def __init__(self, name):
rospy.loginfo("Starting %s", name)
self.name = name
self.board = FuriousBoard()
self.throttle = Servo("throttle")
self.steering = Servo("steering")
self.pan = Servo("pan")
self.tilt = Servo("tilt")
def __init__(self, name):
rospy.loginfo("Starting %s", name)
self.name = name
self.board = FuriousBoard()
self.throttle = Servo("throttle")
self.steering = Servo("steering")
self.pan = Servo("pan")
self.tilt = Servo("tilt")
class FuriousDriverNode(object):
def __init__(self, name):
rospy.loginfo("Starting %s", name)
self.name = name
self.board = FuriousBoard()
self.throttle = Servo("throttle")
self.steering = Servo("steering")
self.pan = Servo("pan")
self.tilt = Servo("tilt")
def load_config(self, cmd_line_arg):
cfg = find_config_file(cmd_line_arg)
self.throttle.load_config(cfg)
self.steering.load_config(cfg)
self.pan.load_config(cfg)
self.tilt.load_config(cfg)
def detect_port(self, port):
if not port:
rospy.logwarn("No port specified.")
try:
if rospy.has_param(simulator.PARAM_NAME):
port = rospy.get_param(simulator.PARAM_NAME)
rospy.loginfo("Simulator detected: using port %s", port)
except socket.error:
rospy.logfatal("Unable to connnect to ROS master. Is it running?")
exit(1)
if not port:
rospy.loginfo("Scanning for Furious board...")
port = self.board.probe()
if not port:
rospy.logfatal("ERROR: unable to detect Furious board.")
exit(1)
return port
def connect(self, port):
if self.board.is_valid_port(port):
self.board.open(port)
rospy.loginfo("Connected to furious board on port %s", port)
# sweep the servos
# self.board.servos[self.throttle.get_id()] = \
# self.throttle.get_raw_value(-1.0)
# sent = self.board.update()
# rospy.sleep(0.1)
rospy.loginfo("Booting ESC, please wait...")
sent = self.stop_servos()
rospy.loginfo("sent <%s> for init", sent)
rospy.sleep(5)
sent = self.stop_servos()
rospy.loginfo("sent <%s> for init stop", sent)
rospy.sleep(0.1)
rospy.loginfo("Ready.")
# rospy.sleep(0.1)
else:
rospy.logfatal("'%s' is not a valid port", port)
exit(1)
def init_ros(self, debug):
"""
Establishes publishers, subscribers, and loop frequency, and
calls rospy.init_node().
"""
log_level = rospy.INFO
if debug:
log_level = rospy.DEBUG
self.pub = rospy.Publisher(STATE_TOPIC, RobotState)
rospy.init_node(self.name, log_level=log_level)
rospy.Subscriber(SERVO_TOPIC, ServoCommand, self.on_servo_command)
rospy.Subscriber(CAR_TOPIC, CarCommand, self.on_car_command)
rospy.Subscriber(TURRET_TOPIC, TurretCommand, self.on_turret_command)
self.timer = rospy.Rate(LOOP_FREQ)
def on_servo_command(self, msg):
self.board.servos[msg.id] = msg.pwm
def on_car_command(self, msg):
self.set_throttle(msg.throttle)
self.set_steering(msg.steering)
def on_turret_command(self, msg):
self.board.servos[self.pan.get_id()] = \
self.pan.get_raw_value(msg.pan)
self.board.servos[self.tilt.get_id()] = \
self.tilt.get_raw_value(msg.tilt)
def set_throttle(self, val):
self.board.servos[self.throttle.get_id()] = \
self.throttle.get_raw_value(val)
def set_steering(self, val):
self.board.servos[self.steering.get_id()] = \
self.steering.get_raw_value(val)
def stop_servos(self):
"""
Immediately returns all servos to their center positions.
"""
self.set_throttle(0.0)
self.set_steering(0.0)
self.board.servos[self.pan.get_id()] = \
self.pan.get_raw_value(0.0)
self.board.servos[self.tilt.get_id()] = \
self.tilt.get_raw_value(0.0)
return self.board.update()
def run(self):
msg = self.init_state_msg()
while self.board.is_ready() and (not rospy.is_shutdown()):
try:
sent = self.board.update()
time = rospy.get_time() % 1000
rospy.loginfo("Sent <%s> at time %.2f", sent, time)
msg = self.update_state_msg(msg)
self.pub.publish(msg)
self.timer.sleep()
except rospy.ROSInterruptException:
rospy.logwarn("Caught ROSInterruptException")
def init_state_msg(self):
msg = RobotState()
msg.portname = self.board.get_port_name()
msg.num_analog = FuriousBoard.NUM_ANALOG
msg.analog = [ 0 for x in range(msg.num_analog) ]
msg.num_batteries = FuriousBoard.NUM_BATTERIES
msg.battery_names = [ "motor", "logic" ]
msg.batteries = [ 0 for x in range(msg.num_batteries) ]
return msg
def update_state_msg(self, msg):
for i in range(FuriousBoard.NUM_ANALOG):
msg.analog[i] = self.board.get_analog(i)
msg.batteries[0] = self.board.get_motor_battery()
msg.batteries[1] = self.board.get_logic_battery()
msg.odometer = self.board.get_odometer()
return msg
def shutdown(self):
rospy.loginfo("Shutting down %s", self.name)
#sent = self.stop_servos()
#rospy.logdebug("Sent <%s> for shutdown" % sent)
sent = self.board.reset()
rospy.loginfo("Sent <%s> for shutdown" % sent)
self.board.close()
class FuriousDriverNode(object):
def __init__(self, name):
rospy.loginfo("Starting %s", name)
self.name = name
self.board = FuriousBoard()
self.throttle = Servo("throttle")
self.steering = Servo("steering")
self.pan = Servo("pan")
self.tilt = Servo("tilt")
def load_config(self, cmd_line_arg):
cfg = find_config_file(cmd_line_arg)
self.throttle.load_config(cfg)
self.steering.load_config(cfg)
self.pan.load_config(cfg)
self.tilt.load_config(cfg)
def detect_port(self, port):
if not port:
rospy.logwarn("No port specified.")
