I2c connection on lora32 module v2

#1

Hello.

I used heltec V2 module.

and I tested it with the i2c_scanner_heltecesp.ino example.

and, mpu-6000 sensor is connected.

here is source, my arduino settings. and I used GPIO 21,22

/* Heltec Automation I2C scanner example (also it’s a basic example how to use I2C1)
*

  • ESP32 have two I2C (I2C0 and I2C1) bus
  • OLED is connected to I2C0, so if scan with Wire (I2C0), the return address should be 0x3C.
  • If you need scan other device address in I2C1…
  •    - Comment all Wire.***() codes;

  •    - Uncomment all Wire1.***() codes;
  • I2C scan example and I2C0
  • HelTec AutoMation, Chengdu, China
  • 成都惠利特自动化科技有限公司
  • www.heltec.org
  • this project also realess in GitHub:
  • https://github.com/HelTecAutomation/Heltec_ESP32
  • */

#include “Arduino.h”
#include “heltec.h”

void setup()
{
Heltec.begin(true, false, true);
//Wire.begin(SDA_OLED, SCL_OLED); //Scan OLED’s I2C address via I2C0
Wire1.begin(SDA, SCL); //If there have other device on I2C1, scan the device address via I2C1
}

void loop()
{
byte error, address;
int nDevices;

Serial.println(“Scanning…”);

nDevices = 0;
for(address = 1; address < 127; address++ )
{
// Wire.beginTransmission(address);
// error = Wire.endTransmission();

  Wire1.beginTransmission(address);
  error = Wire1.endTransmission();
Serial.print("error : ");
Serial.println(error);
  if (error == 0)
  {
  	Serial.print("I2C device found at address 0x");
  	if (address<16)
  	Serial.print("0");
  	Serial.print(address,HEX);
  	Serial.println("  !");

  	nDevices++;
  }
  else if (error==4)
  {
  	Serial.print("Unknown error at address 0x");
  	if (address<16)
  		Serial.print("0");
  	Serial.println(address,HEX);
  }

}
if (nDevices == 0)
Serial.println(“No I2C devices found\n”);
else
Serial.println(“done\n”);

