x気になる人よう

目的
adcのテスト用
式が難しく、範囲が広いために分割してテストしてます。あしからず。
式が正しいことが分かった。



void setup() {
  Serial.begin(9600);
}

int sensorValue; //センサーの読み取り値
float Voltage;     //電圧
float ir_length;   //長さ

void loop() {

  sensorValue = analogRead(A0);
  Voltage = (float)sensorValue * ( 5.0 / 1024.0 );
  if (Voltage >= 0 && Voltage <= 2.2)   {Voltage = 2.2;}
  if (Voltage >= 3.22 && Voltage <= 5.0) {Voltage = 3.22;}

  if        (Voltage >= 2.3 && Voltage <= 2.75)  { //10-8
    
    ir_length = 1.0/ ( 0.1 + ( ( Voltage - 2.3) * (0.025/0.45) ) );
    
  } else if (Voltage >= 2.75 && Voltage <= 2.98) { //8-7
    
    ir_length = 1.0/ ( 0.125 + ( ( Voltage - 2.75) * (0.0179/0.23) ) );
    
  } else if (Voltage >= 2.98 && Voltage <= 3.12) { //7-6
    
    ir_length = 1.0/ ( 0.1429 + ( ( Voltage - 2.98) * (0.0238/0.14) ) );
    
  }
  
  //Serial.println(sensorValue);
  Serial.print("230");
  Serial.print(",");
  Serial.print( Voltage*100);
  Serial.print(",");
  Serial.print("312");
  Serial.print(",");
  Serial.print("60");
  Serial.print(",");
  Serial.print( ir_length*10 );
  Serial.print(",");  
  Serial.println("100");
  
  delay(10);
}

配列化


#include <stdio.h>
int main(void){
    
    int ii;
    int s=0;
    
unsigned char oo[]={
100,99,98,98,97,97,96,96,95,95,
94,94,93,93,92,92,91,91,90,90,
90,89,89,88,88,87,87,86,86,86,
85,85,84,84,84,83,83,82,82,82,
81,81,81,80,80,80,79,79,78,78,
77,77,76,76,75,75,74,74,74,73,
73,72,72,71,71,71,70,70,69,69,
68,67,66,66,65,64,63,63,62,61,
61,60,60
};
    
    
    
    for(ii = 2300;ii <= 3120;ii=ii+10) {
        
        s=(ii-2300)/10;

        printf("%d \t %d \n",ii,oo[s]);
        
    }//ii
    
}//main