Table of Contents

Corning Community College

ENGR1050 C for Engineers

PROJECT: Simple Simon Says (SSS0)

OBJECTIVE

Create circuitry and code software to eventually craft a simple version of the classic “Simon” game of recalled repetition.

GRABIT

To assist with consistency across all implementations, data files for use with this project are available on lab46 via the grabit tool. Be sure to obtain it and ensure your implementation properly works with the provided data. 

lab46:~/src/SEMESTER/DESIG$ grabit DESIG PROJECT

OVERVIEW

Your task is to design a circuit and write a program that:

Contributing to project documentation is also a core part of this project. If from reading the existing documentation or through your own exploring, you find something lacking, unclear, or outright missing, that is an opportunity to potentially contribute content.

You want the project documentation to provide you (as if coming in with no awareness of the project) with sufficient information so as to allow you to proceed. Asking questions on the discord is a great way of getting more information that you can use to add content.

EDIT

You will want to go here to edit and fill in the various sections of the document:

BACKGROUND

For this project, we will be experimenting with sound to create a song. In this project we will learn what an active and passive buzzer is. An active buzzer has a built in oscillator to generate sound by itself with a DC (direct current) power supply. A passive buzzer does not have a built in oscillator to generate sound, instead it needs an AC (alternating current) audio signal to generate sound. In this project, we will be using a passive buzzer to create the sound that will be used to play the song we create.

ARRAYS

Arrays are a type of variable that contain a number of elements within it. An array can hold any number of elements, be they a variable or a value, provided that these elements are all of the same data type and the number of elements is a predetermined finite value.

The first element in an array has an index of 0, the second element has an index of 1, and so on. Declaring an array is done similarly, yet slightly differently, than that of other variables. With other variables, they might be declared like this:

int index = 0;

For this, “int” is the data type of the variable, “index” is its name, and “0” is its value, this we know.

For arrays, however, rather than declaring some sort of array data type, we instead declare the data type of the elements that will populate our array, appending square brackets to the end of the variable name to indicate an array, with a number within those brackets to signify the number of elements in, or size of, that array (no number means 0). Using vcc0 as an example:

int pin[NUM_PINS];

The name of this array is called “pin” and holds “NUM_PINS” number of elements, and the data type of those elements is “int”.

Both calling and assigning the value of an element within an array after the array has been declared is once again done similarly, yet slightly differently, than that of other variables. The only difference is that, for an array, the index of the element being assigned must be within square brackets appended to the end of the name of the array. Once again using vcc0 as an example, for assigning:

pin[2] = 3;

This will assign the third value (index = 2) of the array “pin” to have a value of “3”, provided that the array has a size of at least three elements.

ELECTRONICS

PARTS

A Passive buzzer is also known as Transducer, it uses AC power that is driven through an onboard circuit. The frequency is dependent on the input square wave signal, as it changes so does the frequency, hence offering more variance in its usage.

Transistors are electronic components that are used in circuits for either amplifying or switching electrical signals or power and allowing them to be used in a large array of electronic devices. A transistor has two PN diodes combined back to back. Also, it has three terminals named emitter, base, and collector. The fundamental idea and physical law behind a transistor are that it should let you control the flow of current over one channel by varying the intensity of a much smaller current flowing through another channel.

CIRCUIT

 

pseudocode

SET INDEX TO ZERO
AS LONG AS PROGRAM CONTINUES TO RUN:

    PLAY THE NOTE LOCATED AT THE CURRENT INDEX
    DELAY FOR THE LENGTH OF TIME AT CURRENT INDEX PLUS ONE
    SET THE INDEX TO GO UP BY TWO
    SHOULD THE INDEX EXCEED THE TOTAL NUMBER OF NOTE/FREQUENCY PAIRS:
        RESET INDEX TO ZERO

KEEP GOING

SUBMISSION

To be successful in this project, the following criteria (or their equivalent) must be met:

Submit Tool Usage

Let's say you have completed work on the project, and are ready to submit, you would do the following (assuming you have a program called uom0.c): 

lab46:~/src/SEMESTER/DESIG/PROJECT$ make submit

You should get some sort of confirmation indicating successful submission if all went according to plan. If not, check for typos and or locational mismatches.

RUBRIC

I'll be evaluating the project based on the following criteria: 

78:sss0:final tally of results (78/78)
*:sss0:used grabit to obtain project by the Sunday prior to duedate [13/13]
*:sss0:picture of unpowered breadboard to #desig for approval [7/7]
*:sss0:picture of powered breadboard to #desig showing results [6/6]
*:sss0:clean compile, no compiler messages [7/7]
*:sss0:program conforms to project specifications [32/32]
*:sss0:code tracked in lab46 semester repo [13/13]

Pertaining to the collaborative authoring of project documentation

Additionally