Adafruit EMC2101 I2C PC Fan Controller and Temperature Sensor

Cooling fans are essential for maintaining optimal temperatures in electronics. The EMC2101 from Microchip/SMSC is a fan controller with precise temperature monitoring, eliminating the complexities of 3 or 4-pin connectors.

Key features include a programmable PWM output, tachometer input, and a 1°C accuracy temperature sensor. It supports both internal and external temperature sensing, adjusting fan speeds automatically via an I2C interface.

The device allows seamless integration of standard PC fans, making it perfect for reducing noise and enhancing ventilation. A programmable lookup table offers customized fan speed adjustments based on temperature variations.

The Adafruit EMC2101 breakout is designed for ease of use with Stemma QT connections, compatible with both 3.3V and 5V microcontrollers. The board facilitates solderless connections, complemented by comprehensive support materials for Arduino, CircuitPython, and Python environments.