Pull-up & Pull-down Resistors Calculator
Resistors are current limiting devices with are used abundantly in electronics circuits and products. It is a passive component which provides resistance when current flow through it.
Pull-up and pull-down resistors are often used when interfacing a switch or some other input with a microcontroller or other digital gates. They are often used to provide a controlled current flow into a resistive sensor prior to analog to digital conversion of the sensor output voltage signal.
Pull-up Resistor
Pull-up resistors are resistors which are used to ensure that a wire is pulled to a high logical level in the absence of an input signal.
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Pull-down Resistor
Pull-down resistors work in the same manner as pull-up resistors, except that they pull the pin to a logical low value. They are connected between ground and the appropriate pin on a device.
