from pybricks.pupdevices import ColorSensor
from pybricks.parameters import Port, Color
from pybricks.tools import wait
# Initialize the sensor.
sensor = ColorSensor(Port.A)
# Here we choose only red, yellow, green, and blue, and provide the hues.
hues = {Color.RED: 350, Color.YELLOW: 30, Color.GREEN: 110, Color.BLUE: 210}
# Save the updated settings. The values dictionary is empty because we don't
# need to detect black/white in this demo application.
sensor.color_map(hues, 30, {})
# color() works as usual, but it only returns red/yellow/green/blue, or None.
# This avoids accidentally detecting black on the dark gray train tracks.
while True:
print(sensor.color())
wait(100)
from pybricks.pupdevices import ColorSensor
from pybricks.parameters import Port
from pybricks.tools import wait
# Initialize the sensor.
sensor = ColorSensor(Port.A)
# Show the default color map.
print(sensor.color_map())
while True:
# Read the HSV values.
h, s, v = sensor.hsv()
# Read the corresponding color based on the existing settings.
color = sensor.color()
# Print the measured values.
print("Hue:", h, "Sat:", s, "Val:", v, "Col:", color)
# Wait so we can read the value.
wait(100)
from pybricks.pupdevices import ColorSensor
from pybricks.parameters import Port, Color
from pybricks.tools import wait
# Initialize the sensor.
sensor = ColorSensor(Port.A)
# Get the current color settings.
hues, saturation, values = sensor.color_map()
# Let's say we have used the hsv() method to determine
# that the orange hue is 10. We can add it like this.
hues[Color.ORANGE] = 10
# Also, let's say that we are not interested in blue.
# So, we remove it from the hues dictionary.
hues.pop(Color.BLUE)
# Now save the new settings
sensor.color_map(hues, saturation, values)
# Now use the color() method as usual. Now it can also detect ORANGE
# and it will not report BLUE, because we removed it from the hues.
while True:
print(sensor.color())
wait(100)
