Hello,
First time posting. I'm simply trying to read a voltage divider using the single ended mode. I have a Arduino Pro Mini. The connections are:
Arduino to ADS1115:
A4 --> SDA
A5 --> SCL
ADS1115 Connections:
VDD --> 5V
GND --> GND
A0 --> Voltage divider
The code is right from the Adafruit site. I only changed a few applicable labels from ads1015 to ads1115. The code uploads and the serial monitor gives me:
Hello!
Getting single-ended readings from AIN0..3
ADC Range: +/- 6.144V (1 bit = 188uV)
AIN0: -1
AIN1: -1
AIN2: -1
AIN3: -1
AIN0: -1
AIN1: -1
AIN2: -1
AIN3: -1
AIN0: -1
AIN1: -1
AIN2: -1
AIN3: -1
It just keeps reporting -1 for all four channels! The code is:
#include <Wire.h>
#include <Adafruit_ADS1015.h>
Adafruit_ADS1115 ads1115;
void setup(void)
{
Serial.begin(9600);
Serial.println("Hello!");
Serial.println("Getting single-ended readings from AIN0..3");
Serial.println("ADC Range: +/- 6.144V (1 bit = 188uV)");
ads1115.begin();
}
void loop(void)
{
int16_t adc0, adc1, adc2, adc3;
adc0 = ads1115.readADC_SingleEnded(0);
adc1 = ads1115.readADC_SingleEnded(1);
adc2 = ads1115.readADC_SingleEnded(2);
adc3 = ads1115.readADC_SingleEnded(3);
Serial.print("AIN0: "); Serial.println(adc0);
Serial.print("AIN1: "); Serial.println(adc1);
Serial.print("AIN2: "); Serial.println(adc2);
Serial.print("AIN3: "); Serial.println(adc3);
Serial.println(" ");
delay(1000);
}
In the attached image, the ads1115 is covering my VDD, GND, and ADDR connections but they're there.
Can someone please help?!
Thanks
