Right angle is usually not used, mostly the angled ones are used. All these specify the type of turn your trace will make when you will be routing. You can also see some shapes like right angle, obtuse bend, squiggly lines, etc. Just to give you an idea of how much that, modern day smartphones’ circuit board contain up to 16 layers and modern day computers’ motherboard contain up to 12 layers! Physically the two layers are put together by non-conducting adhesive and vias are used to create electrical connection between them. As mentioned earlier, EAGLE supports up to 16 layers of design. The “16 Bottom” defines the current layer where you will be routing, since we are going to design a single layer board we will change it to “1 Top”, the top layer with red color. Usually start by moving the component having most number of connections, in this case the op-amp. Start by moving the components from outside the board dimension (using move and rotate tool) to the inside one by one. You can define these in the tool and check your board whether your board design is violating these rules and make corresponding changes in design. Holes: This tool is used to place drill marks on your PCB.ĭesign Rule Check: Your board manufacturer may have certain limitations on the board design such as minimum trace width, minimum clearance etc. It is usually customary to use this tool every time you move a component. This tool is used to calculate the shortest air-wire distances. Ratsnest: When you place components on the board and rearrange them differently, the air-wire connections still remain the same. Via: Via is a board component which is used to connect different layers of the board or it is used as a jumper to cross over trace connections. Rip-Up: Made a mistake while using the route tool? The rip-up tool is here to your rescue! Use it to undo the trace connections you made. They are the lines that you usually see on a finished PCB. A trace is an electrical connection on a PCB. Route: The route tool is used to draw traces in between the components. They are not actual connections and are for the designer’s reference only so that the components can be arranged as compact as possible in order to get a smaller board size. The yellow lines, called the “air wires”, represent the connection between the components that you defined in the schematic. In the zoomed in image you can see the component package design like the Dual In-line Package of the op-amp. You can see it on the bottom left in the above image.
#Layouteditor pi software#
When you transit from the schematic to the layout editor all your components are automatically placed by the software outside the board. You can change the dimension by using the move tool. Anything outside it will not be produced or included in the board layout. Only the new and required tools and areas are explained.īoard dimension is the actual size of the board which is the big white rectangle visible in the black editor space. This saves us from discussing the same concepts again. The layout editor’s workspace is quite similar to the schematic editor’s workspace like the grid, command line, etc. Simply click the board button in the menu bar of the schematic layout editor as shown below. The board layout from the schematic is just a click away. Autorouter is a feature of EAGLE where the software creates the traces connecting the components automatically.
We are also going to connect the components manually without using the auto-router.
#Layouteditor pi free#
Since we are using the free version of the EAGLE software we are going to design a single layer board. This post simply deals with the various tools that EAGLE has to offer. There are some design principles and specifications one needs to keep in mind as well which is out of the scope of this post and will be posted separately. And if you use the EAGLE’s autorouter feature, all you need to do is to make it look pretty!Įven though it might sound simple, it actually isn’t! For simple circuits, that’s fine, but as the complexity of the circuit increases, and as the number of layers in your PCB increases, the layout becomes more and more mind-boggling and will require your complete attention! Your task is to arrange them on the board appropriately, route the traces (make electrical connections) and add text/image on the board if you want. This is a relatively simple step since EAGLE links your layout file and the schematic file together and automatically includes the components in the board layout.
#Layouteditor pi how to#
Next in line is how to create a board layout from the schematic we just created using the layout editor.
#Layouteditor pi series#
So far in our EAGLE tutorial series we discussed about the software environment and the schematic editor.
PCB Design using EAGLE – Part 3: Using the EAGLE Layout Editor
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