You would need the two, common SPI lines: MOSI/SDO and SCK. Then, you'd need an individual #CS for each potentiometer. Then bring only one #CS low corresponding to the potentiometer you wish to address and send your data over the SPI interface.Could someone explain to me how four MCP4142 digitPots could be added to a single microcontroller and how many I/O pins would be required
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