/*www.theorycircuit.com*/

const int flexpin = 0; 
int led = 13;

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


void loop() 
{ 
  int flexposition;    // Input value from the analog pin.
  
                      
  flexposition = analogRead(flexpin); // Read the position of the flex sensor (0 to 1023):

  analogWrite(led, flexposition);

  Serial.print("sensor: ");
  Serial.print(flexposition);
  

  delay(20);  
}