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| author | Wolfgang (Wolle) Ewald <wolfgang.ewald@wolles-elektronikkiste.de> | 2020-08-08 12:06:08 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-08-08 12:06:08 +0200 |
| commit | 2f8ccd2145894fabd6ce39a25f746f57cea50216 (patch) | |
| tree | 4f26e27a9d161dc7644c2cd0dc72a0a353ee1e91 | |
| parent | Create Result_Format_Options.ino (diff) | |
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| -rw-r--r-- | examples/Result_Format_Options/Result_Format_Options.ino | 87 |
1 files changed, 86 insertions, 1 deletions
diff --git a/examples/Result_Format_Options/Result_Format_Options.ino b/examples/Result_Format_Options/Result_Format_Options.ino index 8b13789..2044f2e 100644 --- a/examples/Result_Format_Options/Result_Format_Options.ino +++ b/examples/Result_Format_Options/Result_Format_Options.ino @@ -1 +1,86 @@ - +/***************************************************************************
+* 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);
+}
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