# Initialize sensor to make sure we're in the expected mode.
color_sensor.color()
wait(500)
# Color angle targets
angles = {
"GREEN": 20,
"BLUE": 110,
"RED": 200,
"YELLOW": 290,
"BLACK": 250,
"WHITE": 75,
"NONE": 162,
}
# Go to blue and assert that we really do see blue.
motor.run_target(SPEED, angles["BLUE"])
assert color_sensor.color() == Color["BLUE"]
# Read ambient light, causing a mode change.
color_sensor.ambient()
wait(3000)
# Go to red and read the color right away.
motor.run_target(SPEED, angles["RED"])
detected = color_sensor.color()
# With the built-in delay, the stale blue value should be gone, now giving red.
assert detected == Color["RED"], "Expected {0} but got {1}".format(Color["RED"], detected)
from pybricks.pupdevices import ColorSensor
from pybricks.parameters import Port
from pybricks.tools import wait
# Initialize the sensor.
sensor = ColorSensor(Port.A)
# Repeat forever.
while True:
# Get the ambient color values. Instead of scanning the color of a surface,
# this lets you scan the color of light sources like lamps or screens.
hsv = sensor.hsv(surface=False)
color = sensor.color(surface=False)
# Get the ambient light intensity.
ambient = sensor.ambient()
# Print the measurements.
print(hsv, color, ambient)
# Point the sensor at a computer screen or colored light. Watch the color.
# Also, cover the sensor with your hands and watch the ambient value.
# Wait so we can read the printed line
wait(100)
# SPDX-License-Identifier: MIT
# Copyright (c) 2021 The Pybricks Authors
"""
Hardware Module: 1
Description: Verify that ambient() and reflection() refuse an argument.
"""
from pybricks.pupdevices import ColorSensor
from pybricks.parameters import Port
# Initialize device.
color_sensor = ColorSensor(Port.B)
# Get the ambient light intensity to verify that the default works.
ambient_light_default = color_sensor.ambient()
# verify an argument passed to ambient is correctly refused.
expected = "function doesn't take keyword arguments"
try:
ambient_light_surface_true = color_sensor.ambient(surface=True)
except Exception as e:
assert str(e) == expected, "Expected '{0}' == '{1}'".format(e, expected)
# Get the reflected light intensity to verify that the default works.
reflection_default = color_sensor.reflection()
# verify an argument passed to reflection is correctly refused.
expected = "function doesn't take keyword arguments"
try:
reflection_surface_true = color_sensor.reflection(surface=True)