adafruit learning system EMC2101 Fan Controller and Temperature Sensor Instruction Manual
Learn how the EMC2101 Fan Controller and Temperature Sensor can help keep your electronics cool with its programmable PWM output and tachometer input. This Microchip/SMSC product includes an internal temperature sensor and connections for an external temperature sensing diode, making it a perfect fit for any 3 or 4-pin PC fan. With a 1°C accuracy, this chip can even help reduce vibration noise caused by fans running at full speed.