delay(5000);
}

image
image.jpg1335×637 233 KB

and Serial out is

11:19:15.892 -> Scanning...
11:19:15.892 -> [E][esp32-hal-i2c.c:318] i2cDumpI2c(): i2c=0x3ffbec1c
11:19:15.892 -> [I][esp32-hal-i2c.c:319] i2cDumpI2c(): dev=0x60027000 date=0x16042000
11:19:15.892 -> [I][esp32-hal-i2c.c:321] i2cDumpI2c(): lock=0x3ffb8e18
11:19:15.938 -> [I][esp32-hal-i2c.c:323] i2cDumpI2c(): num=1
11:19:15.938 -> [I][esp32-hal-i2c.c:324] i2cDumpI2c(): mode=1
11:19:15.938 -> [I][esp32-hal-i2c.c:325] i2cDumpI2c(): stage=3
11:19:15.938 -> [I][esp32-hal-i2c.c:326] i2cDumpI2c(): error=5
11:19:15.938 -> [I][esp32-hal-i2c.c:327] i2cDumpI2c(): event=0x3ffb8d88 bits=112
11:19:15.938 -> [I][esp32-hal-i2c.c:328] i2cDumpI2c(): intr_handle=0x3ffb8e78
11:19:15.938 -> [I][esp32-hal-i2c.c:329] i2cDumpI2c(): dq=0x3ffb8cbc
11:19:15.938 -> [I][esp32-hal-i2c.c:330] i2cDumpI2c(): queueCount=1
11:19:15.938 -> [I][esp32-hal-i2c.c:331] i2cDumpI2c(): queuePos=0
11:19:15.938 -> [I][esp32-hal-i2c.c:332] i2cDumpI2c(): errorByteCnt=-1
11:19:15.983 -> [I][esp32-hal-i2c.c:333] i2cDumpI2c(): errorQueue=0
11:19:15.983 -> [I][esp32-hal-i2c.c:334] i2cDumpI2c(): debugFlags=0x00000000
11:19:15.983 -> [I][esp32-hal-i2c.c:311] i2cDumpDqData(): Debug Buffer not Enabled
11:19:15.983 -> [I][esp32-hal-i2c.c:354] i2cDumpInts(): Debug Buffer not Enabled
11:19:15.983 -> [E][esp32-hal-i2c.c:318] i2cDumpI2c(): i2c=0x3ffbec1c
11:19:15.983 -> [I][esp32-hal-i2c.c:319] i2cDumpI2c(): dev=0x60027000 date=0x16042000
11:19:15.983 -> [I][esp32-hal-i2c.c:321] i2cDumpI2c(): lock=0x3ffb8e18
11:19:15.983 -> [I][esp32-hal-i2c.c:323] i2cDumpI2c(): num=1
11:19:16.028 -> [I][esp32-hal-i2c.c:324] i2cDumpI2c(): mode=1
11:19:16.028 -> [I][esp32-hal-i2c.c:325] i2cDumpI2c(): stage=3
11:19:16.028 -> [I][esp32-hal-i2c.c:326] i2cDumpI2c(): error=5
11:19:16.028 -> [I][esp32-hal-i2c.c:327] i2cDumpI2c(): event=0x3ffb8d88 bits=112
11:19:16.028 -> [I][esp32-hal-i2c.c:328] i2cDumpI2c(): intr_handle=0x3ffb8e78
11:19:16.028 -> [I][esp32-hal-i2c.c:329] i2cDumpI2c(): dq=0x3ffb8cbc
11:19:16.028 -> [I][esp32-hal-i2c.c:330] i2cDumpI2c(): queueCount=1
11:19:16.028 -> [I][esp32-hal-i2c.c:331] i2cDumpI2c(): queuePos=0
11:19:16.028 -> [I][esp32-hal-i2c.c:332] i2cDumpI2c(): errorByteCnt=-1
11:19:16.028 -> [I][esp32-hal-i2c.c:333] i2cDumpI2c(): errorQueue=0
11:19:16.074 -> [I][esp32-hal-i2c.c:334] i2cDumpI2c(): debugFlags=0x00000000
11:19:16.074 -> [I][esp32-hal-i2c.c:311] i2cDumpDqData(): Debug Buffer not Enabled
11:19:16.074 -> [I][esp32-hal-i2c.c:354] i2cDumpInts(): Debug Buffer not Enabled
11:19:16.074 -> [E][esp32-hal-i2c.c:318] i2cDumpI2c(): i2c=0x3ffbec1c
11:19:16.074 -> [I][esp32-hal-i2c.c:319] i2cDumpI2c(): dev=0x60027000 date=0x16042000
