5.7 Other LED Shapes
LEDs are also available in different shapes and sizes. Figure 5.6 shows an LED assembly in the form of a bar, housed in a DIL package, and is available in different colours.
Figure 5.6 LED bar
Figure 5.7 shows an LED dot-matrix assembly consisting of 5 rows and 7 columns of LEDs arranged as dots, and housed in a 14-pin DIL package. This type of dot-matrix LEDs is available in various colours, sizes and shapes. Several such LED assemblies can be connected to each other and a microcontroller is commonly used to display characters or symbols on the LED assembly.
Figure 5.7 LED dot-matrix assembly
LED dot-matrix displays are also used as large fixed or moving displays, usually in advertisements, or as signs. An example large display is shown in Figure 5.8.
Figure 5.8 Large LED dot-matrix display
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