Template: CM4-DUAL-ETH-MINI User Guide

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User Guide

Note

Do not plug or unplug any device while it is powered on.

Image Programming

FAN

  • This simple demo can control the fan automatically, which also will read the CPU temperature and automatically adjust.
  • Install the library:
sudo apt-get update
sudo apt-get install python-pip
sudo pip install RPi.GPIO

or

sudo apt-get update
sudo apt-get install python3-pip
sudo pip3 install RPi.GPIO
  • Example program download:
wget https://files.waveshare.com/upload/e/ee/CM4-DUAL-ETH-MINI-Example.zip
unzip CM4-DUAL-ETH-MINI-Example.zip -d ./CM4-DUAL-ETH-MINI-Example
cd CM4-DUAL-ETH-MINI-Example/FAN/
  • Run
python main.py

or

python3 main.py
  • (Optional) Auto startup:
sudo nano /etc/rc.local

Add (../ please change to the path of your own file) before the last line 'exit 0': 

python ../main.py

or

python3 ../main.py

Network Card

  • The new version of the Raspberry Pi system kernel integrates the driver of RTL8111H, if you can't find the network card, you can try to upgrade the software package:
sudo apt update
sudo apt upgrade
  • If using another version of the system, please install the driver:
wget https://files.waveshare.com/upload/e/ee/CM4-DUAL-ETH-MINI-Example.zip
unzip CM4-DUAL-ETH-MINI-Example.zip -d ./CM4-DUAL-ETH-MINI-Example
cd CM4-DUAL-ETH-MINI-Example/Driver/
tar vjxf r8168-8.050.03.tar.bz2
cd r8168-8.050.03
sudo ./autorun.sh
  • (Optional) If you compile the kernel yourself, you can choose the following options to load the driver:
Device Drivers
 > Network device support
   > Ethernet driver support
     > Realtek devices
       > Realtek 8169/8168/8101/8125 ethernet support
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