diff options
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/Continuous/Continuous.ino | 283 |
1 files changed, 157 insertions, 126 deletions
diff --git a/examples/Continuous/Continuous.ino b/examples/Continuous/Continuous.ino index 3f4ca68..ce41808 100644 --- a/examples/Continuous/Continuous.ino +++ b/examples/Continuous/Continuous.ino @@ -1,126 +1,157 @@ -/*************************************************************************** -* Example sketch for the ADS1115_WE library -* -* This sketch shows how to use the ADS1115 in continuous mode. -* -* 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(I2C_ADDRESS); -// ADS1115_WE adc = ADS1115_WE(); // Alternative: uses default address 0x48 - -void setup() { - Wire.begin(); - Serial.begin(9600); - if(!adc.init()){ - Serial.println("ADS1115 not connected!"); - } - - /* Set the voltage range of the ADC to adjust the gain - * Please note that you must not apply more than VDD + 0.3V to the input pins! - * - * ADS1115_RANGE_6144 -> +/- 6144 mV - * ADS1115_RANGE_4096 -> +/- 4096 mV - * ADS1115_RANGE_2048 -> +/- 2048 mV (default) - * ADS1115_RANGE_1024 -> +/- 1024 mV - * ADS1115_RANGE_0512 -> +/- 512 mV - * ADS1115_RANGE_0256 -> +/- 256 mV - */ - adc.setVoltageRange_mV(ADS1115_RANGE_6144); //comment line/change parameter to change range - - /* Set the inputs to be compared - * - * ADS1115_COMP_0_1 -> compares 0 with 1 (default) - * ADS1115_COMP_0_3 -> compares 0 with 3 - * ADS1115_COMP_1_3 -> compares 1 with 3 - * ADS1115_COMP_2_3 -> compares 2 with 3 - * ADS1115_COMP_0_GND -> compares 0 with GND - * ADS1115_COMP_1_GND -> compares 1 with GND - * ADS1115_COMP_2_GND -> compares 2 with GND - * ADS1115_COMP_3_GND -> compares 3 with GND - */ - adc.setCompareChannels(ADS1115_COMP_0_GND); //comment line/change parameter to change channel - - /* Set number of conversions after which the alert pin asserts - * - or you can disable the alert - * - * ADS1115_ASSERT_AFTER_1 -> after 1 conversion - * ADS1115_ASSERT_AFTER_2 -> after 2 conversions - * ADS1115_ASSERT_AFTER_4 -> after 4 conversions - * ADS1115_DISABLE_ALERT -> disable comparator / alert pin (default) - */ - //adc.setAlertPinMode(ADS1115_ASSERT_AFTER_1); //uncomment if you want to change the default - - /* Set the conversion rate in SPS (samples per second) - * Options should be self-explaining: - * - * ADS1115_8_SPS - * ADS1115_16_SPS - * ADS1115_32_SPS - * ADS1115_64_SPS - * ADS1115_128_SPS (default) - * ADS1115_250_SPS - * ADS1115_475_SPS - * ADS1115_860_SPS - */ - // adc.setConvRate(ADS1115_8_SPS); //uncomment if you want to change the default - - /* Set continuous or single shot mode: - * - * ADS1115_CONTINUOUS -> continuous mode - * ADS1115_SINGLE -> single shot mode (default) - */ - adc.setMeasureMode(ADS1115_CONTINUOUS); //comment line/change parameter to change mode - - /* Choose maximum limit or maximum and minimum alert limit (window) in Volt - alert pin will - * assert when measured values are beyond the maximum limit or outside the window - * Upper limit first: setAlertLimit_V(MODE, maximum, minimum) - * In max limit mode the minimum value is the limit where the alert pin assertion will be - * cleared (if not latched) - * - * ADS1115_MAX_LIMIT - * ADS1115_WINDOW - * - */ - //adc.setAlertModeAndLimit_V(ADS1115_MAX_LIMIT, 3.0, 