Basic Components

IC 555 Timer DIP-8
The 555 timer IC is an integrated circuit (chip) used in a variety of timer, pulse generation, and oscillator applications. The 555 can be used to provide time delays, as an oscillator, and as a flip-flop element.

Ever hear of a thing called RGB? Red, Green, Blue? How about an RGB LED? These 5mm units have four pins – Cathode is the longest pin. One for each color and a common cathode. Use this one LED for three status indicators or pulse width modulate all three and get mixed colors!