PWM Controlled Fan HAT for Raspberry Pi

WaveshareSKU: WAV-17951
Sale price £14
incl. VAT
excl. VAT
Only 5 units left

Compatible with:

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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.


  • 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


  • 1x Fan HAT
  • 1x Heatsink set (3 pieces)
  • 1x Male pin header
  • 1x Standoff pack

What's on board

  1. Standard Raspberry Pi 40PIN GPIO header
  2. PCA9685 PWM driver
  3. 3007 size PWM controlled adjustable fan
  4. PCA9685 I2C address configuration
  5. Reserved I2C control pins
  6. Reserved PCA9685 output channels
  7. 0.91" OLED display


  • 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


Product Wiki:

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