Combine Sen0321 and bme 280 but can't get the data

[jwang623]

Can you guys help to check if the code is right?
and the picture is the layout for Arduino

:

#include "DFRobot_OzoneSensor.h"
#include <Wire.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>

#define COLLECT_NUMBER 20 // collect number, the collection range is 1-100
#define Ozone_IICAddress OZONE_ADDRESS_3
#define SEALEVELPRESSURE_HPA (1013.25)
/* iic slave Address, The default is ADDRESS_3
ADDRESS_0 0x70 // iic device address
ADDRESS_1 0x71
ADDRESS_2 0x72
ADDRESS_3 0x73
/
DFRobot_OzoneSensor Ozone;
Adafruit_BME280 bme;
void setup() {
Serial.begin(9600);
while (!Ozone.begin(Ozone_IICAddress)) {
Serial.println("I2c device number error !");
delay(1000);
}
Serial.println("I2c connect success !");
/ Set iic mode, active mode or passive mode
MEASURE_MODE_AUTOMATIC // active mode
MEASURE_MODE_PASSIVE // passive mode
*/
Ozone.setModes(MEASURE_MODE_PASSIVE);

if (!Ozone.begin(Ozone_IICAddress)) {
Serial.println("I2c device number error !");
delay(1000);
}
Serial.println("I2c connect success !");
/* Set iic mode, active mode or passive mode
MEASURE_MODE_AUTOMATIC // active mode
MEASURE_MODE_PASSIVE // passive mode
/
}
void loop() {
/ Smooth data collection
COLLECT_NUMBER // The collection range is 1-100
*/
int16_t ozoneConcentration = Ozone.readOzoneData(COLLECT_NUMBER);
Serial.print("Ozone concentration is ");
Serial.print(ozoneConcentration);
Serial.println(" PPB.");

Serial.print("Temperature = ");
Serial.print(bme.readTemperature());
Serial.println("*C");

Serial.print("Pressure = ");
Serial.print(bme.readPressure() / 100.0F);
Serial.println("hPa");

Serial.print("Approx. Altitude = ");
Serial.print(bme.readAltitude(SEALEVELPRESSURE_HPA));
Serial.println("m");

Serial.print("Humidity = ");
Serial.print(bme.readHumidity());
Serial.println("%");
delay(1000);
}

[groundFungus]

The first thing that I do when I have trouble with I2C devices is to run an I2C scanner to confirm I2C addresses and communication with the bus.

// I2C scanner by Nick Gammon.  Thanks Nick.

#include <Wire.h>

void setup() {
  Serial.begin (115200); //*****  make sure serial monitor baud matches *****

  // Leonardo: wait for serial port to connect
  while (!Serial) 
    {
    }

  Serial.println ();
  Serial.println ("I2C scanner. Scanning ...");
  byte count = 0;
  
  Wire.begin();
  for (byte i = 1; i < 120; i++)
  {
    Wire.beginTransmission (i);
    if (Wire.endTransmission () == 0)
      {
      Serial.print ("Found address: ");
      Serial.print (i, DEC);
      Serial.print (" (0x");
      Serial.print (i, HEX);
      Serial.println (")");
      count++;
      delay (1);  // maybe unneeded?
      } // end of good response
  } // end of for loop
  Serial.println ("Done.");
  Serial.print ("Found ");
  Serial.print (count, DEC);
  Serial.println (" device(s).");
}  // end of setup

void loop() {}

Please post a schematic. Written descriptions are always more ambiguous than a drawing. Hand drawn, photographed and posted is fine. Include all pin names/numbers, components, their part numbers and/or values and power supplies.

Please read the forum guidelines to see how to properly post code and some information on making a good post.

Use the IDE autoformat tool (ctrl-t or Tools, Auto format) before posting code in a code block.

Please go back and fix your original post.

[jwang623]

Hi,

Thanks for your reply, I just updated my post.

and I2C is:

I2C Scanner

Scanning...

I2C device found at address 0x60 !

I2C device found at address 0x6A !

I2C device found at address 0x73 !

I2C device found at address 0x7E !

done

[jwang623]

Two sensors can run individuality with the code but when I combined together, no data is showing

[groundFungus]

The (improperly) posted code is incomplete will not compile. Please post a compete, minimal and verifiable code that demonstrates the issue.

[jwang623]

This one is for sen0321:
:

#include "DFRobot_OzoneSensor.h"
#define COLLECT_NUMBER 20 // collect number, the collection range is 1-100
#define Ozone_IICAddress OZONE_ADDRESS_3
/* iic slave Address, The default is ADDRESS_3
ADDRESS_0 0x70 // iic device address
ADDRESS_1 0x71
ADDRESS_2 0x72
ADDRESS_3 0x73
/
DFRobot_OzoneSensor Ozone;
void setup() {
Serial.begin(9600);
while (!Ozone.begin(Ozone_IICAddress)) {
Serial.println("I2c device number error !");
delay(1000);
}
Serial.println("I2c connect success !");
/ Set iic mode, active mode or passive mode
MEASURE_MODE_AUTOMATIC // active mode
MEASURE_MODE_PASSIVE // passive mode
/
Ozone.setModes(MEASURE_MODE_PASSIVE);
}
void loop() {
/ Smooth data collection
COLLECT_NUMBER // The collection range is 1-100
*/
int16_t ozoneConcentration = Ozone.readOzoneData(COLLECT_NUMBER);
Serial.print("Ozone concentration is ");
Serial.print(ozoneConcentration);
Serial.println(" PPB.");
delay(1000);
}

[jwang623]

This one is for bme280:

:

#include <Wire.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>

#define SEALEVELPRESSURE_HPA (1013.25)

Adafruit_BME280 bme;

void setup() {
Serial.begin(9600);

if (!bme.begin(0x76)) {
Serial.println("Could not find a valid BME280 sensor, check wiring!");
while (1)
;
}
}

void loop() {
Serial.print("Temperature = ");
Serial.print(bme.readTemperature());
Serial.println("*C");

Serial.print("Pressure = ");
Serial.print(bme.readPressure() / 100.0F);
Serial.println("hPa");

Serial.print("Approx. Altitude = ");
Serial.print(bme.readAltitude(SEALEVELPRESSURE_HPA));
Serial.println("m");

Serial.print("Humidity = ");
Serial.print(bme.readHumidity());
Serial.println("%");

Serial.println();
delay(1000);
}

[jwang623]

They are worked individually