Single-Board-Heater-System/C2/Using-SBHS-Virtual-Labs-on-Windows/English-timed

Time	Narration
00:01	Welcome to the spoken tutorial on Using Single Board heater System Virtual labs on Windows OS.
00:08	In this spoken tutorial, we will learn about: * Software installations required on the remote users' computer
00:15	* Using SBHS website
00:17	* Performing a Step test experiment remotely.
00:21	As a pre-requisite, watch the following tutorials- Introduction to SBHS and Introduction to Xcos.
00:29	These are available on the spoken tutorial website.
00:33	I am recording this tutorial on a Windows-7, 32-bit Operating System.
00:39	Ensure that Scilab is installed on your computer.
00:42	Scilab can be downloaded from sbhs dot os hyphen hardware dot in slash downloads OR www dot scilab dot org.
00:56	Please note that you will need internet connectivity to install Scilab.
01:01	All SBHS experiment Scilab codes are written using Scilab 5.3.3 and is the recommended version.
01:10	A higher version of Scilab will work equally well.
01:14	However, code modified in a higher version of Scilab cannot be re-used in the lower version.
01:22	I have already installed Scilab 5.3.3.
01:26	Now, the next step is to download the experiment Scilab code.
01:31	Open a web browser.
01:33	In the address bar, type: os hyphen hardware dot in and press the Enter key.
01:42	This is the website for Open Source - Hardware.
01:46	Click on the project SBHS.
01:50	On the left hand side, click on Downloads.
01:54	Click on the download link for SBHS Scilab codes for Windows.
02:02	It will download the Scilab code.
02:04	Save it on the Desktop.
02:07	Here it is!
02:09	The file downloaded will be in zip format.
02:12	Extract the content of this zip file on the Desktop.
02:16	To do so, right-click on it and choose Extract Here.
02:23	The contents inside this folder will be discussed at a later part of this tutorial.
02:29	Now, let us see the SBHS Virtual labs website.
02:33	On the left hand side, click on the link Virtual Labs.
02:37	This is the interface from where one can gain access to do remote experiments on SBHS.
02:46	A first time user needs to register once, by clicking on the Login/Register option.
02:55	After this, a form has to be filled and submitted.
03:00	An activation link is emailed to the user after the form is submitted successfully.
03:06	The link received in the email should be used to complete the registration process.
03:12	Note that the activation process may not be immediate. It may take a few minutes.
03:18	I will now login with my registered account.
03:22	I will enter my username and password.
03:28	After a successful login, a user has access to Book Slot, View/Delete Slot etc.
03:36	A slot is the time duration in which you can perform an experiment.
03:41	In our case, a slot lasts for 55 minutes of every hour.
03:47	After clicking on the Book Slot option, the client will have two choices.
03:53	One can either book Current Slot or a Future Slot.
03:58	Book Now option will appear only if the current slot is vacant.
04:03	Book future slot option will always be available.
04:07	It will allow two non-consecutive slots to be booked, each day.
04:12	I will click on the Book Now option.
04:15	You will receive an acknowledgement with your booking details appearing on the top side.
04:22	The slot booking part is over. Let us now run a simple Step Test experiment, downloaded from the website.
04:31	Open the folder you downloaded and saved on the Desktop.
04:36	You can see that there is a StepTest folder and a common files folder.
04:45	Do not move any of the folders from their location.
04:48	If the directory structure is changed, the experiment will not execute.
04:53	If you want one experiment to be copied elsewhere, make sure you copy the common_files folder too.
05:00	However, make sure the common files folder is always outside the experiment folder.
05:07	Open the common files folder. Open the file config.
05:13	This file is used to do the proxy settings.
05:17	Do not change the contents of config file if you are inside IIT Bombay OR
05:24	you are outside IIT Bombay and using an open network.
05:29	For example, at home or using a mobile internet.
05:34	Change the contents of the config file if you are outside IIT Bombay and using a proxy network.
05:42	For example- at an institute, office etc.
05:47	Put the value of use proxy as Yes with Y capital.
05:53	Change the other details as per the proxy network which you are on.