11:19:16.074 -> [I][esp32-hal-i2c.c:321] i2cDumpI2c(): lock=0x3ffb8e18
11:19:16.074 -> [I][esp32-hal-i2c.c:323] i2cDumpI2c(): num=1
11:19:16.074 -> [I][esp32-hal-i2c.c:324] i2cDumpI2c(): mode=1
11:19:16.074 -> [I][esp32-hal-i2c.c:325] i2cDumpI2c(): stage=3
11:19:16.121 -> [I][esp32-hal-i2c.c:326] i2cDumpI2c(): error=5
11:19:16.121 -> [I][esp32-hal-i2c.c:327] i2cDumpI2c(): event=0x3ffb8d88 bits=112
11:19:16.121 -> [I][esp32-hal-i2c.c:328] i2cDumpI2c(): intr_handle=0x3ffb8e78
11:19:16.121 -> [I][esp32-hal-i2c.c:329] i2cDumpI2c(): dq=0x3ffb8cbc
11:19:16.121 -> [I][esp32-hal-i2c.c:330] i2cDumpI2c(): queueCount=1
11:19:16.121 -> [I][esp32-hal-i2c.c:331] i2cDumpI2c(): queuePos=0
11:19:16.121 -> [I][esp32-hal-i2c.c:332] i2cDumpI2c(): errorByteCnt=-1
11:19:16.121 -> [I][esp32-hal-i2c.c:333] i2cDumpI2c(): errorQueue=0
11:19:16.121 -> [I][esp32-hal-i2c.c:334] i2cDumpI2c(): debugFlags=0x00000000
11:19:16.121 -> [I][esp32-hal-i2c.c:311] i2cDumpDqData(): Debug Buffer not Enabled
11:19:16.166 -> [I][esp32-hal-i2c.c:354] i2cDumpInts(): Debug Buffer not Enabled
11:19:16.166 -> [E][esp32-hal-i2c.c:318] i2cDumpI2c(): i2c=0x3ffbec1c
11:19:16.166 -> [I][esp32-hal-i2c.c:319] i2cDumpI2c(): dev=0x60027000 date=0x16042000
11:19:16.166 -> [I][esp32-hal-i2c.c:321] i2cDumpI2c(): lock=0x3ffb8e18
11:19:16.166 -> [I][esp32-hal-i2c.c:323] i2cDumpI2c(): num=1
11:19:16.166 -> [I][esp32-hal-i2c.c:324] i2cDumpI2c(): mode=1
11:19:16.166 -> [I][esp32-hal-i2c.c:325] i2cDumpI2c(): stage=3
11:19:16.166 -> [I][esp32-hal-i2c.c:326] i2cDumpI2c(): error=5
11:19:16.166 -> [I][esp32-hal-i2c.c:327] i2cDumpI2c(): event=0x3ffb8d88 bits=112
11:19:16.212 -> [I][esp32-hal-i2c.c:328] i2cDumpI2c(): intr_handle=0x3ffb8e78
11:19:16.212 -> [I][esp32-hal-i2c.c:329] i2cDumpI2c(): dq=0x3ffb8cbc
11:19:16.212 -> [I][esp32-hal-i2c.c:330] i2cDumpI2c(): queueCount=1
11:19:16.212 -> [I][esp32-hal-i2c.c:331] i2cDumpI2c(): queuePos=0
11:19:16.212 -> [I][esp32-hal-i2c.c:332] i2cDumpI2c(): errorByteCnt=-1
11:19:16.212 -> [I][esp32-hal-i2c.c:333] i2cDumpI2c(): errorQueue=0
11:19:16.212 -> [I][esp32-hal-i2c.c:334] i2cDumpI2c(): debugFlags=0x00000000
11:19:16.212 -> [I][esp32-hal-i2c.c:311] i2cDumpDqData(): Debug Buffer not Enabled
11:19:16.212 -> [I][esp32-hal-i2c.c:354] i2cDumpInts(): Debug Buffer not Enabled
11:19:16.258 -> [E][esp32-hal-i2c.c:318] i2cDumpI2c(): i2c=0x3ffbec1c
11:19:16.258 -> [I][esp32-hal-i2c.c:319] i2cDumpI2c(): dev=0x60027000 date=0x16042000
11:19:16.258 -> [I][esp32-hal-i2c.c:321] i2cDumpI2c(): lock=0x3ffb8e18
11:19:16.258 -> [I][esp32-hal-i2c.c:323] i2cDumpI2c(): num=1
11:19:16.258 -> [I][esp32-hal-i2c.c:324] i2cDumpI2c(): mode=1
11:19:16.258 -> [I][esp32-hal-i2c.c:325] i2cDumpI2c(): stage=3
