ESP32 SPI communication with ADS1292R

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1

Hi All,
I am trying to use SPI of ESP32 with ADS1292r, but it is not working. I am trying to read the chip id of ADS1292r, but it always reads zero. I tried with baud rates of 9600 and 57600 in the serial.begin(), but it did not work.
Could anyone please help.

Regards,
Nitin

2

What does serial.begin() have to do with SPI?

Post a wiring diagram, an image of your setup, and the code in code tags.

3

Hi,
The following is my code for the ESP32 with ADS1292r breakout kit.

#include "protocentralAds1292r.h"
//#include "BLE2904.h"
#include "SPI.h"

// See the following for generating UUIDs:
// https://www.uuidgenerator.net/

#define SERVICE_UUID "4fafc201-1fb5-459e-8fcc-c5c9c331914b" //creating the service UUID
#define CHARACTERISTIC_UUID "beb5483e-36e1-4688-b7f5-ea07361b26a8" //creating the characteristics UUID

#define ESP32_V_SPI_CS_PIN 5
#define ADS1292R_PWRDN_PIN 2
#define ADS1292R_START_PIN 15

char Reg_read_data;

#define LED_BUILTIN 2 //pin with LED to turn on when BT connected

ads1292OutputValues* ADS1292RegValues;
ads1292r ECG_SENSOR_ADS1292R;
/-----------------Function to detect Lead off condition in ECG.----------------------/
bool leadoff_detect(bool LEADOFF_DETECT){

/* Setup for leads off detection for RLD and Lead sense*/

// ECG_SENSOR_ADS1292R.getAds1292EcgAndRespirationSamples(DATA_READY,CS,ADS1292RegValues);
// return ADS1292RegValues->leadoffDetected;
}
/------------------------------------------------------------------------------------/

/------------------------Setup or main function.---------------------------/
void setup() {

SPI.begin();

Serial.begin(9600); // define the baud rate of ESP32

/-------------------------------------------------------------------------------------------/
/-------------Setting up the Sensor------------------------/

ECG_SENSOR_ADS1292R.ads1292Reset(ADS1292R_PWRDN_PIN);
delay(1000);
ECG_SENSOR_ADS1292R.ads1292Init(ESP32_V_SPI_CS_PIN,ADS1292R_PWRDN_PIN,ADS1292R_START_PIN);
delay(1000);
Serial.println("ECG sensor initialised.");

//For Debug purpose only.
//Reading the Chip ID
ECG_SENSOR_ADS1292R.ads1292RegRead(ESP32_V_SPI_CS_PIN,ADS1292_REG_ID,Reg_read_data);
Serial.println("CHIP ID is:");
Serial.println(Reg_read_data,HEX);
}

4

code in code tags? Good luck.

5

Hi Idahowalker,
I am a newbie to Arduino, could you please let me know where is the code tags or how do I access them.

Regards,
Nitin

6

In your post #3.

Edit the post and select (highlight) just the code, exclude the top comments, then click the toolbar icon "</>". That should do it.