wedo2py-rpi5 1.0.1

LEGO WeDo 2.0 BLE control library for Raspberry Pi using Bleak

wedo2py-rpi5 - LEGO WeDo 2.0 BLE Python Library

Control LEGO WeDo 2.0 over Bluetooth Low Energy (BLE) using Python and the Bleak library. This package is designed primarily for Raspberry Pi 5 / Raspberry Pi OS Bookworm, but works on most modern Linux systems with BLE support.

Features

• Motor control (Port A / B)
• Tilt sensor (read orientation)
• Distance / Motion sensor
• LED color control
• Piezo / Sound tones
• Battery level readout
• GATT-based BLE communication (Bleak)

Requirements

• Python 3.9+
• Linux with BlueZ + Bluetooth LE
• Recommended device: Raspberry Pi 5
• BLE library: Bleak

Installation

1. Install System Dependencies (Raspberry Pi)

sudo apt update
sudo apt install bluetooth bluez python3-dbus

2. Create and Activate a Virtual Environment

python3 -m venv venv
source venv/bin/activate

3. Install the Package

pip install --upgrade pip
pip install wedo2py-rpi5

Note: Running outside a virtual environment may cause errors like:

• error: externally-managed-environment
• ModuleNotFoundError: No module named 'bleak'

Quick Example

from wedo2python.app import WeDo2Python

hub = WeDo2Python("AA:BB:CC:DD:EE:FF")  # Replace with your WeDo Hub MAC
hub.connect()

hub.set_color("green")
hub.motor_this_way(hub.port("B"))
hub.set_motor_power(hub.port("B"), 60)
hub.motor_on(hub.port("B"))

hub.disconnect()

LED Colors Supported

Name	Value
off	0
pink	1
purple	2
blue	3
lightblue	4
cyan	5
green	6
yellow	7
orange	8
red	9
white	10

Motor Example

hub.motor_this_way(hub.port("B"))      # direction right
hub.motor_that_way(hub.port("B"))      # direction left
hub.set_motor_power(hub.port("B"), 80) # power 0�100
hub.motor_on(hub.port("B"))
hub.motor_off(hub.port("B"))

Tilt Sensor

hub.tilt_sensor(hub.port("A"))
tilt = hub.read_tilt_value()
print(tilt)

Distance Sensor

hub.distance_sensor(hub.port("A"))
dist = hub.read_distance_value()
print(dist, "cm")

Sound (Piezo Tone)

The hub supports 16 internal tones:

hub.sound(1)   # tone A
hub.sound(12)  # tone cSH
hub.sound(16)  # long tone
hub.sound_off()

Full List of Tones

Tone ID	Description
1	A
2	F
3	cH
4	A (1000Hz)
5	eH
6	fH
7	gS
8	fS
9	G
10	aS
11	dH
12	cSH
13	B
14	fSH
15	A (500Hz)
16	cH (Long)

Finding the Hub's MAC Address

bluetoothctl
scan on

Example output:

LEGO Hub 04:EE:03:16:ED:1D

Troubleshooting

Issue	Solution
Cannot connect	Restart Hub, press button until LED flashes
Works once then disconnects	Wait 3 seconds before next connection
Motor doesn't run	Check correct port A/B
Tilt sensor gives wrong value	Ensure tilt sensor is on Port A
BLE permission denied	Run: sudo usermod -a -G bluetooth $USER && reboot

License

This project is licensed under the Apache 2.0 License.

Credits

Developed by Evangelia Anastasaki
BLE Python library for LEGO WeDo 2.0, optimized for Raspberry Pi 5.

Project Links

• ?? PyPI Project