def control(vDelta=0, hDelta=0):
Servo.initialize()
if vDelta != 0:
duty_cycle = float(Database().get(Servo.V_DB_KEY))
duty_cycle += vDelta
duty_cycle = max(duty_cycle, 2.5)
duty_cycle = min(duty_cycle, 12.5)
print(duty_cycle)
Database().set(Servo.V_DB_KEY, duty_cycle)
Servo.vPin.ChangeDutyCycle(duty_cycle)
time.sleep(0.02)
Servo.vPin.ChangeDutyCycle(0)
time.sleep(0.05)
if hDelta != 0:
duty_cycle = float(Database().get(Servo.H_DB_KEY))
duty_cycle += hDelta
duty_cycle = max(duty_cycle, 2.5)
duty_cycle = min(duty_cycle, 12.5)
print(duty_cycle)
Database().set(Servo.H_DB_KEY, duty_cycle)
Servo.hPin.ChangeDutyCycle(duty_cycle)
time.sleep(0.02)
Servo.hPin.ChangeDutyCycle(0)
time.sleep(0.05)
def initialize():
if Servo.hPin is None and Servo.vPin is None:
if Database().get(Servo.H_DB_KEY) is None:
Database().set(Servo.H_DB_KEY, 7.5)
if Database().get(Servo.V_DB_KEY) is None:
Database().set(Servo.V_DB_KEY, 7.5)
## horizontal servo
GPIO.setmode(GPIO.BCM)
GPIO.setup(17, GPIO.OUT, initial=False)
Servo.hPin = GPIO.PWM(17, 50) # 50HZ
Servo.hPin.start(0)
## vertical servo
GPIO.setup(19, GPIO.OUT, initial=False)
Servo.vPin = GPIO.PWM(19, 50) # 50HZ
Servo.vPin.start(0)
def getBrightness():
value = Database().get("brightness")
if value is None:
value = 60
Database().set("brightness", value)
return value
def setBrightness(delta):
value = int(Camera.getBrightness()) + int(delta)
value = min(100, max(0, value))
Database().set("brightness", value)
def is_enable_face_detect():
return Database().get("face_detect") == "1"
def disable_face_detect():
Database().set("face_detect", "0")
def enable_face_detect():
Database().set("face_detect", "1")