LED bar graph audio level with peak hold fall down effect.

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Jestin_cubetech

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how to make a peak hold fall down effect using c language.




peak hold fall down effect

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peak hold fall down effect sample video
 

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  • led audio level peak hold video demo.rar
    2.1 MB · Views: 129

that is the question.
how to make a peak hold fall down effect using c language.

hardware: 10 level LED graph,atmega32
a simple peak level indicator in c language is easy,just read ADC and plot the maximum value.
then, how to make a peak hold fall down effect .

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Venkadesh_M said:
You have to OR the output with another variable which holds the peak value as LSB to MSB values..
Click to expand...

what about a slow fall down effect ?
 

If you already have the code for other operations then post it I think i can modify

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----------------------- LOGIC -----------------------

Run a background timer of (say) .25 sec, that will give interrupt for every 0.25 sec..

after that there will be the variable which will decrement(shift) for every interrupt and also load the value of ordinary peak detector if it is more than the new variable..

in while do as i already said...
 

atmega-32 single bar graph LED Proteus File
 

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  • AUDIO_LEVEL.rar
    21.9 KB · Views: 74


i follow the similar logic without timer.
 

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