Bar Graph Display

lead in while they tend to look a little dull, once integrated into a system and used to display data, they are an intuitive component how it works there is nothing complicated about a bar graph display it is a collection of leds molded very close together and powered individually they are available in a variety of colors, ie red, green orange, and so on the outstanding requirement below would be to include a resistor on either the anod or cathode side wire the +ve to the anoide and the ve to the cathode and you have a functioning led note treat the leds below as normal leds with regards to the voltage applied over voltage will cause the led to fuse and this means you have one dead led in an entire bank which looks terrible and you have to replace the entire unit uses a common use for them would be to show the level of a value and in this regard, the type shown below has different colors built into the same display in the past, there were dedicated ics available that provided the conversion functionality to adapt an analog signal input the either a bar graph or dot output this can be adapted in software using a microcontroller additionally, you can cascade multiple displays together to extend the display lead out whether you are using it more intuitively or just as a vertical collection of leds, the bar graph display is a useful and visually compact method of displaying data