Mikroe Fan 8 Click features the Maxim Integrated MAX6615 fan-speed controller and a dual-channel temperature monitor. The MAX6615 has external thermistor inputs and controls the speed of two cooling fans. It's based on the temperatures of external thermistors and the device's internal temperature, reporting temperature values in a digital form using the I2C serial interface. The temperature data controls a PWM output signal to adjust the speed of a cooling fan, minimizing noise when the system is running cool. It also provides maximum cooling when power dissipation increases. It features an overtemperature alarm to generate interrupts, throttle, or shutdown signals.