KiCad/C2/Designing-circuit-schematic-in-KiCad/English-timed

Time	Narration
00:01	Welcome to the spoken tutorial on “Designing circuit schematic in Kicad”
00:08	Let us now see the steps involved in PCB designing
00:12	First step is to create schematic for the desired circuit.
00:16	Second step is to generate netlist.
00:19	Third step is to map components with corresponding footprints.
00:22	And fourth step is to create board layout for the circuit.
00:27	In this tutorial we will learn first step, that is,
00:32	Creating a schematic for the desired circuit.
00:35	We are using Ubuntu 12.04 as the operating system.
00:40	With KiCad version 2011 hyphen 05 hyphen 25 for this tutorial.
00:49	Basic knowledge of electronic circuits is a pre-requisite for this tutorial.
00:56	We will use Astable multivibrator as an example circuit for this tutorial.
01:04	To start KiCad,
01:05	Go to top left corner of ubuntu desktop screen.
01:08	Click on first icon i.e the Dash home.
01:12	In the search bar type 'KiCad', and press Enter.
01:19	KiCad main window will appear on the screen.
01:22	Note that in Ubuntu 12.04, the menu bar of KiCad appears on the top panel of Ubuntu desktop.
01:30	To start a new project, click on File and then click on New.
01:35	Give a name to your project. For example, project1.
01:42	Note that project is getting saved with .pro extension
01:47	Let me resize this window for better view
01:52	Notice where your project is getting saved and change the directory if needed.
01:58	Click on Save.
02:01	Circuit schematics are made in KiCad using EESchema.
02:06	Let me show you how to start EESchema in KiCad.
02:10	The first tab in the top panel of KiCad main window is called as EESchema or schematic editor
02:19	Clicking on EESchema tab opens the schematic editor.
02:23	An Info dialog box will appear saying it cannot find the schematic.
02:28	Click on Ok.
02:32	We will create circuit schematics here.
02:35	Go to right panel of EESchema window.
02:38	click on Place a component button.
02:42	Now click on the blank EESchema window.
02:46	The component selection window will open up.
02:49	Now we will place 555 timer IC schematic in the EESchema window.
02:56	In the Name field of component selection window, type 555 and click on Ok.
03:05	It will show the search result as LM555N.
03:11	Select this result and click on OK.
03:14	The component’s schematic will appear on the EESchema window.
03:19	It would be tied to your cursor.
03:22	Place the component at the center of the screen by a single click.
03:27	To zoom in and out for better view use the scroll button of your mouse.
03:35	Keep Cursor on Component which you want to zoom in and zoom out.
03:39	You can also use F1 and F2 keys to zoom in and zoom out, respectively.
03:46	You may or may not see the VCC and GND i.e. the ground terminal on the 555 IC.
03:56	If you do not see it, go to the left panel of EESchema window.
04:00	Click on the Show hidden pins button.
04:04	Now we will place a resistor in the EESchema window.
04:09	The Place a component option was previously selected by us.
04:13	Hence, simply click on EESchema and you will see the component selection window.
04:21	In the name field, type r and click on OK.
04:26	Resistor schematic will appear on EESchema which will be tied to cursor.
04:32	Place the resistor somewhere on the EESchema by a single click
04:37	We need two more resistors.
04:39	We can get the two resistors using the Place a component button.
04:42	But since we already have a resistor, let us see how to copy a component.
04:48	To copy a component, right click on the component and choose Copy Component.
05:01	A copy of the component will be tied to your cursor.
05:05	Place this resistor somewhere on EESchema by a single click.
05:11	This can also be done more quickly using the keyboard shortcut c.
05:16	For this, keep the cursor on the component and then press c.
05:22	Again it will be tied to your cursor.
05:27	Click once to place it.
05:30	A list of shortcuts can be obtained by pressing Shift and ? (question mark) key.
05:36	Here is the list of keyboard shortcuts.
05:40	Close this window.
05:43	Click on EESchema window to open the component selection window.
05:49	Next we need two capacitors, electrolytic and ceramic.
05:53	Type cp1 to add electrolytic capacitor and click OK.
06:00	Type c to add ceramic capacitor and click OK.
06:06	We also need a Light Emitting Diode, know as LED.
06:10	In component selection window type led and click on OK.
06:17	Now we need a power supply i.e.Vcc and Ground terminals.
06:22	On the right panel of EESchema, click on Place a power port button.
