(a) Draw a flow chart to a program that will have a steering servo motor move based on an input from a light sensor. The rover can follow the dark line on the floor because of the light reflected from that dark line has low intensity. When the rover goes off course and there is no more dark line on the floor below the rover, the light intensity is higher. The light intensity values of the light sensor will range from 0 to 1023 (higher values corresponding to brighter light). When the value of the light intensity increases above 400 it means that the rover is off course and the servo motor that controls the steering of the rover should be activated to put the rover back on course. We will assume that if light intensity is below 400, no steering should be performed, when the light intensity is above 400, the servomotor should go to -45 degrees until the light intensity drops below

(a) Draw a flow chart to a program that will have a steering servo motor move based on an input from a light sensor. The rover can follow the dark line on the floor because of the light reflected from that dark line has low intensity. When the rover goes off course and there is no more dark line on the floor below the rover, the light intensity is higher. The light intensity values of the light sensor will range from 0 to 1023 (higher values corresponding to brighter light). When the value of the light intensity increases above 400 it means that the rover is off course and the servo motor that controls the steering of the rover should be activated to put the rover back on course. We will assume that if light intensity is below 400, no steering should be performed, when the light intensity is above 400, the servomotor should go to -45 degrees until the light intensity drops below

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Operations

In mathematics and computer science, an operation is an event that is carried out to satisfy a given task. Basic operations of a computer system are input, processing, output, storage, and control.

Basic Operators

An operator is a symbol that indicates an operation to be performed. We are familiar with operators in mathematics; operators used in computer programming are—in many ways—similar to mathematical operators.

Division Operator

We all learnt about division—and the division operator—in school. You probably know of both these symbols as representing division:

Modulus Operator

Modulus can be represented either as (mod or modulo) in computing operation. Modulus comes under arithmetic operations. Any number or variable which produces absolute value is modulus functionality. Magnitude of any function is totally changed by modulo operator as it changes even negative value to positive.

Operators

In the realm of programming, operators refer to the symbols that perform some function. They are tasked with instructing the compiler on the type of action that needs to be performed on the values passed as operands. Operators can be used in mathematical formulas and equations. In programming languages like Python, C, and Java, a variety of operators are defined.

Question

(a) Draw a flow chart to a program that will have a steering servo motor move based on
an input from a light sensor. The rover can follow the dark line on the floor because of
the light reflected from that dark line has low intensity. When the rover goes off course
and there is no more dark line on the floor below the rover, the light intensity is higher.
The light intensity values of the light sensor will range from 0 to 1023 (higher values
corresponding to brighter light). When the value of the light intensity increases above
400 it means that the rover is off course and the servo motor that controls the steering
of the rover should be activated to put the rover back on course. We will assume that if
light intensity is below 400, no steering should be performed, when the light intensity is
above 400, the servomotor should go to -45 degrees until the light intensity drops below
400. We will assume for simplicity that our rover only veers to the right to get off the
line and it would require to move servo to -45 degrees to put the rover back over the
line. Once the light intensity falls below 400, the servo moves to 0 degrees. This
procedure is performed in a loop to keep the rover over the dark line.
(b) Write this algorithm using pseudo code.
(c) Write the algorithm as if you are writing in Arduino IDE.

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