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You are here: Home / Topics / how to reduce the resolution of adc

how to reduce the resolution of adc

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Microcontroller › AVR › how to reduce the resolution of adc

  • This topic has 5 replies, 3 voices, and was last updated 11 years, 7 months ago by himanshu mittal.
Viewing 6 posts - 1 through 6 (of 6 total)
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  • September 12, 2014 at 8:06 am #3255
    himanshu mittal
    Participant

    sir/mam, I am trying to interface the flex sensor  but adc value got fluctuating..i don’t know how to decrease the resolution of adc in avr please help

    September 12, 2014 at 11:45 am #12158
    AJISH ALFRED
    Participant

    Which avr are you using? The better method would be to take average of many adc reading, say 50 or 100 which are taken a time window of 500 milliseconds.

    September 12, 2014 at 12:04 pm #12162
    himanshu mittal
    Participant

    i am using atmega 16. if u please tell me how to take the average value?

    September 12, 2014 at 8:55 pm #12166
    Ashutosh Bhatt
    Participant

    the value should not fluctuate

    there should be some other problem. pls check ur hardware connection. power supply connections

    September 13, 2014 at 4:35 am #12170
    AJISH ALFRED
    Participant

    If you take continuous reading from any kind of sensors the adc value can change within a rage of 50 to 100 each time when you take a rading. To get the average value of say 100 readings took in a short interval of time, keep on adding every single value to a single variable each time when you take a rading and once 100 readings are finished, divide that variable with 100 and you have the average value.

    September 13, 2014 at 6:23 am #12173
    himanshu mittal
    Participant

    thank you for your help

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