A bidirectional LED wiring diagram is a circuit diagram used to indicate the connection of electronic devices and components with one another. This type of circuit diagram is used in high-frequency power systems and allows for multiple-direction current paths.. Download our step-by-step LED Sign Installation Guides, available in a PDF format. A guide is available for each product line we offer.
Simple Bi-Color LED Control: I remember one or two years ago, I bought a two color LED from Radial (Radio) Shack. I used my PC's parallel port to turn it on and off/flash it. I added a diode and some capacitors and the LED would fade on and fade off. It reminded me of a radio t…. The Bi-color LED is a handy little component that allows two colors (red and green) in a single LED while only having two pins (cathode and anode). The color of the LED depends on the polarity of the connection only allowing one color at a time. Similar LED's that provide two or even three colors usually have three or four pins allowing for a wide range of mixed colors. One would think having.