Hello again,

This post is actually going to become handy on the future posts I am planning for the DS18S20 thermometer. This is a well known and used thermometer as it simple to implement and quite accurate. I will do a brief description of the protocol it uses to communicate with our PIC. Through this protocol we can send commands to the DS18S20 and receive data and responses.
This is actually a brief review of the datasheet of the device which is already very simple to understand. This post is just to introduce the basics of the o/w protocol.

First you can download the latest pdf from here. Read more…

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