Page 230 - Make Your Own PCBs with EAGLE from Schematic Designs to Finished Boards
P. 230
The module could do with symbols for GND and 5 V and then connect all these together with nets.
Here are the commands for this:
When it is all complete, the area of the schematic should look like Figure 10-5.
FIGURE 10-5 A 7805 regulator assembly generated by script.
Save the file in the .scr folder, and then you can use it by clicking the “SCR” button and
selecting the script. You can download the script from the book’s webpage at www.simonmonk.org.
Scripts are great for simple automation tasks, but they are not able to do looping, branching, or
other programming tasks. They also do not allow you to find out things about the schematic before
performing some commands relating to the schematic. For example, you cannot select all the resistors
and then change their values. To do these more advanced operations, you need to use ULPs.
User-Language Programs
The EAGLE ULP is a fully featured programming language with a C-like syntax. If you are used to
programming, then you will soon get the hang of the syntax. It is beyond the scope of this book to
