First Schematic on Eagle (Problem)

[ElectroEnthusiast]

I wanted to sketch a circuit diagram, the ic used was icl 7107 for which i didn't get the library file/component on eagle. So, i continued drawing the schematic using a 40 pin DIP package. The problem is the component seems to be too small. I've posted the image, i was unable to clearly draw the circuit diagram. The problem is indicated in the image. Everything gets crammed. Any suggestions to get rid of this? Also, is it possible to change the dimensions of the IC? Thanks in Advance

**broken link removed**

 

[keith1200rs]

I think the ICL7106 and ICL7107 have the same pinout and the ICL7106 is in the MAXIM library. It has a pin arrangement on the schematic which isn't simply 1,2,3,4 ... so it should help the wiring.

However, you have some obvious problems on your schematic - no junctions. If you are using the NET command to make your connections it will automatically add junctions where necessary. It looks like you have been using WIRE which does not add them. You will have to manually add them otherwise there will be lots of missing connections.

As for the problems of wiring up all the components, space them farther from the IC. You could edit the symbol in the library but I suspect the proper symbol will work better than a 40 pin DIP symbol.

Keith

 

[ElectroEnthusiast]

Thanks, that helped in solving the problem. But, how can i simulate a rig up circuit? Should i use any other tool for this? I think the NETs need to be added at nodes with 3 or more wires meeting. Right?

 

[keith1200rs]

You should use NET for all connections. To fix the problems you have now, you need to ad a JUNCTION to all nodes where 3 or more wires meet.

Keith.

 

[ElectroEnthusiast]

Is there any library for Incandascent bulb/ bulb holder?