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examples/Result_Format_Options/Result_Format_Options.ino

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+/***************************************************************************
+* Example sketch for the ADS1115_WE library
+*
+* This sketch shall show the different options to obtain results in different  
+* skales / formats.
+*  
+* Further information can be found on:
+* https://wolles-elektronikkiste.de/ads1115
+* 
+***************************************************************************/
+
+#include<ADS1115_WE.h> 
+#include<Wire.h>
+#define I2C_ADDRESS 0x48
+
+ADS1115_WE adc(I2C_ADDRESS);
+
+void setup() {
+  Wire.begin();
+  Serial.begin(9600);
+  if(!adc.init()){
+    Serial.println("ADS1115 not connected!");
+  }
+
+  adc.setVoltageRange_mV(ADS1115_RANGE_6144); //comment line/change parameter to change range
+  adc.setCompareChannels(ADS1115_COMP_0_GND); //comment line/change parameter to change channel
+  adc.setMeasureMode(ADS1115_CONTINUOUS); //comment line/change parameter to change mode
+
+  Serial.println("ADS1115 Example Sketch - Results in different scales / formats");
+  Serial.println("All results are for channel 0 vs. GND");
+  Serial.println();
+}
+
+void loop() {
+
+  /* Output in Volt or in Millivolt is self-explaining */
+
+  float voltageInMillivolt = adc.getResult_mV(); 
+  Serial.print("Result in Millivolt          [mV]: ");
+  Serial.println(voltageInMillivolt);
+
+  float voltageInVolt = adc.getResult_V(); 
+  Serial.print("Result in Volt                [V]: ");
+  Serial.println(voltageInVolt);
+
+  /* Get the raw result from the conversion register. The conversion register 
+   * contains the conversion result of the amplified (!) voltage. This means the
+   * value depends on the voltage as well as on the voltage range. E.g. if the 
+   * voltage range is 6.144 mV (ADS1115_RANGE_6144), +32767 is 6.144 mV; if the 
+   * range is 4.096 mV, +32767 is 4.096 mV, and so on.  
+  */
+  int rawResult = adc.getRawResult();
+  Serial.print("Raw Result                       : ");
+  Serial.println(rawResult);
+
+  /* Skaling of the result to a different range: 
+   * The results in the conversion register are in a range of -32767 to +32767
+   * You might want to receive the result in a different scale, e.g. -1023 to 1023.
+   * For -1023 to 1023, and if you have chosen e.g. ADS1115_RANGE_4096, 0 Volt would 
+   * give 0 as result and 4.096 mV would give 1023. -4.096 mV would give -1023.
+  */
+  int skaledResult = adc.getResultWithRange(-1023, 1023);
+  Serial.print("Skaled result                    : ");
+  Serial.println(skaledResult);
+
+  /* Scaling of the result to a different range plus scaling to a voltage range: 
+   * You can use this variant if you also want to scale to a voltage range. E.g. in
+   * in order to get results equivalent to an Arduino UNO (10 bit, 5000 mV range), you 
+   * would choose getResultWithRange(-1023, 1023, 5000). A difference to the Arduino 
+   * UNO is that you can measure negative voltages. 
+   * You have to ensure that the voltage range you scale to is smaller than the 
+   * measuring voltage range. For this example only ADS1115_RANGE_6144 would cover the 
+   * scale up to 5000 mV. 
+  */
+  int skaledResultWithMaxVoltage = adc.getResultWithRange(-1023, 1023, 5000); 
+  Serial.print("Skaled result with voltage skale : ");
+  Serial.println(skaledResultWithMaxVoltage);
+
+  /* This function returns the voltage range ADS1115_RANGE_XXXX in Millivolt */
+  unsigned int voltRange = adc.getVoltageRange_mV();
+  Serial.print("Voltage Range of ADS1115     [mV]: ");
+  Serial.println(voltRange);
+
+  Serial.println("-------------------------------");
+  delay(2000);
+}