/*

 * The grip stick is a device that measures how much pressure someone's grip is exerting on the stick. If it falls into the correct range, the led turns on.

* I would use this device when I coach squash to teach people how hard they should be gripping the racquet

 */

int sensorPin = 0;  // select the input pin for the sensor

int ledPin = 11;    // select the output pin for the LED

int val = 0;        // variable to store the value coming from the sensor

void setup() {

  Serial.begin(9600);

}

void loop() {

  val = analogRead(sensorPin); // read the value from the sensor, 0-1023

  if (val > 570 && val < 840) {

    analogWrite(ledPin, val);

  } else {

    analogWrite(ledPin, 0);   

  } // analogWrite (dimming the LED) can be between 0-255

  Serial.println(val);       // writing the value to the PC via serial connection 

  delay(5);                   // rest a little...

}