Technical University of Iasi - Faculty of Automatic Control and Computers
Microprocessor Systems
Experiment nr. 11
  • E11.1 Title:


    • Mobile web server for visual control


  • E11.2 General Presentation, Purpose.


    • The laboratory experiment explores the possibilities of attachinge a unei camere video pentru platformele Raspberry Pi si utilizarea resurselor software pentru dezvoltarea Applicationslor. Este propus si realizat un sistem mobil compus dintr-un sever WEb mobil capabil sa ofere streaming video avand posibilitati de orientare de catre utilizator. Este utilizat un Rpi 4 cu camera video interconectat cu o platform Rpi Pico ce permite orientarea camerei prin intermediul unei pagini Web. At the end of the lab, detailed information will be available despre realizarea paginilor WEB active capabile sa controleze sisteme mobile to remote mobile platforms that can also provide visual control.
    It aims at using the RPi platforms as tools for scientific research and education.


  • E11.3 Resources:


    • Hardware: - Platforma Raspberry 4, Pico platform, mobile system frame from Lab. 10,
    Software : - APACHE , HTML, PHP, Phyton3, Micropyhon






  • E11.4 Surse programe prototip:

    • Viewing and control page for the mobile system

    Subpage - streaming video display

    Subpage for mobile system control
    Actiune tasta Left

    Actiune tasta Forward
    Actiune tasta Right

    Software for mobile system control with RPi Pico
    Software streaming video soket

  • E11.5 Experiment Execution/Monitoring:

    • The RPi4 platform equipped with a video camera is interconnected via the serial interface with the RPi Pico platform, which is mounted on a mobile support equipped with 2 DC motors, as shown in the figure below:

    Install APACHE on the RPi4 and configure with visudo the user "pi" to use sudo without a password and to be the owner of the /www/html directory.

    Disable the BT module connected to ttyAMA0 by adding this directive in the file /bot/config.txt.

    Because the GPIOs for the serial interface ttyAMA0 are not conectate la pinii 8 si 10 are redirected them according to the commands entered in rc.local .
    Use raspi-config to enable the video camera and load the Picamera class on the RPi 4 with the following commands:

    $ sudo apt-get update
    $ sudo apt-get install python-picamera python3-picamera

    The details of building the mobile system are presented in Lab. 10.
  • Rezolvati problemele propuse;

  • E11.6 Proposed Problems:


    • 1. Create an application on the mobile system that will follow a path/outline;
    2. Modify the rotation angle of the mobile system when pressing the Right/Left keys;
    3. Identificati rezolutia maxima/minima a imaginii video;
    4. Analyze how to attach the video camera to a classic microscope;
    5. Develop a Web page solution to rotate the camera vertically.

  • E11.7 The Experiment Can Be Extended To:

    • - Development of tools for scientific research
    - Realizarea Applicationslor de supraveghere a mediilor ostile
    - Cloud data sensor - data acquisition and storage in the cloud
    - Realizare platforme educationale
    - Instrumentatie inteligenta


  • E11.8 Documentary References:


    • © 2023 - Florin Pantilimonescu , Faculty of Automatic Control and Computers