Fan HAT

From Waveshare Wiki
Jump to: navigation, search
Fan HAT
Fan HAT

PWM Controlled Fan HAT For Raspberry Pi, I2C Bus, PCA9685 Driver, Temperature Monitor
{{{name2}}}

{{{name3}}}

{{{name4}}}

{{{name5}}}

Primary Attribute
Category:
{{{userDefinedInfo}}}: {{{userdefinedvalue}}}
Brand: Waveshare
Website
English: Website
Chinese: 中文网站
Onboard Interfaces
I2C RPi
Related Products

Introduction

This is a PWM controlled Fan HAT, which is designed for Raspberry Pi, I2C Bus, PCA9685 driver, it can be used as a temperature monitor as well.

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
  • Adopts 3007 size PWM controlled fan, up to 8000rpm speed, brings 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, better cooling effect

Specifications

  • Operating voltage: 5V
  • Logic level: 3.3V
  • Driver: PCA9685
  • Interface: I2C
  • Fan PWM driver duty cycle: ≥25%
  • Fan RPM (max): 8000 RPM
  • OLED driver: SSD1306
  • OLED resolution: 128×32
  • OLED display color: White
  • OLED FOV: > 160°
  • Mounting holes: 3.0mm

About board

Fan-HAT-9 960.jpg

  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. 0.91inch OLED display

Pinout

Fan-HAT-11 960.jpg

Relationiship of temperature and Fan speed

Fan-HAT-5 960.jpg

Example

Hardware connection

First at all, please connect the Fan HAT to Raspberry Pi by attaching it on the 40PIN GPIO
The standoffs and screws can be sued to hold the Fan HAT in another side.
Fan-HAT-5.jpg

Libraries installation

Libraries Installation for RPi

Open the terminal of Raspberry Pi and install libraries as guides below

Install WiringPi Library

cd
sudo apt-get install wiringpi
wget https://project-downloads.drogon.net/wiringpi-latest.deb
sudo dpkg -i wiringpi-latest.deb
gpio -v

Install C Library bcm2835

cd
wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.60.tar.gz
tar zxvf bcm2835-1.60.tar.gz 
cd bcm2835-1.60/
sudo ./configure
sudo make && sudo make check && sudo make install

For more information and the newest libraries please refer to website:http://www.airspayce.com/mikem/bcm2835/

Install Python Library

sudo pip3 install pillow
sudo pip3 install numpy
sudo apt-get install libopenjp2-7
sudo apt install libtiff
sudo apt install libtiff5
sudo apt-get install libatlas-base-dev
For python2
cd
sudo apt-get update
sudo apt-get install python-pip
sudo pip install RPi.GPIO
For python3
cd
sudo apt-get update
sudo apt-get install python3-pip
sudo pip3 install RPi.GPIO

Download example

Open the terminal and run the following commands to download example

cd
sudo apt-get install p7zip-full
wget https://www.waveshare.com/w/upload/0/06/Fan_HAT.7z
7z x Fan_HAT.7z  -r -o./Fan_HAT

Run the example

C
cd
cd Fan_HAT/c/
make clean 
make
sudo ./main
Python
cd
cd Fan_HAT/python/
sudo python main.py

Run when booting

Modify rc.local script

sudo nano /etc/rc.local

Add the lines below to the script, you need to set them in the front of exit 0

fi
sudo /home/pi/Fan_HAT/c/main &
#exit 0

Resources

Documents

Example

Support

Please contact us by Email/Skype/WeChat for technology support.Our response may be delay, you can just leave your questions, we will reply to you as soon as possible in working time.

Service email.png [email protected]
Service skype.png [email protected]
Service wechat.png Webchat Linzeru.png
Service time.png 09:00 - 18:00 (UTC+8 Monday to Staturday)