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422 lines
12 KiB
422 lines
12 KiB
import RPi.GPIO as GPIO
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from rpi_ws281x import Adafruit_NeoPixel, Color
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import time
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import math
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import smbus
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class motor ():
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def __init__(self, ain1=12, ain2=13, ena=6, bin1=20, bin2=21, enb=26):
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self.AIN1 = ain1
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self.AIN2 = ain2
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self.BIN1 = bin1
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self.BIN2 = bin2
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self.ENA = ena
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self.ENB = enb
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self.PA = 50
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self.PB = 50
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GPIO.setmode(GPIO.BCM)
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GPIO.setwarnings(False)
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GPIO.setup(self.AIN1, GPIO.OUT)
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GPIO.setup(self.AIN2, GPIO.OUT)
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GPIO.setup(self.BIN1, GPIO.OUT)
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GPIO.setup(self.BIN2, GPIO.OUT)
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GPIO.setup(self.ENA, GPIO.OUT)
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GPIO.setup(self.ENB, GPIO.OUT)
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self.PWMA = GPIO.PWM(self.ENA, 500)
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self.PWMB = GPIO.PWM(self.ENB, 500)
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self.PWMA.start(self.PA)
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self.PWMB.start(self.PB)
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self.stop()
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def forward(self, PWM=30):
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self.PWMA.ChangeDutyCycle(PWM)
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self.PWMB.ChangeDutyCycle(PWM)
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GPIO.output(self.AIN1, GPIO.LOW)
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GPIO.output(self.AIN2, GPIO.HIGH)
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GPIO.output(self.BIN1, GPIO.LOW)
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GPIO.output(self.BIN2, GPIO.HIGH)
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def stop(self):
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self.PWMA.ChangeDutyCycle(0)
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self.PWMB.ChangeDutyCycle(0)
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GPIO.output(self.AIN1, GPIO.LOW)
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GPIO.output(self.AIN2, GPIO.LOW)
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GPIO.output(self.BIN1, GPIO.LOW)
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GPIO.output(self.BIN2, GPIO.LOW)
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def backward(self, PWM=30):
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self.PWMA.ChangeDutyCycle(PWM)
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self.PWMB.ChangeDutyCycle(PWM)
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GPIO.output(self.AIN1, GPIO.HIGH)
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GPIO.output(self.AIN2, GPIO.LOW)
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GPIO.output(self.BIN1, GPIO.HIGH)
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GPIO.output(self.BIN2, GPIO.LOW)
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def left(self, PWM=30):
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self.PWMA.ChangeDutyCycle(PWM)
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self.PWMB.ChangeDutyCycle(PWM)
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GPIO.output(self.AIN1, GPIO.HIGH)
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GPIO.output(self.AIN2, GPIO.LOW)
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GPIO.output(self.BIN1, GPIO.LOW)
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GPIO.output(self.BIN2, GPIO.HIGH)
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def right(self, PWM=30):
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self.PWMA.ChangeDutyCycle(PWM)
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self.PWMB.ChangeDutyCycle(PWM)
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GPIO.output(self.AIN1, GPIO.LOW)
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GPIO.output(self.AIN2, GPIO.HIGH)
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GPIO.output(self.BIN1, GPIO.HIGH)
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GPIO.output(self.BIN2, GPIO.LOW)
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def setMotor(self, left, right):
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left = -left
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right = -right
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if((right >= 0) and (right <= 100)):
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GPIO.output(self.AIN1, GPIO.HIGH)
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GPIO.output(self.AIN2, GPIO.LOW)
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self.PWMA.ChangeDutyCycle(right)
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elif((right < 0) and (right >= -100)):
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GPIO.output(self.AIN1, GPIO.LOW)
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GPIO.output(self.AIN2, GPIO.HIGH)
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self.PWMA.ChangeDutyCycle(0 - right)
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if((left >= 0) and (left <= 100)):
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GPIO.output(self.BIN1, GPIO.HIGH)
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GPIO.output(self.BIN2, GPIO.LOW)
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self.PWMB.ChangeDutyCycle(left)
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elif((left < 0) and (left >= -100)):
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GPIO.output(self.BIN1, GPIO.LOW)
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GPIO.output(self.BIN2, GPIO.HIGH)
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self.PWMB.ChangeDutyCycle(0 - left)
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class beep():
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def __init__(self):
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self.BUZ = 4
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GPIO.setup(self.BUZ, GPIO.OUT)
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def on(self):
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GPIO.output(self.BUZ, GPIO.HIGH)
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def off(self):
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GPIO.output(self.BUZ, GPIO.LOW)
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class joystick ():
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def __init__(self):
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self.CTR = 7
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self.A = 8
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self.B = 9
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self.C = 10
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self.D = 11
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GPIO.setmode(GPIO.BCM)
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GPIO.setwarnings(False)
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GPIO.setup(self.CTR, GPIO.IN, GPIO.PUD_UP)
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GPIO.setup(self.A, GPIO.IN, GPIO.PUD_UP)
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GPIO.setup(self.B, GPIO.IN, GPIO.PUD_UP)
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GPIO.setup(self.C, GPIO.IN, GPIO.PUD_UP)
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GPIO.setup(self.D, GPIO.IN, GPIO.PUD_UP)
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def check_ctr(self):
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return (GPIO.input(self.CTR) == 0)
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def check_a(self):
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return (GPIO.input(self.A) == 0)
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def check_b(self):
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return (GPIO.input(self.B) == 0)
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def check_c(self):
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return (GPIO.input(self.C) == 0)
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def check_d(self):
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return (GPIO.input(self.D) == 0)
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class ir_controll ():
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def __init__(self):
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self.IR = 17
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GPIO.setmode(GPIO.BCM)
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GPIO.setwarnings(False)
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GPIO.setup(self.IR, GPIO.IN)
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def getkey(self):
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if GPIO.input(self.IR) == 0:
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count = 0
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while GPIO.input(self.IR) == 0 and count < 200: # 9ms
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count += 1
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time.sleep(0.00006)
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if(count < 10):
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return
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count = 0
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while GPIO.input(self.IR) == 1 and count < 80: # 4.5ms
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count += 1