11:19:16.258 -> [I][esp32-hal-i2c.c:326] i2cDumpI2c(): error=5
11:19:16.258 -> [I][esp32-hal-i2c.c:327] i2cDumpI2c(): event=0x3ffb8d88 bits=112
11:19:16.258 -> [I][esp32-hal-i2c.c:328] i2cDumpI2c(): intr_handle=0x3ffb8e78
11:19:16.301 -> [I][esp32-hal-i2c.c:329] i2cDumpI2c(): dq=0x3ffb8cbc
11:19:16.301 -> [I][esp32-hal-i2c.c:330] i2cDumpI2c(): queueCount=1
11:19:16.301 -> [I][esp32-hal-i2c.c:331] i2cDumpI2c(): queuePos=0
11:19:16.301 -> [I][esp32-hal-i2c.c:332] i2cDumpI2c(): errorByteCnt=-1
11:19:16.301 -> [I][esp32-hal-i2c.c:333] i2cDumpI2c(): errorQueue=0
11:19:16.301 -> [I][esp32-hal-i2c.c:334] i2cDumpI2c(): debugFlags=0x00000000
11:19:16.301 -> [I][esp32-hal-i2c.c:311] i2cDumpDqData(): Debug Buffer not Enabled
11:19:16.301 -> [I][esp32-hal-i2c.c:354] i2cDumpInts(): Debug Buffer not Enabled
11:19:16.301 -> [E][esp32-hal-i2c.c:318] i2cDumpI2c(): i2c=0x3ffbec1c
11:19:16.347 -> [I][esp32-hal-i2c.c:319] i2cDumpI2c(): dev=0x60027000 date=0x16042000
11:19:16.347 -> [I][esp32-hal-i2c.c:321] i2cDumpI2c(): lock=0x3ffb8e18
11:19:16.347 -> [I][esp32-hal-i2c.c:323] i2cDumpI2c(): num=1
11:19:16.347 -> [I][esp32-hal-i2c.c:324] i2cDumpI2c(): mode=1
11:19:16.347 -> [I][esp32-hal-i2c.c:325] i2cDumpI2c(): stage=3
11:19:16.347 -> [I][esp32-hal-i2c.c:326] i2cDumpI2c(): error=5
11:19:16.347 -> [I][esp32-hal-i2c.c:327] i2cDumpI2c(): event=0x3ffb8d88 bits=112
11:19:16.347 -> [I][esp32-hal-i2c.c:328] i2cDumpI2c(): intr_handle=0x3ffb8e78
11:19:16.347 -> [I][esp32-hal-i2c.c:329] i2cDumpI2c(): dq=0x3ffb8cbc
11:19:16.347 -> [I][esp32-hal-i2c.c:330] i2cDumpI2c(): queueCount=1
11:19:16.393 -> [I][esp32-hal-i2c.c:331] i2cDumpI2c(): queuePos=0
11:19:16.393 -> [I][esp32-hal-i2c.c:332] i2cDumpI2c(): errorByteCnt=-1
11:19:16.393 -> [I][esp32-hal-i2c.c:333] i2cDumpI2c(): errorQueue=0
11:19:16.393 -> [I][esp32-hal-i2c.c:334] i2cDumpI2c(): debugFlags=0x00000000
11:19:16.393 -> [I][esp32-hal-i2c.c:311] i2cDumpDqData(): Debug Buffer not Enabled
11:19:16.393 -> [I][esp32-hal-i2c.c:354] i2cDumpInts(): Debug Buffer not Enabled
11:19:16.393 -> [E][esp32-hal-i2c.c:318] i2cDumpI2c(): i2c=0x3ffbec1c
11:19:16.393 -> [I][esp32-hal-i2c.c:319] i2cDumpI2c(): dev=0x60027000 date=0x16042000
11:19:16.393 -> [I][esp32-hal-i2c.c:321] i2cDumpI2c(): lock=0x3ffb8e18
11:19:16.438 -> [I][esp32-hal-i2c.c:323] i2cDumpI2c(): num=1
11:19:16.438 -> [I][esp32-hal-i2c.c:324] i2cDumpI2c(): mode=1
11:19:16.438 -> [I][esp32-hal-i2c.c:325] i2cDumpI2c(): stage=3
11:19:16.438 -> [I][esp32-hal-i2c.c:326] i2cDumpI2c(): error=5
11:19:16.438 -> [I][esp32-hal-i2c.c:327] i2cDumpI2c(): event=0x3ffb8d88 bits=112
11:19:16.438 -> [I][esp32-hal-i2c.c:328] i2cDumpI2c(): intr_handle=0x3ffb8e78
