Error in simple i2c wire communication code

[charnjit]

I tried simple code in Arduino nano as below

#include <Wire.h>

void setup() {
  Wire.begin(); // join i2c bus (address optional for master)
}

byte x = 0;

void loop() {
  Wire.beginTransmission(8); // transmit to device #8
  Wire.write("1");        // sends five bytes
  Wire.endTransmission();    // stop transmitting
  delay(500);
    Wire.beginTransmission(8); // transmit to device #8
  Wire.write("2");        // sends five bytes
  Wire.endTransmission();    // stop transmitting
  delay(500);
}

But I am getting this

Arduino: 1.8.13 (Windows 7), TD: 1.53, Board: "Arduino Nano, ATmega328P"

Sketch uses 2714 bytes (8%) of program storage space. Maximum is 30720 bytes.

Global variables use 229 bytes (11%) of dynamic memory, leaving 1819 bytes for local variables. Maximum is 2048 bytes.

avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x00

An error occurred while uploading the sketch



This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

I don't understand it .what mean by this Error.
How to solve it??????

[Grumpy_Mike]

@charnjit

what mean by this Error

It means the IDE is getting no response from your Arduino. Normally this happens if you have a faulty lead or you have not selected the correct serial port.

[anon73444976]

@charnjit

Wire.write("1"); // sends five bytes

One of these is not true...

Have you tried selecting an alternative, like "old bootloader" ?

[GolamMostafa]

@charnjit

I don't understand it .what mean by this Error.
How to solve it??????

1. Which Arduino is your Slave device? UNO or NANO or MEGA?
2. Show connection diagram that you have made between NANO and UNO/NANO/MRGA. Check that your connection is something similar to Fig-1 below.

Figure-1:

@anon73444976

Have you tried selecting an alternative, like "old bootloader" ?

IDE ----> Tools ----> Board:  -----> Arduino AVR Boards ------> Arduino Nano
IDE ----> Tools -----> Processor : "ATmega328P" ----> ATmmega328P (Old Bootloader)

[charnjit]

Yes, by " old bootloader " it solved.
My Master is nano328. Slave i s pro micro 32u4 also connected i2c oled display.