© Neil Cameron 2019
Neil CameronArduino Appliedhttps://doi.org/10.1007/978-1-4842-3960-5_6

6. 4-Digit 7-Segment Display

Neil Cameron1 
(1)
Edinburgh, UK
 
../images/471900_1_En_6_Chapter/471900_1_En_6_Figa_HTML.jpgThe 4-digit 7-segment display is an extension of the 1-digit 7-segment display discussed in Chapter 5. As with the 1-digit 7-segment display, there are seven LED segments on the 4-digit display, labelled a, b,g and P or DP. There are an additional four pins controlling the 4-digit displays. The pin layout on the 4-digit 7-segment display is illustrated in Figure 6-1 and the order of the digits from the left-hand side is 1, 2, 3, and 4. The 4-digit 7-segment display has a common cathode and a digit ...

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