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2015
In Part 1 of this series of blog posts, I explained how I got from a hand sketch of a circuit to a schematic in Eagle, CadSoftusa 's PCB Design Software.   This blog takes the randomly placed components onto a board, to the final layout.     This symbol on the top toolbar of Eagle switches from schematic to board view. If a board has not been generated from the schematic already, it asks if you'd like to do this.   First item is to run an Electrical Rule Check (ERC) t ...
Eeek - how do I get started?   For this series of blog posts, I'll be sharing how I make this circuit into a PCB:   The circuit will turn on an LED when it gets dark I am going to make it with a 3V  CR2032 battery so the finished PCB can be put in a jam-jar and left outside to mark a path or a tentpeg or put in a pumpkin at halloween or used as a nightlight Or anything else where you want a light to come on when it is dark   I prototyped it on a breadboard to make sure ever ...
CadSoftusa Eagle PCB design software already has a lot of Farnell Element 14 components in its libraries - and more you can add from here. But what happens if there is something you want to use that isn't there?   Recently I wanted to attach a CR2033 3V battery to a PCB. The battery holder I chose, the Renata Hu2032-LF, did not already have a Eagle device associated with it.   This blog post will explain how I adapted an Eagle library device (LI Battery Varta CR2032H) (below)   ...