Reading speed

[Leufu]

Hello! I'm currently experimenting with this library in conjunction with a Seeed Studio XIAO nRF52840 (Sense) board. However, I've observed a low data rate when transmitting data via the serial port. Initially, I suspected that this might be due to the MCU speed, but since it operates at 64MHz, that shouldn't be the issue.

To provide context, I'm using basic Arduino code, and I'm seeing around 20-21 samples per second on the screen. Could this low data rate be attributed to a problem with the delay time conversion within the library?

` #include "ADS1115.h"
float Voltage = 0.0;

#ifdef SOFTWAREWIRE
#include <SoftwareWire.h>
SoftwareWire myWire(3, 2);
ADS1115 ads(myWire);//IIC
#else
#include <Wire.h>
ADS1115 ads(Wire);//IIC
#endif

void setup(void)
{
Serial.begin(115200);
while(!ads.begin(0x48)){
Serial.print("ads1115 init failed!!!");
delay(1000);
}
//ads.begin(0x49)
//ads.begin(0x4A)
//ads.begin(0x4B)

ads.setOperateMode(ADS1115_MODE_SINGLE);   
ads.setOperateStaus(ADS1115_OS_SINGLE);

ads.setPGAGain(ADS1115_PGA_6_144);    // 2/3x gain +/- 6.144V  1 bit =  0.1875mV (default)
// ads.setPGAGain(ADS1115_PGA_4_096); // 1x gain   +/- 4.096V  1 bit =  0.125mV
// ads.setPGAGain(ADS1115_PGA_2_048); // 2x gain   +/- 2.048V  1 bit =  0.0625mV
// ads.setPGAGain(ADS1115_PGA_1_024); // 4x gain   +/- 1.024V  1 bit =  0.03125mV
// ads.setPGAGain(ADS1115_PGA_0_512); // 8x gain   +/- 0.512V  1 bit =  0.015625mV
// ads.setPGAGain(ADS1115_PGA_0_256); // 16x gain  +/- 0.256V  1 bit =  0.0078125mV

//ads.setSampleRate(ADS1115_DR_8); //8 SPS
// ads.setSampleRate(ADS1115_DR_16); //16 SPS
// ads.setSampleRate(ADS1115_DR_32); //32 SPS
// ads.setSampleRate(ADS1115_DR_64); //64 SPS
// ads.setSampleRate(ADS1115_DR_128); //128 SPS
//ads.setSampleRate(ADS1115_DR_250); //250 SPS
// ads.setSampleRate(ADS1115_DR_475); //475 SPS
ads.setSampleRate(ADS1115_DR_860); //860 SPS

}
void loop(void)
{
int16_t adc0,adc1,adc2,adc3;
adc0 = ads.getConversionResults(channel0); //P = AIN0, N = GND
//adc1 = ads.getConversionResults(channel1); //P = AIN1, N = GND
//adc2 = ads.getConversionResults(channel2); //P = AIN2, N = GND
//adc3 = ads.getConversionResults(channel3); //P = AIN3, N = GND
Voltage = (adc0 * 0.1875);

Serial.print("AIN0: "); Serial.print(adc0);
Serial.print("      Voltaje:");Serial.print(Voltage);Serial.println("mV");

//Serial.print("AIN1: "); Serial.println(adc1);
//Serial.print("AIN2: "); Serial.println(adc2);
//Serial.print("AIN3: "); Serial.println(adc3);
//Serial.println(" ");    
//delay(10);

} `

Serial output:

PD: I change between 250, 475 and 860 sps settings and i got the same result

[Lesords]

Hello,

I'm very sorry to have kept you waiting so long.

Does this problem still exist? If so, can you please tidy up the file description?

[Lesords]

Hello,

I'm going to close this issue, feel free to re-open it if you have any other questions.

[Autocommentary]