Please, solve the following programming problem using MATLAB. Comment for which

Question

Please, solve the following programming problem using MATLAB. Comment for which portion of code does what will be very much appreciated.

The seven-segment LED (Light Emitting Diode) or LCD (Liquid Crystal Display) type displays, provide a very convenient way of displaying information or digital data in the form of numbers, letters or even alpha-numerical characters Typically, seven-segment displays consist of seven individual coloured LED's (called the segments), within one single display package. In order to produce the required numbers from 0 to 9, respectively, on the display, the correct combination of LED segments need to be illuminated. A standard seven-segment LED display generally has 8 input connections, one for each LED segment (see the following figure: Individual segments are indicated by a b, c, d,e, f, g, respectively) and one that acts as a common terminal or connection for all the internal display segments. So in order to display the number 3 for example, segments a, b, c, d and g would need to be illuminated. If we wanted to display a different number, then a different set of segments would need to be illuminated In this task, you will design a BCD to seven-segment decoder, which takes a 4-bit input representing a number from 0 to 9 and generates an appropriate 7-bit output to illuminate the appropriate elements of the display to represent the digit. The design steps below are to assist you to complete this task:

Explanation / Answer

function varargout = LED_blink_arduino(varargin)

% LED_BLINK_ARDUINO MATLAB code for LED_blink_arduino.fig

% LED_BLINK_ARDUINO, by itself, creates a new LED_BLINK_ARDUINO or raises the existing

% singleton*.

%

% H = LED_BLINK_ARDUINO returns the handle to a new LED_BLINK_ARDUINO or the handle to

% the existing singleton*.

%

% LED_BLINK_ARDUINO('CALLBACK',hObject,eventData,handles,...) calls the local

% function named CALLBACK in LED_BLINK_ARDUINO.M with the given input arguments.

%

% LED_BLINK_ARDUINO('Property','Value',...) creates a new LED_BLINK_ARDUINO or raises the

% existing singleton*. Starting from the left, property value pairs are

% applied to the GUI before LED_blink_arduino_OpeningFcn gets called. An

% unrecognized property name or invalid value makes property application

% stop. All inputs are passed to LED_blink_arduino_OpeningFcn via varargin.

%

% *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one

% instance to run (singleton)".

%

% See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help LED_blink_arduino

% Last Modified by GUIDE v2.5 13-Jul-2014 19:16:07

% Begin initialization code - DO NOT EDIT

gui_Singleton = 1;

gui_State = struct('gui_Name', mfilename, ...

'gui_Singleton', gui_Singleton, ...

'gui_OpeningFcn', @LED_blink_arduino_OpeningFcn, ...

'gui_OutputFcn', @LED_blink_arduino_OutputFcn, ...

'gui_LayoutFcn', [] , ...

'gui_Callback', []);

if nargin && ischar(varargin{1})

gui_State.gui_Callback = str2func(varargin{1});

end

if nargout

[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});

else

gui_mainfcn(gui_State, varargin{:});

end

% End initialization code - DO NOT EDIT

% --- Executes just before LED_blink_arduino is made visible.

function LED_blink_arduino_OpeningFcn(hObject, eventdata, handles, varargin)

% This function has no output args, see OutputFcn.

% hObject handle to figure

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% varargin command line arguments to LED_blink_arduino (see VARARGIN)

% Choose default command line output for LED_blink_arduino

handles.output = hObject;

%choose which webcam (winvideo-1) and which mode (YUY2_176x144)

vid = videoinput('winvideo', 1, 'YUY2_640x480');

% only capture one frame per trigger, we are not recording a video

vid.FramesPerTrigger = 1;

% output would image in RGB color space

vid.ReturnedColorspace = 'rgb';

% tell matlab to start the webcam on user request, not automatically

triggerconfig(vid, 'manual');

% we need this to know the image height and width

vidRes = get(vid, 'VideoResolution');

% image width

imWidth = vidRes(1);

% image height

imHeight = vidRes(2);

% number of bands of our image (should be 3 because it's RGB)

nBands = get(vid, 'NumberOfBands');

% create an empty image container and show it on axPreview

hImage = image(zeros(imHeight, imWidth, nBands), 'parent', handles.axes1);

% begin the webcam preview

preview(vid, hImage);

% Update handles structure

%im=imread('D:ARDUINO_MATLAB_blogpost r12.jpg');

im2=imread('D:ARDUINO_MATLAB_blogpostcommunity logo.jpg');

imshow(im2,'Parent',handles.axes2);

%imshow(im2,'Parent',handles.axes3);

guidata(hObject, handles);

% UIWAIT makes LED_blink_arduino wait for user response (see UIRESUME)

% uiwait(handles.figure1);

% --- Outputs from this function are returned to the command line.

function varargout = LED_blink_arduino_OutputFcn(hObject, eventdata, handles)

% varargout cell array for returning output args (see VARARGOUT);

% hObject handle to figure

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure

varargout{1} = handles.output;

% --- Executes on button press in Connect_arduino.

function Connect_arduino_Callback(hObject, eventdata, handles)

% hObject handle to Connect_arduino (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

handles.output = hObject;

global s

handles.s=s;

handles.s=serial('COM3','BAUD', 9600);

fopen(handles.s);

guidata(hObject, handles);

% --- Executes on button press in ON_LED.

function ON_LED_Callback(hObject, eventdata, handles)

% hObject handle to ON_LED (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

fprintf(handles.s,100);

% --- Executes on button press in OFF_LED.

function OFF_LED_Callback(hObject, eventdata, handles)

% hObject handle to OFF_LED (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

fprintf(handles.s,101);

% --- Executes on button press in pushbutton4.

function pushbutton4_Callback(hObject, eventdata, handles)

% hObject handle to pushbutton4 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

close all

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