How to make a step function from 2 volts to 2.5 volts in matlab using Arduino? (without Simulink and step matlab function itself)

Question

Jonathan Bijman 2019-1-28

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/441794-how-to-make-a-step-function-from-2-volts-to-2-5-volts-in-matlab-using-arduino-without-simulink-and

回答： Jonathan Bijman 2019-1-31

采纳的回答： Madhu Govindarajan

Hi everyone

Recently I asked how can I make a step function with writePWMVoltage in arduino MEGA 2560 and matlab.

The idea is to pass from 2 volts to 2.5 volts. Here is my program:

clc

clear all

a = arduino;

writePWMVoltage(a,'D5',2);

for k = 1:1000

writePWMVoltage(a,'D5',2);

if k>=250

writePWMVoltage(a,'D5',2.5);

end

When I do this, in some point the voltimeter sizes 2,23 volts before to reach 2.5 volts, and I need the function step (from 2 volts direct to 2,5 volts)

Can you help me please?

Thank you

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Answer 1

Madhu Govindarajan 2019-1-28

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/441794-how-to-make-a-step-function-from-2-volts-to-2-5-volts-in-matlab-using-arduino-without-simulink-and#answer_358310

在 MATLAB Online 中打开

What if you changed your code to the following -

clc
clear all
a = arduino;
writePWMVoltage(a,'D5',2);
for k = 1:1000
   if k>=250
    writePWMVoltage(a,'D5',2.5);
   else 
    writePWMVoltage(a,'D5',2);
   end
end 