This feature-packed fan HAT for the Raspberry Pi includes a PWM programmable fan along with a 0.91" OLED screen for displaying your Raspberry Pi's temperature (or anything else you'd like to display!). The HAT also includes a heatsink set, 16 PWM outputs for controlling other PWM devices and handy pin breakouts. The product Wiki includes example code. Features * PCA9685 PWM driver as the fan controller, powerful driving capability, auto PWM adjustment * 0.91" OLED, 128x32 pixels, displays board temperature or other user-defined content in real-time * PWM controlled fan, up to 8000rpm speed bringing strong airflow * Supports retrieving temperature data in real-time, and then adjusting the speed automatically (programmable configuration) * I2C pins, for connecting other host control boards * 16-ch PWM outputs, for driving other external PWM devices * Comes with heat sinks for even greater cooling Included * 1x Fan HAT * 1x Heatsink set (3 pieces) * 1x Male pin header * 1x Standoff pack What's on board * Standard Raspberry Pi 40PIN GPIO header * PCA9685 PWM driver * 3007 size PWM controlled adjustable fan * PCA9685 I2C address configuration * Reserved I2C control pins * Reserved PCA9685 output channels * 0.91" OLED display Specification * Voltage: 5V * Fan Driver: PCA9685 * Control Bus: I2C * Fan PWM Driver Duty Cycle: >25% * Fan Speed (max): 8000RPM * Logic Level Voltage: 3.3V * OLED Driver: SSD1306 * OLED Resolution: 128x32 * OLED Display Colour: White * OLED Viewing Angle: >160 degrees Resources Product Wiki: https://www.waveshare.com/wiki/FanHAT https://elecena.pl/product/22718954/pwm-controlled-fan-hat-for-raspberry-pi-discontinued 2023-03-07 https://elecena.pl/product/22718954/pwm-controlled-fan-hat-for-raspberry-pi-discontinued 2023-12-27 https://elecena.pl/product/22718954/pwm-controlled-fan-hat-for-raspberry-pi-discontinued 2024-09-19 https://elecena.pl/product/22718954/pwm-controlled-fan-hat-for-raspberry-pi-discontinued 2024-11-29 https://elecena.pl/product/22718954/pwm-controlled-fan-hat-for-raspberry-pi-discontinued 2024-11-30 https://elecena.pl/product/22718954/pwm-controlled-fan-hat-for-raspberry-pi-discontinued 2025-08-05 https://elecena.pl/product/22718954/pwm-controlled-fan-hat-for-raspberry-pi-discontinued 2025-11-28 https://elecena.pl/product/22718954/pwm-controlled-fan-hat-for-raspberry-pi-discontinued 2025-11-29