11:19:16.438 -> [I][esp32-hal-i2c.c:329] i2cDumpI2c(): dq=0x3ffb8cbc
11:19:16.438 -> [I][esp32-hal-i2c.c:330] i2cDumpI2c(): queueCount=1
11:19:16.438 -> [I][esp32-hal-i2c.c:331] i2cDumpI2c(): queuePos=0
11:19:16.484 -> [I][esp32-hal-i2c.c:332] i2cDumpI2c(): errorByteCnt=-1
11:19:16.484 -> [I][esp32-hal-i2c.c:333] i2cDumpI2c(): errorQueue=0
11:19:16.484 -> [I][esp32-hal-i2c.c:334] i2cDumpI2c(): debugFlags=0x00000000
11:19:16.484 -> [I][esp32-hal-i2c.c:311] i2cDumpDqData(): Debug Buffer not Enabled
11:19:16.484 -> [I][esp32-hal-i2c.c:354] i2cDumpInts(): Debug Buffer not Enabled
11:19:16.484 -> [E][esp32-hal-i2c.c:318] i2cDumpI2c(): i2c=0x3ffbec1c
11:19:16.484 -> [I][esp32-hal-i2c.c:319] i2cDumpI2c(): dev=0x60027000 date=0x16042000
11:19:16.484 -> [I][esp32-hal-i2c.c:321] i2cDumpI2c(): lock=0x3ffb8e18
11:19:16.484 -> [I][esp32-hal-i2c.c:323] i2cDumpI2c(): num=1
11:19:16.528 -> [I][esp32-hal-i2c.c:324] i2cDumpI2c(): mode=1
11:19:16.528 -> [I][esp32-hal-i2c.c:325] i2cDumpI2c(): stage=3
11:19:16.528 -> [I][esp32-hal-i2c.c:326] i2cDumpI2c(): error=5
11:19:16.528 -> [I][esp32-hal-i2c.c:327] i2cDumpI2c(): event=0x3ffb8d88 bits=112
11:19:16.528 -> [I][esp32-hal-i2c.c:328] i2cDumpI2c(): intr_handle=0x3ffb8e78
11:19:16.528 -> [I][esp32-hal-i2c.c:329] i2cDumpI2c(): dq=0x3ffb8cbc
11:19:16.528 -> [I][esp32-hal-i2c.c:330] i2cDumpI2c(): queueCount=1
11:19:16.528 -> [I][esp32-hal-i2c.c:331] i2cDumpI2c(): queuePos=0
11:19:16.528 -> [I][esp32-hal-i2c.c:332] i2cDumpI2c(): errorByteCnt=-1
11:19:16.528 -> [I][esp32-hal-i2c.c:333] i2cDumpI2c(): errorQueue=0
11:19:16.574 -> [I][esp32-hal-i2c.c:334] i2cDumpI2c(): debugFlags=0x00000000
11:19:16.574 -> [I][esp32-hal-i2c.c:311] i2cDumpDqData(): Debug Buffer not Enabled
11:19:16.574 -> [I][esp32-hal-i2c.c:354] i2cDumpInts(): Debug Buffer not Enabled
11:19:16.574 -> [E][esp32-hal-i2c.c:318] i2cDumpI2c(): i2c=0x3ffbec1c
11:19:16.574 -> [I][esp32-hal-i2c.c:319] i2cDumpI2c(): dev=0x60027000 date=0x16042000
11:19:16.574 -> [I][esp32-hal-i2c.c:321] i2cDumpI2c(): lock=0x3ffb8e18
11:19:16.574 -> [I][esp32-hal-i2c.c:323] i2cDumpI2c(): num=1
11:19:16.574 -> [I][esp32-hal-i2c.c:324] i2cDumpI2c(): mode=1
11:19:16.574 -> [I][esp32-hal-i2c.c:325] i2cDumpI2c(): stage=3
11:19:16.619 -> [I][esp32-hal-i2c.c:326] i2cDumpI2c(): error=5
11:19:16.619 -> [I][esp32-hal-i2c.c:327] i2cDumpI2c(): event=0x3ffb8d88 bits=112
11:19:16.619 -> [I][esp32-hal-i2c.c:328] i2cDumpI2c(): intr_handle=0x3ffb8e78
11:19:16.619 -> [I][esp32-hal-i2c.c:329] i2cDumpI2c(): dq=0x3ffb8cbc
11:19:16.619 -> [I][esp32-hal-i2c.c:330] i2cDumpI2c(): queueCount=1
11:19:16.619 -> [I][esp32-hal-i2c.c:331] i2cDumpI2c(): queuePos=0
11:19:16.619 -> [I][esp32-hal-i2c.c:332] i2cDumpI2c(): errorByteCnt=-1
