Hello Everybody,
i am writing my BA thesis in Electrical eng. and i have to control a PWM Fan with arduino using matlab.
First i connected external 12V to the fan and it rotates at it's max.
second i connected the PWM's fan to my arduino PWM pin (5)
i opened GUI in Matlab and added two Pusch buttons for one ON and the other for OFF
i used the code writeDigitalPin(a,'D5',0) and write PWMVoltage(a,'D5',0) but both didn't work..
do you have any idea how to control the fan using PWM? to let it rotate and stop and change the speed?
thank in advance
function varargout = yarabb(varargin)
% YARABB MATLAB code for yarabb.fig
% YARABB, by itself, creates a new YARABB or raises the existing
% singleton*.
%
% H = YARABB returns the handle to a new YARABB or the handle to
% the existing singleton*.
%
% YARABB('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in YARABB.M with the given input arguments.
%
% YARABB('Property','Value',...) creates a new YARABB or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before yarabb_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to yarabb_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 yarabb
% Last Modified by GUIDE v2.5 24-May-2022 10:57:56
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @yarabb_OpeningFcn, ...
'gui_OutputFcn', @yarabb_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 yarabb is made visible.
function yarabb_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 yarabb (see VARARGIN)
% Choose default command line output for yarabb
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes yarabb wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = yarabb_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;
clear all;
global a;
a = arduino();
% --- Executes on button press in Clockwise.
function Clockwise_Callback(hObject, eventdata, handles)
% hObject handle to Clockwise (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
global a;
writeDigitalPin(a,'D5',1);
%writePWMVoltage(a,'D5',5);
pause(0.5);
% --- Executes on button press in Anti.
function Anti_Callback(hObject, eventdata, handles)
% hObject handle to Anti (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
global a;
writeDigitalPin(a,'D5',1);
pause(0,5)
% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton3 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
global a;
writeDigitalPin(a,'D5',0);%i set the pin 5 to 0 but it still rotates when i push the stop button
%writePWMVoltage(a,'D5',0); % i tried also with this code but it didnt work
pause(0.5);
