setOnSensorUpdateHandler (sensorUpdateHandler)
p.setOnVelocityChangeHandler(velocityChangeHandler)
p.openPhidget(serialNumber)
except PhidgetException as e:
print("Phidget Exception %i: %s" % (e.code, e.details))
print("Exiting...")
exit(1)
