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Topic: Cheap External Chip Needed (Read 3739 times) previous topic - next topic

stushev

Is there another type of communication that doesn't use many pins and is well-supported?



I'd recommend I2C. It's not very complicated, uses only 2 lines, and you can work with up to 127 devices simultaneously (various sensors, eeprom etc). With SPI, AFAIK you can use only one device at once (you have to switch them if you have more than one in circuit).

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