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You are given an analog pressure sensor that can detect the pulse rate in a vein...

You are given an analog pressure sensor that can detect the pulse rate in a vein when attached to a wristband, and asked to design a system based on an Arduino UNO. What functionality on the Arduino would you use to accomplish this task? What questions would you need to ask in order to begin the design?

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Answer #1

The given sensor is an analog type, hence you should use the Analog to Digital Interface in the UNO. This component can be used for converting the analog data coming from the sensor to the digital format which can be used to make logic inside UNO.

The basic questions which are needed for the design are,

(1) What is the resolution required: Based on this we have to set the analog reference voltages in the UNO.

(2) How does the physical pressure relate to the analog value output of the sensor.

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