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{{Arduino Buyers Guide}} {{Bells/Buzzers/Mics/Speakers Buyers Guide}}

...''Diodes'''] fall broadly into two types - rectifier and signal. Rectifier diodes are used in power supplies to convert [http://en.wikipedia.org/wiki/Alterna Signal diodes normally handle much lower power but may be required to operate at much hig

[http://en.wikipedia.org/wiki/Capacitor '''Capacitors'''] are used to store electric charge which can be released into a circuit Most commonly used capacitors are rated in '''microfarads''' - '''µF''' ''(millionths).

[http://en.wikipedia.org/wiki/Resistor '''Resistors'''] are used to control the flow of current in a circuit, by ''‘resisting Resistors are available in values from fractions of ohms up to many millions of ohms

...sistance of [http://en.wikipedia.org/wiki/Photoresistor '''Light Dependent Resistors ''(LDR)'''''] decreases when light falls on them. {{Resistors/Capacitors/Diodes Buyers Guide}}

{{Resistors/Capacitors/Diodes Buyers Guide}}