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1-Wire Bus

i-Button The VM2 is capable of driving the Dallas 1-Wire bus protocols allowing communication with iButtons and other 1-Wire devices. All 1-Wire devices have a unique ID number which can be useful in identification, validation and security applications. Many 1-Wire devices may co-exist on a single 1-Wire bus without conflict.

All that is needed to implement the basic 1-Wire bus on a VM2 is a single resistor.