is this code right?

Want to write a code which answers the following qn:

Read the value (name the variable flexValue) of a “flex sensor” that is connected to analog input AN0 of the Arduino. The value will be a 10-bit integer number having a value between 0 and 1023 inclusive, although flexing the sensor strip might not give values that cover the full range.

MY CODE:

// the setup routine runs once when you press reset: void setup() { // initialize serial communication at 9600 bits per second: Serial.begin(9600); }

// the loop routine runs over and over again forever: void loop() { // read the input on analog pin 0: int flexValue = analogRead(A0); // print out the value you read: Serial.print(flexValue); delay(1); // delay in between reads for stability }

Is this correct?

Thanks.

delay (1) = 1 millisecond try 250-1000 for a 1/4 - 1 second delay

else it looks ok

you could add a vairable for the analog read, to make easier changes to the program

https://www.arduino.cc/en/Tutorial/AnalogInput

oh i see.

Thank you!

Does this look better and answer the qn better?

// assign variable flexValue value of analog input AN0 flexValue = analogRead(A0);

// the setup routine runs once when you press reset: void setup() { // initialize serial communication at 9600 bits per second: Serial.begin(9600); }

// the loop routine runs over and over again forever: void loop() { // read the input on analog pin 0: int flexValue = analogRead(A0); // print out the value you read: Serial.print(flexValue); delay(1000); // delay in between reads for stability }

If what u need is reading an int number as u said the code should be ok. But if u want to estimate the bend angle and the resistance, this code should help u

/******************************************************************************
Create a voltage divider circuit combining a flex sensor with a 47k resistor.
- The resistor should connect from A0 to GND.
- The flex sensor should connect from A0 to 3.3V
As the resistance of the flex sensor increases (meaning it's being bent), the
voltage at A0 should decrease.

Development environment specifics:
Arduino 1.6.7
******************************************************************************/
const int FLEX_PIN = A0; // Pin connected to voltage divider output

// Measure the voltage at 5V and the actual resistance of your
// 47k resistor, and enter them below:
const float VCC = 4.98; // Measured voltage of Ardunio 5V line
const float R_DIV = 47500.0; // Measured resistance of 3.3k resistor

// Upload the code, then try to adjust these values to more
// accurately calculate bend degree.
const float STRAIGHT_RESISTANCE = 37300.0; // resistance when straight
const float BEND_RESISTANCE = 90000.0; // resistance at 90 deg

void setup() 
{
  Serial.begin(9600);
  pinMode(FLEX_PIN, INPUT);
}

void loop() 
{
  // Read the ADC, and calculate voltage and resistance from it
  int flexADC = analogRead(FLEX_PIN);
  float flexV = flexADC * VCC / 1023.0;
  float flexR = R_DIV * (VCC / flexV - 1.0);
  Serial.println("Resistance: " + String(flexR) + " ohms");

  // Use the calculated resistance to estimate the sensor's
  // bend angle:
  float angle = map(flexR, STRAIGHT_RESISTANCE, BEND_RESISTANCE,
                   0, 90.0);
  Serial.println("Bend: " + String(angle) + " degrees");
  Serial.println();

  delay(500);
}

Note: The code is taken from sparkfun website as it says, u could look it up under : flex sensor hookup guide.

try this if you just want to read the values from the pin

int flexPin = A0;

void setup() { // initialize serial communication at 9600 bits per second: Serial.begin(9600); pinmode (flexPin, INPUT); }

void loop() { // read the input on analog pin and print out the value Serial.print( analogRead(flexPin) );

delay(1000); // delay in between reads for stability }