11:19:16.619 -> [I][esp32-hal-i2c.c:333] i2cDumpI2c(): errorQueue=0
11:19:16.619 -> [I][esp32-hal-i2c.c:334] i2cDumpI2c(): debugFlags=0x00000000
11:19:16.664 -> [I][esp32-hal-i2c.c:311] i2cDumpDqData(): Debug Buffer not Enabled
11:19:16.664 -> [I][esp32-hal-i2c.c:354] i2cDumpInts(): Debug Buffer not Enabled
11:19:16.664 -> [E][esp32-hal-i2c.c:318] i2cDumpI2c(): i2c=0x3ffbec1c
11:19:16.664 -> [I][esp32-hal-i2c.c:319] i2cDumpI2c(): dev=0x60027000 date=0x16042000
11:19:16.664 -> [I][esp32-hal-i2c.c:321] i2cDumpI2c(): lock=0x3ffb8e18
11:19:16.664 -> [I][esp32-hal-i2c.c:323] i2cDumpI2c(): num=1
11:19:16.664 -> [I][esp32-hal-i2c.c:324] i2cDumpI2c(): mode=1
11:19:16.664 -> [I][esp32-hal-i2c.c:325] i2cDumpI2c(): stage=3
11:19:16.664 -> [I][esp32-hal-i2c.c:326] i2cDumpI2c(): error=5
11:19:16.709 -> [I][esp32-hal-i2c.c:327] i2cDumpI2c(): event=0x3ffb8d88 bits=112
11:19:16.709 -> [I][esp32-hal-i2c.c:328] i2cDumpI2c(): intr_handle=0x3ffb8e78
11:19:16.709 -> [I][esp32-hal-i2c.c:329] i2cDumpI2c(): dq=0x3ffb8cbc
11:19:16.709 -> [I][esp32-hal-i2c.c:330] i2cDumpI2c(): queueCount=1
11:19:16.709 -> [I][esp32-hal-i2c.c:331] i2cDumpI2c(): queuePos=0
11:19:16.709 -> [I][esp32-hal-i2c.c:332] i2cDumpI2c(): errorByteCnt=-1
11:19:16.709 -> [I][esp32-hal-i2c.c:333] i2cDumpI2c(): errorQueue=0
11:19:16.709 -> [I][esp32-hal-i2c.c:334] i2cDumpI2c(): debugFlags=0x00000000
11:19:16.709 -> [I][esp32-hal-i2c.c:311] i2cDumpDqData(): Debug Buffer not Enabled
 --- repeated mentioned sentences ---
11:19:21.098 -> error : 0
11:19:21.098 -> I2C device found at address 0x40  !
11:19:21.098 -> error : 0
11:19:21.098 -> I2C device found at address 0x41  !
11:19:21.098 -> error : 0
11:19:21.098 -> I2C device found at address 0x42  !
11:19:21.098 -> error : 0
11:19:21.098 -> I2C device found at address 0x43  !
11:19:21.098 -> error : 0
11:19:21.098 -> I2C device found at address 0x44  !
11:19:21.098 -> error : 0
11:19:21.098 -> I2C device found at address 0x45  !
11:19:21.098 -> error : 0
  --- repeated mentioned sentences ---
11:19:21.371 -> done
11:19:21.371 ->

is this a hardware fault?

I have anoter lora32 module under picture. in same environments, only different development board.(wifi lora32 v2->wifi lora32) it’s works normally.

image
image.jpg893×445 124 KB 

11:30:38.479 -> Scanning...
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.479 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.524 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 0
11:30:38.569 -> I2C device found at address 0x68  !
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> error : 2
11:30:38.569 -> done
11:30:38.569 ->

Can I check something else?