python类output()的实例源码

def toggle(gpio, duration):
    GPIO.output(gpio, True)
    time.sleep(duration)
    GPIO.output(gpio, False)
    time.sleep(duration)
    return


# Set according to status

def setstatus(status):
    if status != "":
        alloff()
        if status == "SUCCESS":
            GPIO.output(getcode('green'), True)

        if status == "UNSTABLE":
            GPIO.output(getcode('yellow'), True)

        if status == "FAILURE":
            GPIO.output(getcode('red'), True)
    return

def led1(on_off):
    GPIO.output(7, bool(on_off))

def led2(on_off):
    GPIO.output(37, bool(on_off))

def led1(on_off):
    GPIO.output(7, bool(on_off))

def led2(on_off):
    GPIO.output(37, bool(on_off))

def switchOnLight(PIN):
    GPIO.setup(PIN, GPIO.OUT)
    GPIO.output(PIN, True)

def switchOffLight(PIN):
    GPIO.setup(PIN, GPIO.OUT)
    GPIO.output(PIN, False)

def beepOn():
    global DisableBeep
    if DisableBeep == False:
        GPIO.output(BeepPin, GPIO.LOW)

def beepOff():
    GPIO.output(BeepPin, GPIO.HIGH)

def ledOn():
    GPIO.output(LedPin, GPIO.LOW)

def ledOff():
    GPIO.output(LedPin, GPIO.HIGH)

# Event Listener

def setstate(roomNumber, accNumber, state):
    if len(outPin[roomNumber]) != 0:
        GPIO.output(outPin[roomNumber][accNumber], 1 - state)
    #subprocess.call(['./echo.sh'], shell=True)
    else:
        #action for other rooms
        subprocess.call(['./echo.sh'], shell=True)
    return "0"

def toggle(roomNumber, accNumber):
    if len(outPin[roomNumber]) != 0:
        state= 1 - GPIO.input(outPin[roomNumber][accNumber])
        GPIO.output(outPin[roomNumber][accNumber], state)
        #subprocess.call(['./echo.sh'], shell=True)
    else:
        #action for other rooms
        subprocess.call(['./echo.sh'], shell=True)
    #print(roomNumber, accNumber)
    buttonHtmlName = accName[roomNumber][accNumber].replace(" ", "<br>")
    passer="<button class='%s' onclick='toggle(%d,%d)'>%s</button>" % (accState(roomNumber,accNumber), roomNumber, accNumber, buttonHtmlName)
    return passer

def setio(self, io_number, state):
        if self.importlib is not None:
            GPIO.output(io_number, state)

def switchio(self, io_number):
        if self.importlib is not None:
            GPIO.output(io_number, not self.getio(io_number))

def reset_led(self):
        GPIO.setmode(GPIO.BOARD)
        GPIO.setwarnings(False)
        for gpio in self.gpios:
            gpio = int(gpio)
            GPIO.setup(gpio, GPIO.OUT)
            GPIO.output(gpio, GPIO.HIGH)

def enable_tally(self, enable):
        if enable:
            GPIO.output(self.gpio_red, GPIO.LOW)
        else:
            GPIO.output(self.gpio_red, GPIO.HIGH)

def get_state(sleep_time=wheel_pulse):

    # clear trigger sensor
    gpio.output(trigger, False)
    time.sleep(sleep_time)

    # send trigger pulse
    gpio.output(trigger, True)
    time.sleep(0.00001)
    gpio.output(trigger, False)

    while gpio.input(echo) == 0:
        pulse_start = time.time()

    while gpio.input(echo) == 1:
        pulse_end = time.time()


    pulse_duration = pulse_end - pulse_start
    distance = pulse_duration * 343 * 100 / 2.  # speed of sound m/s * m to cm / round trip

    if distance > 2 and distance < 400:         # sensor range
        distance = distance + distance_from_sensor_to_car_front

    # don't worry about things further 4'
    # this also reduces the size of the state machine
    if distance >= max_distance:    
        distance = max_distance - 1

    return int(distance)





##############################################################################
# perform action
##############################################################################

def forward(t=wheel_pulse):

    gpio.output(forward_right, gpio.HIGH)
    gpio.output(forward_left, gpio.HIGH)

    sleep(t)
    gpio.output(forward_right, gpio.LOW)
    gpio.output(forward_left, gpio.LOW)