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authorWolfgang (Wolle) Ewald <wolfgang.ewald@wolles-elektronikkiste.de>2021-02-18 23:28:40 +0100
committerGitHub <noreply@github.com>2021-02-18 23:28:40 +0100
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-rw-r--r--examples/Single_Shot_Conv_Ready_Alert_Controlled/Single_Shot_Conv_Ready_Alert_Controlled.ino145
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diff --git a/examples/Single_Shot_Conv_Ready_Alert_Controlled/Single_Shot_Conv_Ready_Alert_Controlled.ino b/examples/Single_Shot_Conv_Ready_Alert_Controlled/Single_Shot_Conv_Ready_Alert_Controlled.ino
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--- a/examples/Single_Shot_Conv_Ready_Alert_Controlled/Single_Shot_Conv_Ready_Alert_Controlled.ino
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@@ -1,145 +0,0 @@
-/***************************************************************************
-* Example sketch for the ADS1115_WE library
-*
-* This sketch shows how you can use the alert pin as conversion ready alert pin.
-* Please note that you need to enable the alert pin with setAlertPinMode. Choose any
-* parameter except ADS1115_DISABLE_ALERT.
-*
-* 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
-int interruptPin = 2;
-volatile bool convReady = false;
-
-ADS1115_WE adc(I2C_ADDRESS);
-// ADS1115_WE adc = ADS1115_WE(); // Alternative: uses default address 0x48
-
-void setup() {
- Wire.begin();
- Serial.begin(9600);
- pinMode(interruptPin, INPUT_PULLUP);
- 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 channels
-
- /* Set number of conversions out of limit after which the alert pin will assert
- * - or you can disable the alert (including conversion ready 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); //needed in this sketch to enable alert pin (doesn't matter if you choose after 1,2 or 4)
-
- /* 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); //comment line/change parameter to change SPS
-
- /* Set continuous or single shot mode:
- *
- * ADS1115_CONTINUOUS -> continuous mode
- * ADS1115_SINGLE -> single shot mode (default)
- */
- //adc.setMeasureMode(ADS1115_CONTINUOUS); // continuous mode does not work with conversion ready
-
- /* Choose maximum limit or maximum and minimum alert limit (window) in volts - 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 assert, when a conversion is ready.
- * In order to deactivate, use the setAlertLimit_V function
- */
- adc.setAlertPinToConversionReady(); //needed for this sketch
-
- Serial.println("ADS1115 Example Sketch - Single Shot, Conversion Ready Alert controlled");
- Serial.println();
- attachInterrupt(digitalPinToInterrupt(interruptPin), convReadyAlert, FALLING);
- adc.startSingleMeasurement();
-}
-
-void loop() {
- float voltage = 0.0;
- static int counter = 0;
- if(convReady){
- counter++;
- convReady = false;
- if(counter==32){ // counter is 32, conversion rate is 8 SPS --> 4s
- voltage = adc.getResult_V(); // alternative: getResult_mV for Millivolt
- Serial.print("Channel 0 vs GND [V]: ");
- Serial.println(voltage);
- Serial.println("-------------------------------");
- counter = 0;
- }
- adc.startSingleMeasurement();
- }
-}
-
-void convReadyAlert(){
- convReady = true;
-}