1.5); //uncomment if you want to change the default - - /* Enable or disable latch. If latch is enabled the alert pin will assert until the - * conversion register is read (getResult functions). If disabled the alert pin assertion will be - * cleared with next value within limits. - * - * ADS1115_LATCH_DISABLED (default) - * ADS1115_LATCH_ENABLED - */ - //adc.setAlertLatch(ADS1115_LATCH_ENABLED); //uncomment if you want to change the default - - /* Sets the alert pin polarity if active: - * - * ADS1115_ACT_LOW -> active low (default) - * ADS1115_ACT_HIGH -> active high - */ - //adc.setAlertPol(ADS1115_ACT_LOW); //uncomment if you want to change the default - - /* With this function the alert pin will assert, when a conversion is ready. - * In order to deactivate, use the setAlertLimit_V function - */ - //adc.setAlertPinToConversionReady(); //uncomment if you want to change the default - - Serial.println("ADS1115 Example Sketch - Continuous Mode"); - Serial.println(); -} - -void loop() { - float voltage = 0.0; - voltage = adc.getResult_V(); // alternative: getResult_mV for Millivolt - Serial.print("Channel 0 vs GND [V]: "); - Serial.println(voltage); - Serial.println("-------------------------------"); - delay(2000); -} +/***************************************************************************
+* Example sketch for the ADS1115_WE library
+*
+* This sketch shows how to use the ADS1115 in continuous mode.
+*
+* 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(I2C_ADDRESS);
+// ADS1115_WE adc = ADS1115_WE(); // Alternative: uses default address 0x48
+
+void setup() {
+ Wire.begin();
+ Serial.begin(9600);
+ if(!adc.init()){
+ Serial.println("ADS1115 not connected!");
+ }
+
+ /* Set the voltage range of the ADC to adjust the gain
+ * Please note that you must not apply more than VDD + 0.3V to the input pins!
+ *
+ * ADS1115_RANGE_6144 -> +/- 6144 mV
+ * ADS1115_RANGE_4096 -> +/- 4096 mV
+ * ADS1115_RANGE_2048 -> +/- 2048 mV (default)
+ * ADS1115_RANGE_1024 -> +/- 1024 mV
+ * ADS1115_RANGE_0512 -> +/- 512 mV
+ * ADS1115_RANGE_0256 -> +/- 256 mV
+ */
+ adc.setVoltageRange_mV(ADS1115_RANGE_6144); //comment line/change parameter to change range
+
+ /* Set the inputs to be compared
+ *
+ * ADS1115_COMP_0_1 -> compares 0 with 1 (default)
+ * ADS1115_COMP_0_3 -> compares 0 with 3
+ * ADS1115_COMP_1_3 -> compares 1 with 3
+ * ADS1115_COMP_2_3 -> compares 2 with 3
+ * ADS1115_COMP_0_GND -> compares 0 with GND
+ * ADS1115_COMP_1_GND -> compares 1 with GND
+ * ADS1115_COMP_2_GND -> compares 2 with GND
+ * ADS1115_COMP_3_GND -> compares 3 with GND
+ */
+ adc.setCompareChannels(ADS1115_COMP_0_GND); //comment line/change parameter to change channel
+
+ /* Set number of conversions after which the alert pin asserts
+ * - or you can disable the alert
+ *
+ * ADS1115_ASSERT_AFTER_1 -> after 1 conversion
+ * ADS1115_ASSERT_AFTER_2 -> after 2 conversions
+ * ADS1115_ASSERT_AFTER_4 -> after 4 conversions
+ * ADS1115_DISABLE_ALERT -> disable comparator / alert pin (default)
+ */
+ //adc.setAlertPinMode(ADS1115_ASSERT_AFTER_1); //uncomment if you want to change the default
+
+ /* Set the conversion rate in SPS (samples per second)
+ * Options should be self-explaining:
+ *
+ * ADS1115_8_SPS
+ * ADS1115_16_SPS
+ * ADS1115_32_SPS
+ * ADS1115_64_SPS
