![]() Here is what I came up with for the above schematic: There is software to do this "automatically", but I find for small circuits it's not really worth the effort in setting up and it always requires manual tweaking anyway. You have to take into account the size of each part and where the leads are. You need to think carefully about where you place each component and where you may need to cut tracks or add wire links to complete the circuit. This page has some useful templates that you can use if you want to do it by copy and pasting in paint. I usually do this by hand on graph paper, because I find it easier to work with. Next you need to translate the circuit diagram to your stripboard layout. I find 9 x 25 stripboard is usually enough to build most small circuits on. It's the type that has rows of copper strips, there are other types that have separated copper pads and are just as useful but quite expensive where I live. There are a few types of prototyping board available, the type I use is called "Veroboard" or stripboard. Now that you know what components you'll require, you need something to build the circuit on. In my case I need: 6 resistors, 5 npn transistors, 2 leds and a potentiometer. This page has a good list of the most common symbols. The first step is to find out what parts you need, all circuit diagrams should use the same symbols for components. There's more explanation at the end of the post in this thread. This circuit will show a green led when the battery is ok, and switch it to show a red led when the battery voltage is low. First, start with a schematic diagram here is mine. Here I'll detail what I did to build my low-battery circuit, hopefully some of this will also apply to more general circuit making.
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