06:29	Click once on the EESchema to open the component selection window.
06:34	Click on List All button and you will see a list of various power notations.
06:40	Choose +5V (plus 5 volt) and click on OK.
06:48	Place the component by single click on the EESchema window
06:52	Similarly, to get the ground terminal,
06:54	choose ground from the list and click on OK
07:01	Let me choose the ground terminal
07:08	We also need a connector to connect the external power supply
07:14	Click on the EESchema to open the component selection window.
07:19	Click on List All button and you will see a list.
07:24	Choose conn option and click on OK.
07:31	Scroll down and choose CONN_2 from the list and click on OK.
07:41	A two terminal connector will appear. It will be tied to your mouse pointer
07:48	Click once to place it.
07:56	Now we will arrange the components, by moving them to appropriate places.
08:01	We will use the shortcut key m for moving the components.
08:04	To move a component, keep the mouse pointer on a component, say resistor, and then press m.
08:15	We will place this resistor to the right of IC 555 by a single click on the EESchema.
08:28	We will use the keyboard shortcut key r for rotating the LED and aligning it vertically.
08:40	Now we will see how to interconnect or wire the components as per the circuit diagram.
08:45	Let us start with the interconnection of components.
08:48	On right panel of EESchema, Click on Place a wire button.
08:56	We will now interconnect two resistors.
08:58	We will connect wire by clicking on either nodes of both the resistors.
09:11	Now we will connect the 7th pin of IC 555 to the wire connecting the two resistor.
09:18	Click on the 7th pin of IC 555 and then on the wire connecting the two resistors.
09:30	Notice that this will automatically form a junction which appears as a node.
09:35	I have already interconnected the components and saved it.
09:39	I will now open and use this already made schematic to save time.
09:44	I will go to file menu & click on open.
09:53	A Confirmation window opens. Click on Yes.
10:04	I will choose project1.sch from the desired directory.
10:18	Let me resize this window first .
10:22	and then I will click on open.
10:29	I will click on open.
10:33	Here is the schematic created earlier.
10:36	We would now see how to annotate components.
10:39	Annotation gives unique identification to each component.
10:43	Annotating will replace the question marks on the components with unique numbers.
10:50	On top panel of EESchema, Click on “Annotate schematic” button.
10:58	This will open the Annotate Schematic window.
11:02	In this window, keep the default configuration.
11:05	Click on the Annotation Button.
11:09	This will warn you that it will annotate only the un-annotate components.
11:13	Click on OK.
11:15	Click on the Close button on the Annotate schematic window.
11:20	Notice that the question marks on the components are replaced with unique numbers.
11:30	Click on File
11:37	and choose Save whole schematic project to save this schematic.
11:43	Click on File and choose Quit.
11:48	This will close the EESchema window.
11:50	Now go to KiCad main window.
11:53	Click on File and choose Quit
11:56	This completes the objective of this tutorial of creating circuit schematic in KiCad.
12:01	Let us summarize what we learnt in this tutorial
12:05	In this tutorial we learnt,
12:07	To use EESchema in KiCad for creating circuit schematic
12:11	Annotation of circuit schematic.
12:15	Try the following Assignment,
12:17	Place component Inductor on EESchema using component selection window.
12:24	Explore shortcut keys a, x and y
12:31	Watch the video available at the following link
12:35	It summarizes the Spoken Tutorial project.
12:37	If you do not have good bandwidth, you can download and watch it.
12:43	The Spoken Tutorial project team:
12:45	* Conducts workshops using spoken tutorials.
12:48	* Gives certificates for those who pass an online test.
12:52	For more details, please write to: contact at spoken hyphen tutorial dot org.
12:59	Spoken Tutorial project is a part of the Talk to a Teacher project.
13:03	It is supported by the National Mission on Education through ICT, MHRD, Government of India.
13:09	More information on this Mission is available at:
13:13	spoken hyphen tutorial dot org slash NMEICT hyphen Intro.
13:20	This script has been contributed by Abhishek & Rupak.
13:25	This is Rupak Rokade from IIT Bombay, signing off. Thanks for joining.

Contributors and Content Editors

Krupali, PoojaMoolya, Pratik kamble, Sakinashaikh, Sandhya.np14