Update 'Follow_the_line/Programs /Follow_line_intensity_reflected_light.py'
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#!/usr/bin/env python3
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from time import sleep
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import ev3dev2 as ev3
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from ev3dev2.motor import Motor, SpeedPercent, OUTPUT_A, OUTPUT_B, OUTPUT_C, OUTPUT_D
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from ev3dev2.sensor import INPUT_1,INPUT_2,INPUT_3,INPUT_4
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from ev3dev2.sensor.lego import ColorSensor
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from ev3dev2.led import Leds
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# Define all inputs and outputs of the Robot
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# Sensors are inputs
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cs_right = ColorSensor(INPUT_4)
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cs_left = ColorSensor(INPUT_2)
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# Motors are outputs
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m_left = Motor(OUTPUT_A)
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m_right = Motor(OUTPUT_D)
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leds = Leds()
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# The motor is initialized to run counter-clockwise (gegen den Uhrzeigersinn)
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m_right.polarity = 'inversed' # use 'normal' to initialize it to run clockwise (im Uhrzeigersinn)
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m_left.polarity = 'inversed'
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# Defined inputs for the given experiment / enviroment
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Line = 3 # min. reflection meassured of line
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Floor = 35 # max. reflection meassured of floor
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max_speed_percent = 40 # maximum wanted speed percentage (highest possible value 100%)
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# calculate range
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range = (Floor - Line)
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# while-loop: the robot drives as long as the programm is not stopped
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while True:
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# the detected intensity of the two colorsensors are measured
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cs_r_intensity = cs_right.reflected_light_intensity
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cs_l_intensity = cs_left.reflected_light_intensity
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# calculate percentage of intensity from given range
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cs_r_percent = (cs_r_intensity - Line) / range
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cs_l_percent = (cs_l_intensity - Line) / range
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# calculation percantage of driving speed, depending on maximum speed percentage
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m_l_speed_percent= max_speed_percent*cs_l_percent
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m_r_speed_percent= max_speed_percent*cs_r_percent
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# make sure percentage is not higher than possible (100%) and signal it through lights
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if m_l_speed_percent > 100:
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m_l_speed_percent = 0
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leds.set_color("LEFT", "AMBER")
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else:
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leds.set_color("LEFT", "GREEN")
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if m_r_speed_percent > 100:
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m_r_speed_percent = 0
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leds.set_color("RIGHT", "AMBER")
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else:
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leds.set_color("RIGHT", "GREEN")
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# the motors drive with the calculated speed
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m_left.on(SpeedPercent(m_l_speed_percent))
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m_right.on(SpeedPercent(m_r_speed_percent))
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sleep(0.3)
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#!/usr/bin/env python3
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from time import sleep
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import ev3dev2 as ev3
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from ev3dev2.motor import Motor, SpeedPercent, OUTPUT_A, OUTPUT_B, OUTPUT_C, OUTPUT_D
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from ev3dev2.sensor import INPUT_1,INPUT_2,INPUT_3,INPUT_4
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from ev3dev2.sensor.lego import ColorSensor
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from ev3dev2.led import Leds
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# Define all inputs and outputs of the Robot
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# Sensors are inputs
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cs_right = ColorSensor(INPUT_4)
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cs_left = ColorSensor(INPUT_2)
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# Motors are outputs
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m_left = Motor(OUTPUT_A)
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m_right = Motor(OUTPUT_D)
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leds = Leds()
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# The motor is initialized to run counter-clockwise (gegen den Uhrzeigersinn)
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m_right.polarity = 'inversed' # use 'normal' to initialize it to run clockwise (im Uhrzeigersinn)
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m_left.polarity = 'inversed'
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# Defined inputs for the given experiment / enviroment
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Line = 2 # min. reflection meassured of line
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Floor = 30 # max. reflection meassured of floor
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max_speed_percent = 45 # maximum wanted speed percentage (highest possible value 100%)
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# calculate range
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range = (Floor - Line)
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# while-loop: the robot drives as long as the programm is not stopped
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while True:
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# the detected intensity of the two colorsensors are measured
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cs_r_intensity = cs_right.reflected_light_intensity
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cs_l_intensity = cs_left.reflected_light_intensity
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# calculate percentage of intensity from given range
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cs_r_percent = (cs_r_intensity - Line) / range
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cs_l_percent = (cs_l_intensity - Line) / range
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# calculation percantage of driving speed, depending on maximum speed percentage
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m_l_speed_percent= max_speed_percent*cs_l_percent
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m_r_speed_percent= max_speed_percent*cs_r_percent
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# make sure percentage is not higher than possible (100%) and signal it through lights
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if m_l_speed_percent > 100:
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m_l_speed_percent = 0
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leds.set_color("LEFT", "AMBER")
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else:
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leds.set_color("LEFT", "GREEN")
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if m_r_speed_percent > 100:
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m_r_speed_percent = 0
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leds.set_color("RIGHT", "AMBER")
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else:
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leds.set_color("RIGHT", "GREEN")
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# the motors drive with the calculated speed
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m_left.on(SpeedPercent(m_l_speed_percent))
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m_right.on(SpeedPercent(m_r_speed_percent))
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sleep(0.3)
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