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time.sleep(0.00006)
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idx = 0
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cnt = 0
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data = [0, 0, 0, 0]
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for i in range(0, 32):
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count = 0
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while GPIO.input(self.IR) == 0 and count < 15: # 0.56ms
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count += 1
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time.sleep(0.00006)
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count = 0
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while GPIO.input(self.IR) == 1 and count < 40: # 0: 0.56mx
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count += 1 # 1: 1.69ms
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time.sleep(0.00006)
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if count > 7:
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data[idx] |= 1 << cnt
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if cnt == 7:
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cnt = 0
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idx += 1
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else:
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cnt += 1
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# print data
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if data[0]+data[1] == 0xFF and data[2]+data[3] == 0xFF: # check
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return data[2]
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else:
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return "repeat"
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class ir_bumper ():
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def __init__(self):
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self.DR = 16
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self.DL = 19
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GPIO.setmode(GPIO.BCM)
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GPIO.setwarnings(False)
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GPIO.setup(self.DR, GPIO.IN, GPIO.PUD_UP)
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GPIO.setup(self.DL, GPIO.IN, GPIO.PUD_UP)
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def check_r(self):
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return (GPIO.input(self.DR) == 0)
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def check_l(self):
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return (GPIO.input(self.DL) == 0)
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# Ultrasonic distance measurement
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class us_sensor ():
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def __init__(self):
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self.TRIG = 22
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self.ECHO = 27
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GPIO.setmode(GPIO.BCM)
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GPIO.setwarnings(False)
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GPIO.setup(self.TRIG, GPIO.OUT, initial=GPIO.LOW)
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GPIO.setup(self.ECHO, GPIO.IN)
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def dist(self):
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GPIO.output(self.TRIG, GPIO.HIGH)
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time.sleep(0.000015)
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GPIO.output(self.TRIG, GPIO.LOW)
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while not GPIO.input(self.ECHO):
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pass
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t1 = time.time()
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while GPIO.input(self.ECHO):
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pass
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t2 = time.time()
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return (t2-t1)*34000/2
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COLOR_ENUM = {
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"Aqua": [000, 255, 255],
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"Black": [000, 000, 000],
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"Blue": [000, 000, 255],
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"Purple": [255, 000, 255],
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"Green": [000, 255, 000],
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"Red": [255, 000, 000],
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"White": [255, 255, 255],
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"Yellow": [255, 255, 000]
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}
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class rgb_led():
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def __init__(self):
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self.LED_COUNT = 4 # Number of LED pixels.
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self.LED_PIN = 18
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self.LED_FREQ_HZ = 800000
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self.LED_DMA = 5
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self.LED_BRIGHTNESS = 255 # Set to 0 for darkest and 255 for brightest
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self.LED_INVERT = False
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self.LED_CHANNEL = 0
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self.strip = Adafruit_NeoPixel(
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self.LED_COUNT, self.LED_PIN, self.LED_FREQ_HZ,
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self.LED_DMA, self.LED_INVERT, self.LED_BRIGHTNESS)
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self.strip.begin()
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def color(self, N, R, G, B):
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if (N < 4 and N > -1):
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self.strip.setPixelColor(N, Color(R, G, B))
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self.strip.show()
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def color(self, N, C):
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if (N < 4 and N > -1):
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self.strip.setPixelColor(N, Color(COLOR_ENUM[C][0],
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COLOR_ENUM[C][1], COLOR_ENUM[C][2]))
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self.strip.show()
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class line_sensor():
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def __init__(self):
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self.CS = 5
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self.Clock = 25
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self.Address = 24
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self.DataOut = 23
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self.Button = 7
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self.numSensors = 5
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self.calibratedMin = [0] * self.numSensors
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self.calibratedMax = [1023] * self.numSensors
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self.last_value = 0
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GPIO.setmode(GPIO.BCM)
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GPIO.setwarnings(False)
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GPIO.setup(self.Clock, GPIO.OUT)
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GPIO.setup(self.Address, GPIO.OUT)
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GPIO.setup(self.CS, GPIO.OUT)
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GPIO.setup(self.DataOut, GPIO.IN, GPIO.PUD_UP)
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GPIO.setup(self.Button, GPIO.IN, GPIO.PUD_UP)
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def AnalogRead(self):
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value = [0]*(self.numSensors+1)
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# Read Channel0~channel6 AD value
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for j in range(0, self.numSensors+1):
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GPIO.output(self.CS, GPIO.LOW)
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for i in range(0, 4):
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# sent 4-bit self.Address
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if(((j) >> (3 - i)) & 0x01):
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GPIO.output(self.Address, GPIO.HIGH)
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else:
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GPIO.output(self.Address, GPIO.LOW)
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# read MSB 4-bit data
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value[j] <<= 1
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if(GPIO.input(self.DataOut)):
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value[j] |= 0x01
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GPIO.output(self.Clock, GPIO.HIGH)
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GPIO.output(self.Clock, GPIO.LOW)
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for i in range(0, 6):
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# read LSB 8-bit data
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value[j] <<= 1
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if(GPIO.input(self.DataOut)):
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value[j] |= 0x01
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GPIO.output(self.Clock, GPIO.HIGH)
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GPIO.output(self.Clock, GPIO.LOW)
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time.sleep(0.0001)
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GPIO.output(self.CS, GPIO.HIGH)
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return value[1:]
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class CameraAngle:
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# Registers/etc.
