const int adcpin = 33;  
const int dacpin = 26; 
int adcvalue = 0;
float sensorvalue=0;

void setup() {
  Serial.begin(115200);  

  pinMode(adcpin, INPUT);
  
}

void loop() {

 adcvalue = analogRead(adcpin);
 analogWrite(dacpin,adcvalue);
  Serial.print (adcvalue);
  sensorvalue=adcvalue*0.000805860806;
  Serial.print("  value=  ");
  Serial.print(sensorvalue);
  Serial.println(" V");
 
     
}