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Jérôme Delacotte
2025-03-06 11:15:32 +01:00
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libraries/ADS1115_WE/examples/Continuous_ADS1015/Continuous_ADS1015.ino Normal file
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/***************************************************************************
* Example sketch for the ADS1015_WE library
*
* This sketch shows how to use the ADS1015 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<ADS1015_WE.h>
#include<Wire.h>
#define I2C_ADDRESS 0x48
/* There are several ways to create your ADS1015_WE object:
* ADS1015_WE adc = ADS1015_WE(); -> uses Wire / I2C Address = 0x48
* ADS1015_WE adc = ADS1015_WE(I2C_ADDRESS); -> uses Wire / I2C_ADDRESS
* ADS1015_WE adc = ADS1015_WE(&Wire); -> you can pass any TwoWire object / I2C Address = 0x48
* ADS1015_WE adc = ADS1015_WE(&Wire, I2C_ADDRESS); -> all together
*/
ADS1015_WE adc = ADS1015_WE(I2C_ADDRESS);
void setup() {
bool useADS1015 = true;
Wire.begin();
Serial.begin(9600);
if(!adc.init(useADS1015)){ // passing true will tell the lib that an ADS1015 is used
Serial.println("ADS1015 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!
*
* ADS1015_RANGE_6144 -> +/- 6144 mV
* ADS1015_RANGE_4096 -> +/- 4096 mV
* ADS1015_RANGE_2048 -> +/- 2048 mV (default)
* ADS1015_RANGE_1024 -> +/- 1024 mV
* ADS1015_RANGE_0512 -> +/- 512 mV
* ADS1015_RANGE_0256 -> +/- 256 mV
*/
adc.setVoltageRange_mV(ADS1015_RANGE_6144); //comment line/change parameter to change range
/* Set the inputs to be compared
*
* ADS1015_COMP_0_1 -> compares 0 with 1 (default)
* ADS1015_COMP_0_3 -> compares 0 with 3
* ADS1015_COMP_1_3 -> compares 1 with 3
* ADS1015_COMP_2_3 -> compares 2 with 3
* ADS1015_COMP_0_GND -> compares 0 with GND
* ADS1015_COMP_1_GND -> compares 1 with GND
* ADS1015_COMP_2_GND -> compares 2 with GND
* ADS1015_COMP_3_GND -> compares 3 with GND
*/
adc.setCompareChannels(ADS1015_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
*
* ADS1015_ASSERT_AFTER_1 -> after 1 conversion
* ADS1015_ASSERT_AFTER_2 -> after 2 conversions
* ADS1015_ASSERT_AFTER_4 -> after 4 conversions
* ADS1015_DISABLE_ALERT -> disable comparator / alert pin (default)
*/
//adc.setAlertPinMode(ADS1015_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:
*
* ADS1015_128_SPS
* ADS1015_250_SPS
* ADS1015_490_SPS
* ADS1015_920_SPS
* ADS1015_1600_SPS (default)
* ADS1015_2400_SPS
* ADS1015_3300_SPS
*/
//adc.setConvRate(ADS1015_3300_SPS); //uncomment if you want to change the default
/* Set continuous or single shot mode:
*
* ADS1015_CONTINUOUS -> continuous mode
* ADS1015_SINGLE -> single shot mode (default)
*/
adc.setMeasureMode(ADS1015_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)
*
* ADS1015_MAX_LIMIT
* ADS1015_WINDOW
*
*/
//adc.setAlertModeAndLimit_V(ADS1015_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.
*
* ADS1015_LATCH_DISABLED (default)
* ADS1015_LATCH_ENABLED
*/
//adc.setAlertLatch(ADS1015_LATCH_ENABLED); //uncomment if you want to change the default
/* Sets the alert pin polarity if active:
*
* ADS1015_ACT_LOW -> active low (default)
* ADS1015_ACT_HIGH -> active high
*/
//adc.setAlertPol(ADS1015_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("ADS1015 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(ADS1015_COMP_0_GND);
Serial.print(voltage);
Serial.print(", 1: ");
voltage = readChannel(ADS1015_COMP_1_GND);
Serial.print(voltage);
Serial.print(", 2: ");
voltage = readChannel(ADS1015_COMP_2_GND);
Serial.print(voltage);
Serial.print(", 3: ");
voltage = readChannel(ADS1015_COMP_3_GND);
Serial.println(voltage);
delay(1000);
}
float readChannel(ADS1015_MUX channel) {
float voltage = 0.0;
adc.setCompareChannels(channel);
voltage = adc.getResult_V(); // alternative: getResult_mV for Millivolt
return voltage;
}