this instructable will show you exactly how to read all those confusing circuit diagrams and then how to assemble the circuits on a breadboard!
for all the electronics hobbyist wannabes this is a MUST-READ instructable.
knowing how to read circuits is a very useful skill that will help you out all the time. especially if you start messing around with building little electronics projects.
In addition to reading this instructable it may be a good idea for you to read my other instructable "electronics components and what they do" to get a good understanding of what you are doing when building a project. (woops not done with this yet, i got caught up with other stuff, check back in a week or so)
Step 1: So What Are All Those Symbols???
here is a little guide that shows you the basic symbols for all sorts of components. its handy to keep a little guide like this around in case you forgot some. Plus, while you're beginning you might have to refer to it pretty frequently. I have boxed the most common symbols in red, these are the ones you should get to know by heart. the others you can always refer back to the guide for.
dont be overwhelmed its simpler than you think, just stay with me
Step 2: Okay, but how is each part connected?
physically parts are connected by wires, in the diagrams you will see black lines going from one part to the next. this means that you connect them with a wire
when the black lines cross in a diagram there are ways of telling whether or not the wires should be connected to each other as shown below.
Step 3: HOLD UP: What about Polarity?
some components to a circuit board are polarized, meaning one side is positive and the other is negative. this means you have to attach it in a certain way. for most symbols polarity is included in the symbol. in the the photos below you will find a guide to distinguishing polarity for various symbols. to find out the polarity of the physical part a general rule of thumb is to look for which metal lead wire on the part is longer. this is the + side.