Changes between Version 2 and Version 3 of Tutorials/Wireless/education-toolkit-sb1
- Timestamp:
- Sep 22, 2020, 1:51:14 AM (4 years ago)
Legend:
- Unmodified
- Added
- Removed
- Modified
-
Tutorials/Wireless/education-toolkit-sb1
v2 v3 45 45 46 46 === Experiment Execution === 47 After setting up the nodes, we can now start exploring the K--12 wireless labs. To run the experiments we use a web friently interface 47 After setting up the nodes, we can now start exploring the K--12 STEM educational labs. To run the experiments we have developed a user-friendly web interface based on HTML and CSS, and back-end web-server developed in python that will control 48 and orchestrate the experiments. 48 49 49 To execute the experiment and use the web framework you need to connect to the cosmos-sb1 and enable 50 the HTTP port forwarding by using the following command: 50 To visualize the front-end web interface we need to forward the port 80 of the remote node to the local host. For the sdr2-s1-lg1 we will use port 8081, while for the sdr2-md1 we will use the 8082. To communicate with the back-end server we need to forward the port 8090 of the remote node to the local host. For the sdr2-s1-lg1 we will use port 8091, while for the sdr2-md1 we will use the 8092. Some of the experiments require to use audio at the transmitter or the receiver, for this purpose we create a TCP socket at port 8100 of the remote node. To forward port 8100 we will use port 8101 for the sdr2-s1-lg1, and port 8102 for sdr2-md1. At the host computer we developed a very simple python program that is attached at the bottom of the page. The program connects to the server that is running at the remote node, and outputs the received data to the local audio card. 51 52 Almost all the GNU Radio experiments require the use of a QT GUI. For this reason, when you are connecting to sb1 and the node you should use either the -X or -Y option. This will forward the X-Server from the remote node to the local node. 53 54 In order to to enable the port and X-Server forwarding for the sdr2-s1-lg1 you need to open a new terminal and execute the following commands: 51 55 {{{#!shell-session 52 not_a_user@laptop:~$ ssh -Y your_username@console.sb1.cosmos-lab.org 8080:sdr2-s1-lg1:80 8090:sdr2-s1-lg1:8090 8100:sdr2-s1-lg1:810056 not_a_user@laptop:~$ ssh -Y your_username@console.sb1.cosmos-lab.org -L 8081:sdr2-s1-lg1:80 -L 8091:sdr2-s1-lg1:8090 -L 8101:sdr2-s1-lg1:8100 53 57 your_username@console:~$ ssh -Y root@sdr2-s1-lg1 54 58 }}} 55 59 56 Now in you need to open a new ssh session in order to enable the HTTP forwarding for the sdr2-md1 57 60 In order to to enable the port and X-Server forwarding for the sdr2-md1 you need to open a new terminal and execute the following commands: 58 61 {{{#!shell-session 59 not_a_user@laptop:~$ ssh -Y your_username@console.sb1.cosmos-lab.org 8082:sdr2-s1-lg1:80 8092:sdr2-s1-lg1:8090 8102:sdr2-s1-lg1:810062 not_a_user@laptop:~$ ssh -Y your_username@console.sb1.cosmos-lab.org -L 8082:sdr2-md1:80 -L 8092:sdr2-md1:8090 -L 8102:sdr2-md1:8100 60 63 your_username@console:~$ ssh -Y root@sdr2-md1 61 64 }}} 65 66 Now you are ready to start exploring the COSMOS K--12 educational labs. To connect to the web interface of sdr2-s1-lg1 press the following link [https://localhost:8081], and to connect to the web interface of sdr2-md1 press the following link [https://localhost:8081]
