How to Spatially Index 1-Wire® Sensors Using the MAXREFDES131 and DS18B20

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In this video, Travis explains how to index the DS18B20 temperature sensor by its location within a 1-Wire® network. He then demonstrates how to configure the sensor using the GUI for the MAXREFDES131 1-Wire GridEYE sensor reference design.

00:19 1-Wire Advantages
01:35 Implementing the Indexing Circuit
02:44 Using the MAXREFDES131
02:54 Using the Hardware
03:17 Using the Demo GUI
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Am I missing something looks like you also need Vdd, so 3 wires are actually required? - ground, data and supply

soltropyltd