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

2 views (last 30 days)
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
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

Accepted Answer

Madhu Govindarajan
Madhu Govindarajan on 28 Jan 2019
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

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