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__SUBADR1 = 0x02
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__SUBADR2 = 0x03
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__SUBADR3 = 0x04
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__MODE1 = 0x00
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__PRESCALE = 0xFE
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__LED0_ON_L = 0x06
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__LED0_ON_H = 0x07
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__LED0_OFF_L = 0x08
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__LED0_OFF_H = 0x09
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__ALLLED_ON_L = 0xFA
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__ALLLED_ON_H = 0xFB
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__ALLLED_OFF_L = 0xFC
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__ALLLED_OFF_H = 0xFD
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def __init__(self, address=0x40, debug=False):
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self.bus = smbus.SMBus(1)
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self.address = address
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self.debug = debug
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if (self.debug):
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print("Reseting PCA9685")
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self.write(self.__MODE1, 0x00)
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self.setPWMFreq(50)
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def write(self, reg, value):
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"Writes an 8-bit value to the specified register/address"
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self.bus.write_byte_data(self.address, reg, value)
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if (self.debug):
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print("I2C: Write 0x%02X to register 0x%02X" % (value, reg))
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def read(self, reg):
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"Read an unsigned byte from the I2C device"
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result = self.bus.read_byte_data(self.address, reg)
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if (self.debug):
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print("I2C: Device 0x%02X returned 0x%02X from reg 0x%02X" %
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(self.address, result & 0xFF, reg))
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return result
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def setPWMFreq(self, freq):
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"Sets the PWM frequency"
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prescaleval = 25000000.0 # 25MHz
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prescaleval /= 4096.0 # 12-bit
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prescaleval /= float(freq)
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prescaleval -= 1.0
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if (self.debug):
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print("Setting PWM frequency to %d Hz" % freq)
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print("Estimated pre-scale: %d" % prescaleval)
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prescale = math.floor(prescaleval + 0.5)
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if (self.debug):
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print("Final pre-scale: %d" % prescale)
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oldmode = self.read(self.__MODE1)
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newmode = (oldmode & 0x7F) | 0x10 # sleep
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self.write(self.__MODE1, newmode) # go to sleep
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self.write(self.__PRESCALE, int(math.floor(prescale)))
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self.write(self.__MODE1, oldmode)
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time.sleep(0.005)
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self.write(self.__MODE1, oldmode | 0x80)
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def setPWM(self, channel, on, off):
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"Sets a single PWM channel"
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self.write(self.__LED0_ON_L+4*channel, on & 0xFF)
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self.write(self.__LED0_ON_H+4*channel, on >> 8)
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self.write(self.__LED0_OFF_L+4*channel, off & 0xFF)
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self.write(self.__LED0_OFF_H+4*channel, off >> 8)
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if (self.debug):
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print("channel: %d LED_ON: %d LED_OFF: %d" % (channel, on, off))
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def setServoPulse(self, channel, pulse):
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"Sets the Servo Pulse,The PWM frequency must be 50HZ"
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# PWM frequency is 50HZ,the period is 20000us
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pulse = int(pulse*4096/20000)
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self.setPWM(channel, 0, pulse)
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def setCameraAngle(self, verticalAngle, horizontalAngle):
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if (verticalAngle > 180):
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verticalAngle = 180
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if (verticalAngle < 0):
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verticalAngle = 0
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if (horizontalAngle > 180):
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horizontalAngle = 180
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if (horizontalAngle < 0):
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horizontalAngle = 0
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va = verticalAngle * 2000 / 180 + 500
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vh = horizontalAngle * 2000 / 180 + 500
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self.setServoPulse(0, va)
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self.setServoPulse(1, vh)
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if __name__ == '__main__':
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l = line_sensor()
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while True:
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print(l.AnalogRead())
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time.sleep(0.2) |