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Code: JPRIC
The 555 Timer is a commonly used IC designed to produce a variety of output waveforms with the addition of an external RC network.
The basic 555 timer gets its name from the fact that there are three internally connected 5kΩ resistors which it uses to generate the two comparators reference voltages. The 555 timer IC is a very cheap, popular and useful precision timing device which can act as either a simple timer to generate single pulses or long time delays or as a relaxation oscillator producing a string of stabilised waveforms of varying duty cycles from 50 to 100%.