try:
if rospy.has_param(simulator.PARAM_NAME):
port = rospy.get_param(simulator.PARAM_NAME)
rospy.loginfo("Simulator detected: using port %s", port)
except socket.error:
rospy.logfatal(
"Unable to connnect to ROS master. Is it running?")
exit(1)
if not port:
rospy.loginfo("Scanning for Furious board...")
port = self.board.probe()
if not port:
rospy.logfatal("ERROR: unable to detect Furious board.")
exit(1)
return port
def connect(self, port):
if self.board.is_valid_port(port):
self.board.open(port)
rospy.loginfo("Connected to furious board on port %s", port)
# sweep the servos
# self.board.servos[self.throttle.get_id()] = \
# self.throttle.get_raw_value(-1.0)
# sent = self.board.update()
# rospy.sleep(0.1)
rospy.loginfo("Booting ESC, please wait...")
sent = self.stop_servos()
rospy.loginfo("sent <%s> for init", sent)
rospy.sleep(5)
sent = self.stop_servos()
rospy.loginfo("sent <%s> for init stop", sent)
rospy.sleep(0.1)
rospy.loginfo("Ready.")
# rospy.sleep(0.1)
else:
rospy.logfatal("'%s' is not a valid port", port)
exit(1)
def init_ros(self, debug):
"""
Establishes publishers, subscribers, and loop frequency, and
calls rospy.init_node().
"""
log_level = rospy.INFO
if debug:
log_level = rospy.DEBUG
self.pub = rospy.Publisher(STATE_TOPIC, RobotState)
rospy.init_node(self.name, log_level=log_level)
rospy.Subscriber(SERVO_TOPIC, ServoCommand, self.on_servo_command)
rospy.Subscriber(CAR_TOPIC, CarCommand, self.on_car_command)
rospy.Subscriber(TURRET_TOPIC, TurretCommand, self.on_turret_command)
self.timer = rospy.Rate(LOOP_FREQ)
def on_servo_command(self, msg):
self.board.servos[msg.id] = msg.pwm
def on_car_command(self, msg):
self.set_throttle(msg.throttle)
self.set_steering(msg.steering)
def on_turret_command(self, msg):
self.board.servos[self.pan.get_id()] = \
self.pan.get_raw_value(msg.pan)
self.board.servos[self.tilt.get_id()] = \
self.tilt.get_raw_value(msg.tilt)
def set_throttle(self, val):
self.board.servos[self.throttle.get_id()] = \
self.throttle.get_raw_value(val)
def set_steering(self, val):
self.board.servos[self.steering.get_id()] = \
self.steering.get_raw_value(val)
def stop_servos(self):
"""
Immediately returns all servos to their center positions.
"""
self.set_throttle(0.0)
self.set_steering(0.0)
self.board.servos[self.pan.get_id()] = \
self.pan.get_raw_value(0.0)
self.board.servos[self.tilt.get_id()] = \
self.tilt.get_raw_value(0.0)
return self.board.update()
def run(self):
msg = self.init_state_msg()
while self.board.is_ready() and (not rospy.is_shutdown()):
try:
sent = self.board.update()
time = rospy.get_time() % 1000
rospy.loginfo("Sent <%s> at time %.2f", sent, time)
msg = self.update_state_msg(msg)
self.pub.publish(msg)
self.timer.sleep()
except rospy.ROSInterruptException:
rospy.logwarn("Caught ROSInterruptException")
def init_state_msg(self):
msg = RobotState()
msg.portname = self.board.get_port_name()
msg.num_analog = FuriousBoard.NUM_ANALOG
msg.analog = [0 for x in range(msg.num_analog)]
msg.num_batteries = FuriousBoard.NUM_BATTERIES
msg.battery_names = ["motor", "logic"]
msg.batteries = [0 for x in range(msg.num_batteries)]
return msg
def update_state_msg(self, msg):
for i in range(FuriousBoard.NUM_ANALOG):
msg.analog[i] = self.board.get_analog(i)
msg.batteries[0] = self.board.get_motor_battery()
msg.batteries[1] = self.board.get_logic_battery()
msg.odometer = self.board.get_odometer()
return msg
def shutdown(self):
rospy.loginfo("Shutting down %s", self.name)
#sent = self.stop_servos()
#rospy.logdebug("Sent <%s> for shutdown" % sent)
sent = self.board.reset()
rospy.loginfo("Sent <%s> for shutdown" % sent)
self.board.close()