3. Prepare your circuit artwork
1. We need a schematic diagram
i. Design by ourselves
ii. Readymade (Internet, datasheet etc)
Eg. https://www.arduino.cc/en/Main/ArduinoBoardUno
2. What should we have on the schematic?
i. Circuit diagram.
ii. Name of the part used.
3. Software to design PCB
i. Eagle (http://www.cadsoftusa.com/)
ii. Proteus(http://www.labcenter.com/products/pcb/schematic_intro.cfm)
iii. Pads (https://www.pads.com/)
1
4. PCB Design Tutorial using Eagle Software
• Installing
– Download trial from http://www.cadsoftusa.com/download-eagle/
1 Prepare your circuit artwork
5. Create new project
>File > New >Project
A new project folder is made under
the project. Set the name of the
project folder by renaming.
When the project is working, it isn't
possible to change the name. In this
case, select "Close Project" from the
menu. When a project is closed, the
green mark changes to the small
gray mark.
1
Starting a New Project
Prepare your circuit artwork
6. The file to draw a schematic must
be made after creating a project.
Select "New" from the menu which
is displayed by right clicking the
project and select "Schematic".
By above operation, the window
to draw a schematic is displayed
newly.
In this condition, an actual file isn't
made yet.
1
Create Schematic File
Prepare your circuit artwork
7. Select File menu and select "Save as...". The file is made with this
operation.
Write the name of the ‘schematic’.
A file of .sch is saved by pushing the Save button.
1
Create Schematic File
Prepare your circuit artwork
8. 1
Create Board File
Prepare your circuit artwork
In the project, another important file must be created…called the board
to draw the mask pattern for the printed board. The board file can be
created after drawing a schematic. When adding a part to the
schematic, a part is added to the board, too. So, when drawing a
schematic, it is necessary to keep a board file always open condition.
Click "Board" icon in the schematic window
When a board isn't made yet,
board creating is confirmed by
following dialog.
9. 1
Create Board File
Prepare your circuit artwork
Following board window is displayed. In this condition, an actual file isn't
made yet.
A board file is made by clicking "Save" icon in the board window.
The file name is same as the schematic file. But, the extension is ".brd"
10. 1
Schematic and Board File Created
Prepare your circuit artwork
The existence of the schematic file and the board file can be confirmed by
the project folder of the control panel.
The working environment was ready with above operations.
11. 1
Selecting and Adding Parts
Prepare your circuit artwork
To make the mask pattern of the printed board, the schematic must be
drawn. The part which is used with the schematic is chosen from the
one which is registered on the library.
Click the "ADD" button which is put on the left side in the
schematic window. NOTE: this screen is displayed
when the “use” status is active,
marked by green bullet. Right
click the Library folder and click
Use All.
12. 1
Selecting and Adding Parts
Prepare your circuit artwork
When pushing the OK button, a
part is displayed on the
schematic. Push the left button
of the mouse in the position.
Click one more to get another
same part.
To stop the addition function of the
part, push an ESC key and "Cancel"
button in the schematic window
13. 1
Wiring Parts
Prepare your circuit artwork
After we put the component, then wiring can be
done by the Wire function. Left click the lead wire
of the part and double-click at the end point which
of wiring. It isn't necessary to keep to push the
mouse button during wiring work. To stop this
feature, press STOP button.
The drawn line can be erased using
the Delete button.
14. 1
Exercise!
Prepare your circuit artwork
Draw this circuit now!.. A 5 volt voltage regulator circuit.
After drawing a schematic, the mistake can be
automatically detected by the ERC (Electrical Rule Check)
button.
16. 1
Creating Board file
Prepare your circuit artwork
When the schematic drawing is ready, click Board button from schematic file.
The yellow line among the parts is the line which shows a connection among the
parts. But, these lines are not wiring for the printed board yet.
17. 1
Parts arrangement on the board
Prepare your circuit artwork
The parts of the board are arranged out of the printed board. After pushing the
Move button, move the parts inside the frame. We can also put text inside.
The yellow line shows a connection among the parts.
The part should be arranged for the yellow line to be simpler.
18. 1
Autorouting on the board
Prepare your circuit artwork
Automatically wiring is done by the "Auto" button.