05:58	Save and close this file.
06:01	Open the StepTest folder.
06:05	Locate and double-click on the file run.
06:09	It will open the python based 'SBHS client' application.
06:13	Note that the first time execution of this file will take a minute to open the SBHS client.
06:21	It will show various parameters of the experiment like-
06:25	SBHS Connection, Client version, User login and Experiment status.
06:32	Green dots mean that the SBHS client can connect to the server.
06:38	It also shows that the client version I am using is the latest.
06:44	User login and Experiment status are red because I have still not logged in and the experiment is not running.
06:54	It will also give you an option to login.
06:58	Type your username and password.
07:03	This username and password is the same as you used to book a slot.
07:08	Click on login.
07:11	Ensure that you login on the booked date and time, with correct login details.
07:16	Expect the message "Ready to execute scilab code".
07:21	Switch to the StepTest folder which has the experiment files.
07:26	Double-click on the stepc file.
07:29	This should open Scilab automatically.
07:33	It should also open the file in Scilab editor.
07:37	If it doesn't, click on the File menu. Click on Open a file.
07:44	Choose the file stepc and click on Open.
07:50	Switch to the Scilab console.
07:53	Type the command: getd space dot dot slash common files and press Enter.
08:03	Switch to the scilab editor.
08:06	On the menu bar, click on Execute option and then click on File with echo .
08:14	If the network is working properly, it will open an Xcos diagram.
08:20	If it doesn't, it will show error on the Scilab console.
08:25	Using the step test Xocs diagram, we can set the experiment parameters such as Heat and Fan.
08:34	Double-click on each block to change its parameters.
08:39	I will set the heat to vary from 30% to 45% after 300 seconds.
08:46	I will put the Initial Value as 30, Final Value equal to 45 and Step Time equal to 300.
08:59	Similarly, I will set the Fan to be constant at 50% which is the default value.
09:08	Now, let us save and execute the xcos diagram.
09:13	To execute, click on the Start button on the menu bar.
09:18	If there is no error, it will open a plot window.
09:22	It will consist of three graphs, Heat, Fan and Temperature from top to bottom.
09:31	Switch to the SBHS client.
09:34	It shows the values of current iteration, heat, fan, temperature and time left for experimentation.
09:44	It shows the Log file name, it has created for this experiment.
09:49	Switch to the browser. Click on the Show video option.
09:56	It will give a live video feed of the SBHS you are currently accessing.
10:01	This is a real experiment and will take some time to complete.
10:05	I will pause this recording for some time and then resume again.
10:11	After sufficient time of experiment, the graph obtained is as shown.
10:16	I will stop the simulation by clicking on stop button, available on the Xcos window.
10:24	Close the SBHS client window after the experiment is over.
10:29	Now, switch to the experiment folder and open the logs folder.
10:36	It will have a folder named after your username.
10:40	Open this folder and locate your log file.
10:45	Read the log file name as year month date hours minutes seconds dot txt.
10:54	Use this log file for further analysis.
10:58	Let us summarise.
11:00	In this tutorial, we learnt: * what are the software installations required to do a remote experiment on SBHS
11:09	* How to use the SBHS virtual labs website
11:12	* How to use the python based SBHS client application
11:16	* How to execute the Scilab code of an experiment.
11:20	Watch the video available at the following link.
11:23	It summarises the Spoken Tutorial project.
11:26	If you do not have good bandwidth, you can download and watch it.
11:30	The Spoken Tutorial project team: * Conducts workshops using spoken tutorials
11:35	* Gives certificates to those who pass an online test.
11:39	For more details, please write to: contact at spoken-tutorial.org.
11:46	Spoken Tutorial project is a part of the Talk to a Teacher project.
11:50	It is supported by the National Mission on Education through ICT, MHRD, Government of India.
11:57	More information on this mission is available at: [1]
12:10	Thanks for joining. This is Rupak Rokade from IIT Bombay, signing off. Thank You.

Contributors and Content Editors

Nancyvarkey, PoojaMoolya, Sandhya.np14