https://www.te.com/commerce/DocumentDel ... T-MIPS0003
Input Voltage: 10V
Outputvoltage 0 - 100mV
Ardiuno + ADS1115 differentail read works great
Code: Select all
#include <Wire.h>
#include <Adafruit_ADS1015.h>
Adafruit_ADS1115 ads; /* Use this for the 16-bit version */
//Adafruit_ADS1015 ads; /* Use thi for the 12-bit version */
void setup(void)
{
Serial.begin(9600);
Serial.println("Hello!");
Serial.println("Getting differential reading from AIN0 (P) and AIN1 (N)");
Serial.println("ADC Range: +/- 6.144V (1 bit = 3mV/ADS1015, 0.1875mV/ADS1115)");
// The ADC input range (or gain) can be changed via the following
// functions, but be careful never to exceed VDD +0.3V max, or to
// exceed the upper and lower limits if you adjust the input range!
// Setting these values incorrectly may destroy your ADC!
// ADS1015 ADS1115
// ------- -------
// ads.setGain(GAIN_TWOTHIRDS); // 2/3x gain +/- 6.144V 1 bit = 3mV 0.1875mV (default)
// ads.setGain(GAIN_ONE); // 1x gain +/- 4.096V 1 bit = 2mV 0.125mV
// ads.setGain(GAIN_TWO); // 2x gain +/- 2.048V 1 bit = 1mV 0.0625mV
// ads.setGain(GAIN_FOUR); // 4x gain +/- 1.024V 1 bit = 0.5mV 0.03125mV
// ads.setGain(GAIN_EIGHT); // 8x gain +/- 0.512V 1 bit = 0.25mV 0.015625mV
// ads.setGain(GAIN_SIXTEEN); // 16x gain +/- 0.256V 1 bit = 0.125mV 0.0078125mV
ads.begin();
}
void loop(void)
{
int16_t results;
/* Be sure to update this value based on the IC and the gain settings! */
//float multiplier = 3.0F; /* ADS1015 @ +/- 6.144V gain (12-bit results) */
float multiplier = 0.1875F; /* ADS1115 @ +/- 6.144V gain (16-bit results) */
results = ads.readADC_Differential_0_1();
Serial.print("Differential Voltage: "); Serial.print(results * multiplier); Serial.println(" mV, ");
delay(1000);
}
So far so good, but the messurement with esp01 and ESPeasy fails. Any ideas why?
I also didn't get the point "Callibration" ... is there an example how to use it? But I think it won't help me, cause my differentail Readings on A0 to A1 is floating