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<p>Initial page</p> <p><b>New page</b></p><div>== Analog signal ==<br /> [[File:Analog.png|383x383px]]<br /> <br /> Analog signals varies in amplitude, they can be of different voltage level. <br /> <br /> The signal can be interpreted either by the voltage level itself or by the frequency. For example, a sensor could output 0v-5v (this could be 0-100%) or a sensor could use the frequency to evaluate when an object accelerate (speed sensor for example).<br /> <br /> == Digital signal ==<br /> [[File:Digital signal.png|383x383px]]<br /> <br /> Digital signals have two possible amplitudes. (two states : 1 or 0, On or Off)<br /> <br /> Sensors can transfer data (signal) by varying the period (frequency). On digital communication, the frequency will be the same for each peer, they will listen to the 0 and the 1 for bytes that then get converted in messages / information.</div>

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