I want to implement a filter into my ADC measurement, because my display second digit is always changing. Whatīs the best way to do it and have a correct value?
I'm using PIC16F872 with ADC 10bits.
Thank you.
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I want to implement a filter into my ADC measurement, because my display second digit is always changing. Whatīs the best way to do it and have a correct value?
I'm using PIC16F872 with ADC 10bits.
Thank you.
Take a number of samples, sum and average...
Personally, I take it a stage further..
1. Take a number of samples... eg 16...
2. Sort in numeric Sequence...
3. Junk the Top Four and Bottom Four (this removes any serious anomalies)...
4. Sum and average the eight remaining...
I already did that... When I posted the question I realized the solution :)
But I canīt take more than 12 samples and make the average, because my display brightness decrease! The ideia to remove the Top Four and Bottom Four itīs great, i already didnīt do that!
Regards
Leonel Monteiro
Refresh the LED display between the samples.
The software-only solution sounds great, but if you'd rather not deal with the extra code, how about a 0.1 uf (or larger) capacitor across the input?
Regards,
Anand