For teaching, the goals of the IOT project framework based on Armbian and Python languages
:
1. Log in to the Jupyter service in one step (based on RNDIS driver-free);
2. Learn Python programming and quickly develop Python-based IOT Internet of Things projects;
3. Learn standard Linux operations System;
4. Use Python to call GPIO/Sensor hardware;
5. Built-in Siot LAN MTQQ protocol;
6. Built-in OpecnCV;
Note: OrangePi Zero/NanoPi Neo (based on Allwinner H2+/H3 core) has been verified so far

Get started quickly with PythonIOT

Teaching goals: experience the Linux operating system (terminal command line), learn Python programming (based on Jupyter ), Internet of Things hardware programming ( Siot/MQTT ), network communication principle experiments, OpenCV face recognition, etc.

1. 45- minute quick introduction

Run the first command line command, run the first Python code, run the first hardware project ( one light, one button , OLED display). The entire training is controlled within 30 minutes, leaving 15 minutes for practical operation, exploration and communication. .

1.1 Connect to PC via USB cable and wait for the driver to be automatically installed;

1. Win system usually does not require driver. In some cases, it will be recognized as a COM port, and the driver needs to be updated manually. First download the driver, run the fifth CMD file ( http://www.qudong51.net/qudong/540.html ) as an administrator , and then install the driver on the device. Double-click the COM port recognized by the USB serial port in the manager and select Computer to find and update the driver. (see appendix)

2. For Linux -compatible systems such as Ubuntu , X86 is automatically installed and verified.

3. Install HoRNDIS-9.2.pkg on Mac system , download address https://joshuawise.com/horndis , and pass the test.

1.2 Enter http://pythoniot.local in the browser to enter the jupyter interface, password: 1950

Note : The startup is slow for the first time. Just press RESET to restart the system. There is no need to repeat the above process for future uses.

1.3 01_Helloworld.ipynb asks where the world is

1.4 02_helloLED.ipynb Yideng Master

1.5 03_Maths_plot.ipynbI draw, I draw

1.6 04_Face DetectionOpenCV​

1.7 05_camera_detector camera recognition OpenCV

1.8 06_oled12864display​

1.9 Enter the terminal command line and log in via ssh : root ; 1950

1.10 Configure Wi-Fi wireless network

root@ist:/# sudo su

root@ist:/# nmtui

1. Edit connection → enable connection

1.11 Built-in cases and games (to be improved)

Choose one of the cases below as a guide for getting started.

1. Top 10 Command Line Games For Linux

sudo apt install bastet Tetris

sudo apt-get install nsnake greedy snake

2. Interesting command lines of Linux

    https://zhuanlan.zhihu.com/p/128057151

https://www.cnblogs.com/hgmyz/p/12351022.html

https://blog.csdn.net/sinat_38682860/article/details/103056558

40 Super Fun Linux Command Line Easter Eggs and Games

https://blog.csdn.net/qq_32523587/article/details/84960304

2. Teaching and research activities

3. A Case Study in People’s Education Compulsory Course

sudo apt update

sudo apt install python3-pandas python3-sklearn git

pip3 install wordcloud jieba itchat pyfirmata siot

3.1Physique test

3.2 Find prime numbers

3.3 Water consumption

3.4 GDP statistics

4. mosquitto Internet of Things

https://www.jianshu.com/p/37f7ee7ead65

An open source message broker software that implements the message push protocol MQTT v3.1 , provides lightweight, supports publishable / subscribeable message push mode, and makes short message communication between devices simple, such as now Low-power sensors are widely used in mobile devices such as mobile phones, embedded computers, and microcontrollers.

4.1Introduce mosquitto warehouse and update

#Note that this step cannot be ignored

sudo apt-add-repository ppa:mosquitto-dev/mosquitto-ppa

sudo apt-get update

4.2 Execute the following command to install the mosquitto package

sudo apt-get install mosquitto

4.3 Install mosquitto development package

sudo apt-get install mosquitto-dev

4.4 Install mosquitto client

sudo apt-get install mosquitto-clients

4.5 Check whether mosquitto is running correctly

sudo service mosquitto status

status running results:

4.6 Local testing

#Open a terminal and execute the following command to subscribe to the topic "mqtt"

mosquitto_sub -h localhost -t "mqtt" -v

#Open another terminal and publish messages to the topic "mqtt"

mosquitto_pub -h localhost -t "mqtt" -m "Hello MQTT"

#Now you will see the message being displayed on the previous terminal .

4.7 Network Test ( test.mosquitto.org )

#Through the following command, you can schedule all test mqtt information to be released to the official website. Of course, others can also subscribe to the information you publish.

mosquitto_sub -h test.mosquitto.org -t "#" -v

#You can also publish your own exclusive information under the official mqtt service

mosquitto_sub -h test.mosquitto.org -t "myxyz123" -v

#Subscribe to your own information

mosquitto_pub -h test.mosquitto.org -t "myxyz123" -m "hello mqtt"

test.mosquitto.org supports encrypted and unencrypted MQTT message modes, and also supports using TCP or Websocket as a bearer. Different packet formats can be observed through wireshark packet capture .

Attachment: Win driver installation

The usb rndis driver under Win will be recognized as a COM port by default, and the driver needs to be updated manually.

1. First download kindle_rndis.inf_amd64-v1.0.0.1 , http://www.qudong51.net/qudong/540.html ;

2. Then run the fifth cmd file as administrator ;

3. Double-click the COM port recognized by the USB serial port in the device manager and search for the driver on the computer, that is, download the unzipped folder;

4. Wait for the installation of the RNDIS driver in the network adapter to be completed.