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examples/Who_Am_I/Who_Am_I.ino

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+/***************************************************************************
+* Example sketch for the ADS1115_WE library
+*
+* This sketch checks whether you have an ADS1115 or ADS1015 module. The last 
+* four bits of raw values obtained from an ADS1015 should be zero. Connect A0
+* to a voltage different from GND. The sketch also checks how much time is 
+* needed to perform ten measurements at lowest data rate, which is 128 SPS for
+* the ADS1015 and 8 SPS for the ADS1115. 
+*  
+* Further information can be found on:
+* https://wolles-elektronikkiste.de/ads1115 (German)
+* https://wolles-elektronikkiste.de/en/ads1115-a-d-converter-with-amplifier (English)
+* 
+***************************************************************************/
+
+#include<ADS1115_WE.h> 
+#include<Wire.h>
+#define I2C_ADDRESS 0x48
+
+ADS1115_WE adc = ADS1115_WE(I2C_ADDRESS);
+
+void setup() {
+  Wire.begin();
+  Serial.begin(9600);
+  if(!adc.init()){
+    Serial.println("ADS1115 not connected!");
+  }
+  adc.setVoltageRange_mV(ADS1115_RANGE_6144); 
+  adc.setCompareChannels(ADS1115_COMP_0_GND); 
+  Serial.println("ADS1115/ADS1015 Example Sketch - Who am I");
+  Serial.println("Performing 10 single ended conversions A0 vs. GND:");
+  uint16_t checkSum = 0;
+  for(int i=0; i<10; i++){
+    adc.startSingleMeasurement();
+    while(adc.isBusy()){}
+    int16_t raw = adc.getRawResult();
+    Serial.println(raw, BIN);
+    checkSum += raw & 0xF;
+  }
+  Serial.println();
+  Serial.print("Check Sum (Sum of the last 4 bits): ");
+  Serial.println(checkSum);
+
+  adc.setConvRate(ADS1115_8_SPS); // = ADS1015_128_SPS = 0x0000
+  unsigned long startingTime = millis();
+  for(int i=0; i<10; i++){
+    adc.startSingleMeasurement();
+    while(adc.isBusy()){}
+  }
+  unsigned long duration = millis() - startingTime;
+  Serial.print("Time needed for 10 conversions at slowest sample rate [ms]: ");
+  Serial.println(duration);
+  Serial.println();
+
+  if(checkSum && duration > 1000){
+    Serial.println("I am an ADS1115!");
+  }
+  else if (!checkSum && duration < 1000){
+    Serial.println("I am an ADS1015!");
+  }
+  else {
+    Serial.println("Sorry, don't know who I am!");
+  }
+}
+
+void loop() {}