+ * ADS1115_128_SPS (default)
+ * ADS1115_250_SPS
+ * ADS1115_475_SPS
+ * ADS1115_860_SPS
+ */
+ // adc.setConvRate(ADS1115_8_SPS); //uncomment if you want to change the default
+
+ /* Set continuous or single shot mode:
+ *
+ * ADS1115_CONTINUOUS -> continuous mode
+ * ADS1115_SINGLE -> single shot mode (default)
+ */
+ adc.setMeasureMode(ADS1115_CONTINUOUS); //comment line/change parameter to change mode
+
+ /* Choose maximum limit or maximum and minimum alert limit (window) in Volt - alert pin will
+ * assert when measured values are beyond the maximum limit or outside the window
+ * Upper limit first: setAlertLimit_V(MODE, maximum, minimum)
+ * In max limit mode the minimum value is the limit where the alert pin assertion will be
+ * cleared (if not latched)
+ *
+ * ADS1115_MAX_LIMIT
+ * ADS1115_WINDOW
+ *
+ */
+ //adc.setAlertModeAndLimit_V(ADS1115_MAX_LIMIT, 3.0, 1.5); //uncomment if you want to change the default
+
+ /* Enable or disable latch. If latch is enabled the alert pin will assert until the
+ * conversion register is read (getResult functions). If disabled the alert pin assertion will be
+ * cleared with next value within limits.
+ *
+ * ADS1115_LATCH_DISABLED (default)
+ * ADS1115_LATCH_ENABLED
+ */
+ //adc.setAlertLatch(ADS1115_LATCH_ENABLED); //uncomment if you want to change the default
+
+ /* Sets the alert pin polarity if active:
+ *
+ * ADS1115_ACT_LOW -> active low (default)
+ * ADS1115_ACT_HIGH -> active high
+ */
+ //adc.setAlertPol(ADS1115_ACT_LOW); //uncomment if you want to change the default
+
+ /* With this function the alert pin will assert, when a conversion is ready.
+ * In order to deactivate, use the setAlertLimit_V function
+ */
+ //adc.setAlertPinToConversionReady(); //uncomment if you want to change the default
+
+ Serial.println("ADS1115 Example Sketch - Continuous Mode");
+ Serial.println("All values in volts");
+ Serial.println();
+}
+
+ /* If you change the compare channels you can immediately read values from the conversion
+ * register, although they might belong to the former channel if no precautions are taken.
+ * It takes about the time needed for two conversions to get the correct data. In single
+ * shot mode you can use the isBusy() function to wait for data from the new channel. This
+ * does not work in continuous mode.
+ * To solve this issue the library adds a delay after change of channels if you are in contunuous
+ * mode. The length of the delay is adjusted to the conversion rate. But be aware that the output
+ * rate will be much lower that the conversion rate if you change channels frequently.
+ */
+
+void loop() {
+ float voltage = 0.0;
+
+ Serial.print("0: ");
+ voltage = readChannel(ADS1115_COMP_0_GND);
+ Serial.print(voltage);
+
+ Serial.print(", 1: ");
+ voltage = readChannel(ADS1115_COMP_1_GND);
+ Serial.print(voltage);
+
+ Serial.print(", 2: ");
+ voltage = readChannel(ADS1115_COMP_2_GND);
+ Serial.print(voltage);
+
+ Serial.print(", 3: ");
+ voltage = readChannel(ADS1115_COMP_3_GND);
+ Serial.println(voltage);
+
+ delay(1000);
+}
+
+float readChannel(ADS1115_MUX channel) {
+ float voltage = 0.0;
+ adc.setCompareChannels(channel);
+ voltage = adc.getResult_V(); // alternative: getResult_mV for Millivolt
+ return voltage;
+}
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