MatLab GUI accelerometer reading DATA

Question

Amed 2013-2-8

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/62734-matlab-gui-accelerometer-reading-data

Hello, as of right now i'm trying to read in accelerometer data to my MatLab gui thru a pushbutton.. So far here is my code

function pushbutton6_Callback(hObject, eventdata, handles)
%mapping between analog inputs and X,Y,Z axes.
        %     Xch = 1;
        %     Ych = 3;
        %     Zch = 2;
            fprintf(out.s,'R');
            %read voltages from accelerometer and reorder
            reordered(1)= fscanf(out.s,'%u');
            reordered(2)= fscanf(out.s,'%u');
            reordered(3)= fscanf(out.s,'%u');
            %determine what offset and gain values to use
            offset = calCo.offset;
            gain = calCo.g;
            accel = (reordered - offset) ./ gain;
            %map analog inputs to axes
            handles.gx = accel(1);
            handles.gy = accel(2);
            handles.gz = accel(3);
            guidata(hObject, handles)

This code was partially written for me. I'm trying to understand it since i've only been using matlab for 3 weeks. Can anybody help me what i'm doing wrong? I have a button for calibrating and a button for reading in the serial, but as of right now i'm trying to read actual data and later graph.

THANKS

FIrst problem fixed... scroll down below for the new problem I cannot seem to fix.. THANKS

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Amed 2013-2-8

在 MATLAB Online 中打开

That is not the entire code. Here is the entire written code

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @BW2_OpeningFcn, ...
                   'gui_OutputFcn',  @BW2_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 BW2 is made visible.
function BW2_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 BW2 (see VARARGIN)
% Choose default command line output for BW2
handles.output = hObject;
set(handles.pushbutton1, 'UserData', 0);
% Update handles structure
guidata(hObject, handles);
handles.gx= 0;
handles.gy= 0;
% UIWAIT makes BW2 wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = BW2_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 pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
counter = get(hObject, 'UserData') + 1;
set(hObject, 'UserData', counter);
set(handles.text1, 'String', sprintf('%d', counter));
Tstart = tic/(1000000000);
set(handles.text8,'String',Tstart);
guidata(hObject, handles);
% SERIAL READ -- PUSHBUTTON 2
function pushbutton2_Callback(hObject, eventdata, handles)
handles.comPort = '/dev/tty.usbmodemfd121';
if (~exist('serialFlag','var'))
    [handles.accelerometer.s,handles.serialFlag] = ...
        setupSerial(handles.comPort);
end
set(handles.text3,'String','FINISHED');
guidata(hObject, handles);
% --- CALIBRATE -- PUSHBUTTON 3
function pushbutton3_Callback(hObject, eventdata, handles)
if(~exist('handles.calCo', 'var'))
    handles.calCo = calibrate(handles.accelerometer.s);
end
set(handles.text6,'String','FINISHED');
guidata(hObject, handles);
% STOP/START -- PUSHBUTTON4
function pushbutton4_Callback(hObject, eventdata, handles)
handles.str = get(handles.pushbutton4,'String');
if strcmp(handles.str,'Start')
    set(handles.text5,'String','Starting')
    guidata(hObject, handles);
else
    set(handles.text5,'String','Starting')
    guidata(hObject, handles);
end
% START DATA - PUSHBUTTON6
function pushbutton6_Callback(hObject, eventdata, handles)
[gx, gy gz] = readAcc(accelerometer,calCo);
              fprintf(accelerometer.s,'R');
              %read voltages from accelerometer and reorder
              reordered(1)= fscanf(accelerometer.s,'%u');
              reordered(2)= fscanf(accelerometer.s,'%u');
              reordered(3)= fscanf(accelerometer.s,'%u');
              %determine what offset and gain values to use
              offset = calCo.offset;
              gain = calCo.g;
              accel = (reordered - offset) / gain;
              %map analog inputs to axes
              handles.gx = accel(1);
              handles.gy = accel(2);
              handles.gz = accel(3);
              guidata(hObject, handles)
              handles.gx
              handles.gy
              handles.gz
% --- Executes on button press in pushbutton7.
function pushbutton7_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton7 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
closeSerial
% --- Executes on button press in pushbutton8.
function pushbutton8_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton8 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

Pushbutton6 is where i'm trying to read in data. I've updated it if you see above.

Amed 2013-2-8

在 MATLAB Online 中打开

OK so I got my accelerometer data to read out, but for some reason my Pushbutton7 won't close serial AS SEEN ABOVE in the code. It worked perfectly before, but now it won't.

I had to manually close it by ctrl+c and then some random graph popped up? How do I delete this graph?

Here is my code to run the data thru pushbutton6 % START DATA - PUSHBUTTON6 function pushbutton6_Callback(hObject, eventdata, handles)

%COMPORT
comPort = '/dev/tty.usbmodemfd121';
%READS SERIAL
if (~exist('serialFlag','var'))
 [accelerometer.s,serialFlag] = setupSerial(comPort);
end
%CALIBRATES
if(~exist('calCo', 'var'))
    calCo = calibrate(accelerometer.s);
end
%DEFINEING H AND BUTTON VARIABLES
if(~exist('h', 'var') || ~ishandle(h))
    h = figure(1);
end
if(~exist('button','var'))
    button = uicontrol('Style','pushbutton','String','Stop',...
                    'pos',[0 0 50 25],'parent',h,...
                    'Callback','stop_call_vector','UserData',1);
end
%READS DATA
while(get(button, 'UserData'))
      [gx gy gz] = readAcc(accelerometer,calCo);
  cla;
      r = sqrt((gx^2)+(gy^2)+(gy^2));
      gx
      gy
      gz
      r
end

Amed 2013-2-8

any takers on the problem above

Walter Roberson 2013-2-8

在 MATLAB Online 中打开

Note: the lines

guidata(hObject, handles);
handles.gx= 0;
handles.gy= 0;

should have the assignments before the guidata() call.

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MatLab GUI accelerometer reading DATA

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