Douglas Butler ● March 29, 2013
● ● Coded in
C int16 adcval,sum,max,min;
int8 i;
#define samples 10
max=0;
min=0xFFFF; //Set max and min to the limits of the range.
for (i=0;i<samples;i++){
adcval=read_adc();
if (adcval>max) max=adcval; //Update max and min on the fly.
if (adcval<min) min=adcval;
sum+=adcval; //Generate sum of all samples.
}
sum-=max; //Remove the maximum, and minimum values
sum-=min; //as likely outliers.
return(sum/(samples-2)); //Average the remaining total.
//If samples = 10 then the division becomes sum<<3
