def __init__(self):
self.min_speed = 0
self.max_speed = 100
self.speed_delta = 5
self.speed = 0 # int between to 100
self.train_enginecar_keys = None # TODO - do an enum of KEYS_ON and KEYS_OFF, to stop/start the car
self.direction = RIGHT # left or right
self.keys_on = False
self.msg_to_display = ""
GPIO_handler.initialize()
self.speed_control = GPIO_handler.get_speed_control()
def update():
config = ConfigObj('/home/pi/node-fyp/config/general.ini')
GPIO_handler.write(config['last_state']['plug_state'])
if config['range_extension']['enable'] == 'true':
subprocess.call('ifconfig wlan0 ' + config['range_extension']['router'] + ' netmask ' + config['range_extension']['netmask'], shell=True)
subprocess.call('service isc-dhcp-server restart', shell=True)
subprocess.call('service hostapd restart', shell=True)
else:
subprocess.call('service hostapd stop', shell=True)
subprocess.call('service udhcpd stop', shell=True)
def set_direction(self, _direction):
# TBD - add check if direction is changing.
# if yes: wait 2 seconds to avoid damage to engine
if self.keys_on == False:
return
if _direction == RIGHT:
self.direction = RIGHT
GPIO_handler.set_right()
# print(">>>",end='')
else:
self.direction = LEFT
GPIO_handler.set_left()
def train_exit(self):
self.keys_on = False
self.speed_control.stop()
GPIO_handler.cleanup()
def motor_shut_down(self):
if self.keys_on == True:
self.keys_on = False
self.speed = 0
self.speed_control.stop()
GPIO_handler.shut_down()