raspberry pi 4

This Tutorial is for setting virtual environment of raspberry pi4

rotate screen

add this to the /boot/config.txt

    display_rotate = 0 #default
    display_rotate = 1 #rotate 90 degrees
    display_rotate = 2 #rotate 180 degrees
    display_rotate = 3 #rotate 270 degrees

以下為操作虛擬環境

raspberry pi 在裝套件的過程中很容易產生很多不可預期的問題，因此在這邊為了避免一些安裝上面的問題，所以在這邊會做紀錄讓大家能方便安裝

操作前務必要

進入sudo(重要!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!)

sudo su -  
sudo apt-get update && sudo apt-get upgrade

virtualenv

pip3 install virtualenv

opencv

sudo apt install libqt4-test
sudo apt-get install -y festival python-dev python-opencv python-pip x11vnc liblivemedia-dev libv4l-dev cmake python-matplotlib vlc libatlas-base-dev libjasper-dev libqtgui4 python3-pyqt5
pip3 install opencv-python
pip3 install opencv-contrib-python==4.1.0.25

PyQt5

pip3 install vext.PyQt5

Keras

pip3 install keras

tensorflow

pip3 install tensorflow

PIL

pip3 install Pillow

tinkerforge

pip3 install tinkerforge

pygame

pip3 install pygame

熱感應 Thinkerforge

https://www.tinkerforge.com/en/doc/Downloads.html#downloads-tools
下載 Brick Daemon  ==> Unix(armhf)
下載 Brick Viewer  ==> Linux

注意事項

1. 調整Mem for GPU 在2G最大600，超過會無法顯示
2. 上述的install，如果是預設python是指python3以上那請改成pip

Download python 3.5 environment

wget https://www.python.org/ftp/python/3.5.6/Python-3.5.6.tar.xz
tar xf Python-3.5.6.tar.xz
cd Python-3.5.6
./configure
make
sudo make altinstall

venv

https://docs.python.org/zh-tw/3/tutorial/venv.html

reference

rotate screen https://pimylifeup.com/raspberry-pi-rotate-screen/