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Connection circuit of thumbwheel switch ICM7217
Source: InternetPublisher:fish001 Keywords: switch Updated: 2020/12/15
Shown is the circuit that drives the LED digital display . The counting signal is sent to the ⑧ pin of IC M7217. After counting and encoding processing in the chip
, it drives the digital display panel. The connection relationship of the thumb wheel switch is as shown in the figure.
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