![]() Pull up resistors give a pin of a chip a clear ![]() Not defined, we have no control because the pins are floating randomly and haphazardly. When pins are well defined, we have control over the circuit. Pull down resistors pull down a pin to a LOW state. Pull up resistors pull up a pin to a HIGH state. And this is exactly why we use pull up and pull down resistors. We know for sure whether it is LOW or HIGH. Going into a pin so that we can know for sure exactly what its state is. And this is why we normally want a defined signal Things such as external noise may allow it Pins may float because they have no clear defined voltage signal going into it. In this case, the pin may go randomlyīetween LOW or HIGH. Or pins can be floating, meaning they are unconnected to either a LOW or HIGH voltage. Pins can be HIGH, meaning a voltage above half of the voltage fed into the chip's power supply is fed into the pin. They can be LOW, meaning a voltage near 0V (or below half of the voltage fed into the power supply of the chip) Pull up or pull down resistors are normally connected to the pins of chips so that they can define the state of the pins. Pull up and pull down resistors are truly brilliant when working with chips (ICs), In this article, we go over the brilliance of pull up and pull down resistors. Pull up and Pull down Resistors- Explained
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