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AVR Programming Guides
We have some nice AVR code samples to share. Lots of AVR goodies like timers, interrupts, and pin I/O for the beginner. |
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Watts Tables
Use these tables to help you determine how much various items in your house cost you by the day, month, and year. |
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Saving Electricity
A list of a variety of ways to help you save money by learning how much it costs to run things. |
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Read Your Power Meter
By reading your power meter you can get a good idea of how much various electrical devices cost you. |
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Common Schematic Symbols Page 4
Capacitors
Capacitors come in 2 varieties: polarized and non-polarized. You have to be sure that you know which kind you are dealing with when you use capacitors. We will talk about each of them separately. Capacitors are covered in detail in the Capacitor Guide.
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Here is one possible schematic symbol for a capacitor. Next to the schematic are some ceramic capacitors. These are very common, cheap capacitors. They are called non-polarized capacitors, because there is not a + or - sign next to either of the legs. This is true for both the schematic symbol and the real life part.
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This is the symbol for a polarized capacitor. In the picture next to the schematic we have some electrolytic capacitors. You may notice that the legs are marked with a (-) sign to indicate which side of the capacitor goes to GND.
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