Integrated hardware commands to Facial Recognition Software.

Hardware/Motor.py

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+import RPi.GPIO as GPIO
+from time import sleep
+
+
+class Motor:
+
+    def __init__(self):
+        print("Starting of the program")
+
+        GPIO.setmode(GPIO.BCM)
+        GPIO.setwarnings(False)
+
+        # preset GPIO ports for 2 motors
+        self.Motor1 = {'EN': 25, 'input1': 24, 'input2': 23}
+        self.Motor2 = {'EN': 17, 'input1': 27, 'input2': 22}
+
+        # preset the port for buttons and alarm
+        GPIO.setup(5, GPIO.IN)  # start motor button, initially True
+        GPIO.setup(13, GPIO.IN)  # stop motor button, initially True
+        GPIO.setup(16, GPIO.IN)  # start alarm button, initially True
+        GPIO.setup(26, GPIO.OUT)  # alarm output
+
+        for x in self.Motor1:
+            GPIO.setup(self.Motor1[x], GPIO.OUT)
+            GPIO.setup(self.Motor2[x], GPIO.OUT)
+
+        # utilize PWM function, enable motors and frequency is 100Hz
+        self.EN1 = GPIO.PWM(self.Motor1['EN'], 100)
+        self.EN2 = GPIO.PWM(self.Motor2['EN'], 100)
+
+        self.EN1.start(0)
+        self.EN2.start(0)
+
+        # stop signals for motors and alarm
+        self.motorStop = False
+        self.alarmStop = False
+
+    def start_motor(self):
+
+        while (not self.motorStop) or (not GPIO.input(5)):  # break the loop when motor stop signal is detected
+
+            print("FORWARD MOTION")
+            self.motorStop = self.stop_motor()
+
+            self.EN1.ChangeDutyCycle(50)
+            self.EN2.ChangeDutyCycle(50)
+
+            GPIO.output(self.Motor1['input1'], GPIO.HIGH)
+            GPIO.output(self.Motor1['input2'], GPIO.LOW)
+
+            GPIO.output(self.Motor2['input1'], GPIO.HIGH)
+            GPIO.output(self.Motor2['input2'], GPIO.LOW)
+
+        GPIO.cleanup()
+
+    def stop_motor(self):
+
+        userStop = input("Stop the motor? choose between Y/N")
+
+        if (userStop == "Y") or (not GPIO.input(13)):
+            print("stopping motor...")
+            self.EN1.ChangeDutyCycle(0)
+            self.EN2.ChangeDutyCycle(0)
+            print("motor stops")
+            return True
+        elif userStop == "N":
+            return False
+        else:
+            self.stop_motor(self)
+
+    def start_alarm(self):
+
+        while (not self.alarmStop) or (not GPIO.input(16)):
+            self.alarmStop = self.stop_alarm()
+            GPIO.output(26, True)
+
+        GPIO.cleanup()
+
+    def stop_alarm(self):
+
+        stopRequest = input("Turn off the alarm? choose between Y/N")
+        if stopRequest == "Y":
+            print("Alarm turning off...")
+            GPIO.output(26, False)
+            print("Alarm is off")
+            return True
+        elif stopRequest == "N":
+            return False
+        else:
+            self.stop_alarm()
+
+
+if __name__ == "__main__":
+    # print("Execute function...")
+
+    motor1 = Motor()
+    # motor1.start_motor()
+    motor1.start_alarm()

Hardware/README.txt

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+Motor class has the following functions:
+
+-------waiting to be verified by LeYao Lee----------
+    
+    - start motor by physical button or app call
+    - stop motor by physical button or app call
+    - turn on the alarm by physical button or app call
+    - turn off the alarm by physical button or app call