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simulation after frequency explanation

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src/core-concepts/pwm/index.md
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@ -99,6 +99,28 @@ The percentage of time the signal is on during one cycle.
<span style="text-align: center;display: block; margin: auto; font-size: 12px;">Image Credit: Wikipedia</span>
## Period and Frequency
Period is the total time for one on-off cycle to complete.
The frequency of a PWM signal is the number of cycles it completes in one second, measured in Hertz (Hz). Frequency is the inverse of the period. So, a higher frequency means a shorter period, resulting in faster switching between HIGH and LOW states.
\\[
\text{Frequency (Hz)} = \\frac{1}{\text{Period (s)}}
\\]
So if the period is 1 second, then the frequency will be 1HZ.
\\[
1 \text{Hz} = \\frac{1 \text{ cycle}}{1 \text{ second}} = \\frac{1}{1 \text{ s}}
\\]
For example, if the period is 20ms(0.02s), the frequency will be 50Hz.
\\[
\text{Frequency} = \\frac{1}{20 \text{ ms}} = \\frac{1}{0.02 \text{ s}} = 50 \text{ Hz}
\\]
## PWM Simulation
Here is the interactive simulation. Use the sliders to adjust the duty cycle and frequency, and watch how the pulse width and LED brightness change.
@ -122,26 +144,6 @@ Here is the interactive simulation. Use the sliders to adjust the duty cycle and
<!-- <span id="frequencyValue">x</span> Hz -->
</div>
## Period and Frequency
Period is the total time for one on-off cycle to complete.
The frequency of a PWM signal is the number of cycles it completes in one second, measured in Hertz (Hz). Frequency is the inverse of the period. So, a higher frequency means a shorter period, resulting in faster switching between HIGH and LOW states.
\\[
\text{Frequency (Hz)} = \\frac{1}{\text{Period (s)}}
\\]
So if the period is 1 second, then the frequency will be 1HZ.
\\[
1 \text{Hz} = \\frac{1 \text{ cycle}}{1 \text{ second}} = \\frac{1}{1 \text{ s}}
\\]
For example, if the period is 20ms(0.02s), the frequency will be 50Hz.
\\[
\text{Frequency} = \\frac{1}{20 \text{ ms}} = \\frac{1}{0.02 \text{ s}} = 50 \text{ Hz}
\\]
**Calculating Cycle count from Frequency per second**