What is the use of the rotary encoder?(a) To measure RPM or speed(b) To provide 3G Connectivity(c) To measure presence of gas(d) To measure Wi-Fi strengthI have been asked this question in my homework.This question is from Rotary Encoder topic in section Interfacing of Sensors, Actuators, and Other Modules of Arduino

What is the use of the rotary encoder?(a) To measure RPM or speed(b) T

1.	What is the use of the rotary encoder?(a) To measure RPM or speed(b) To provide 3G Connectivity(c) To measure presence of gas(d) To measure Wi-Fi strengthI have been asked this question in my homework.This question is from Rotary Encoder topic in section Interfacing of Sensors, Actuators, and Other Modules of Arduino
Answer» Right answer is (a) To measure RPM or speed To explain: The rotary encoder is used to measure the RPM or speed or any other such motion and angular velocity related PARAMETERS of any ROBOTIC SYSTEM or any other system in GENERAL. It provides a series of ticks which provide us with the necessary information to DECODE that into our required values.

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