Documentation Status Discord Build Status Code Style: Black

CircuitPython driver for EMC2101 brushless fan controller


This driver depends on:

Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle.

Installing from PyPI

On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally from PyPI. To install for current user:

pip3 install adafruit-circuitpython-emc2101

To install system-wide (this may be required in some cases):

sudo pip3 install adafruit-circuitpython-emc2101

To install in a virtual environment in your current project:

mkdir project-name && cd project-name
python3 -m venv .env
source .env/bin/activate
pip3 install adafruit-circuitpython-emc2101

Usage Example

import time
import board
from adafruit_emc2101 import EMC2101

i2c = board.I2C()  # uses board.SCL and board.SDA

emc = EMC2101(i2c)
print("Setting fan speed to 25%")
emc.manual_fan_speed = 25
time.sleep(2)  # longer sleep to let it spin down from 100%
print("Fan speed", emc.fan_speed)


Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.


For information on building library documentation, please check out this guide.

Indices and tables