ADS_read_RDY.ino

//
//    FILE: ADS_read_RDY.ino
//  AUTHOR: Rob.Tillaart
// PURPOSE: read analog inputs - straightforward.
//     URL: https://github.com/RobTillaart/ADS1X15

//  test
//  connect 1 potentiometer per port.
//
//  GND ---[   x   ]------ 5V
//             |
//
//  measure at x (connect to AIN0).
//

//  EXPERIMENTAL
//
//  The ALERT/RDY pin is triggered when threshold is exceeded.
//


#include "ADS1X15.h"

ADS1115 ADS(0x48);


void setup()
{
  Serial.begin(115200);
  Serial.println(__FILE__);
  Serial.print("ADS1X15_LIB_VERSION: ");
  Serial.println(ADS1X15_LIB_VERSION);

  Wire.begin();

  ADS.begin();
  ADS.setGain(0);      //  6.144 volt
  ADS.setDataRate(7);  //  0 = slow   4 = medium   7 = fast
  ADS.setMode(1);      //  continuous mode
  ADS.readADC(0);      //  first read to trigger

  //  set the thresholds to Trigger RDY pin
  ADS.setComparatorThresholdLow(0x0000);
  ADS.setComparatorThresholdHigh(0x0200);
  ADS.setComparatorQueConvert(0);             //  enable RDY pin !!
  ADS.setComparatorLatch(0);
}


void loop()
{
  ADS.setGain(0);

  int16_t val_0 = ADS.readADC(0);

  float f = ADS.toVoltage(1);   //  voltage factor

  Serial.print("\tAnalog0: ");
  Serial.print(val_0);
  Serial.print('\t');
  Serial.println(val_0 * f, 3);

  delay(1000);
}


//  -- END OF FILE --