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Powered Up Device

class PUPDevice(port)

Powered Up motor or sensor.

Parameters

port (Port) – Port to which the device is connected.

info() → Dict

Gets information about the device.

Returns

Dictionary with information, such as the device id.

read(mode) → Tuple

Reads values from a given mode.

Parameters

mode (int) – Device mode.

Returns

Values read from the sensor.

write(mode, data)

Writes values to the sensor. Only selected sensors and modes support this.

Parameters

• mode (int) – Device mode.

• data (tuple) – Values to be written.

Examples

Detecting devices

from pybricks.iodevices import PUPDevice
from pybricks.parameters import Port
from uerrno import ENODEV

# Dictionary of device identifiers along with their name.
device_names = {
    34: "Wedo 2.0 Tilt Sensor",
    35: "Wedo 2.0 Infrared Sensor",
    37: "BOOST Color Distance Sensor",
    38: "BOOST Interactive Motor",
    46: "Technic Large Motor",
    47: "Technic Extra Large Motor",
    48: "SPIKE Medium Angular Motor",
    49: "SPIKE Large Angular Motor",
    61: "SPIKE Color Sensor",
    62: "SPIKE Ultrasonic Sensor",
    63: "SPIKE Force Sensor",
    75: "Technic Medium Angular Motor",
    76: "Technic Large Angular Motor",
}

# Make a list of known ports.
ports = [Port.A, Port.B]

# On hubs that support it, add more ports.
try:
    ports.append(Port.C)
    ports.append(Port.D)
except AttributeError:
    pass

# On hubs that support it, add more ports.
try:
    ports.append(Port.E)
    ports.append(Port.F)
except AttributeError:
    pass

# Go through all available ports.
for port in ports:

    # Try to get the device, if it is attached.
    try:
        device = PUPDevice(port)
    except OSError as ex:
        if ex.args[0] == ENODEV:
            # No device found on this port.
            print(port, ": ---")
            continue
        else:
            raise

    # Get the device id
    id = device.info()["id"]

    # Look up the name.
    try:
        print(port, ":", device_names[id])
    except KeyError:
        print(port, ":", "Unknown device with ID", id)