I have been using the following arduino code:

#include <Wire.h>    
 
#define disk1 0x50    //Address of 24LC256 eeprom chip
 
void setup(void)
{
  Serial.begin(9600);
  Wire.begin();  
 
  unsigned int address = 10;
 
  writeEEPROM(disk1, address, 72);
  Serial.println(readEEPROM(disk1, address), DEC);

  
}
 
void loop(){}
 
void writeEEPROM(int deviceaddress, unsigned int eeaddress, byte data ) 
{
  Wire.beginTransmission(deviceaddress);
  Wire.write((int)(eeaddress >> 8));   // MSB
  Wire.write((int)(eeaddress & 0xFF)); // LSB
  Wire.write(data);
  Serial.println(Wire.endTransmission());
 
  delay(5);
}
 
byte readEEPROM(int deviceaddress, unsigned int eeaddress ) 
{
  byte rdata = 0xFF;
  
  Wire.beginTransmission(deviceaddress);
  Wire.write((int)(eeaddress >> 8));   // MSB
  Wire.write((int)(eeaddress & 0xFF)); // LSB
  Serial.println(Wire.endTransmission());
 
  Wire.requestFrom(deviceaddress,1);
 
  if (Wire.available()) rdata = Wire.read();
 
  return rdata;
}

the code was from this tutorial which explains how the wiring on pins 1-3 governs the address of the chip.

I have been using the following Arduino code:

#include <Wire.h>    
 
#define disk1 0x50    //Address of 24LC256 eeprom chip
 
void setup(void)
{
  Serial.begin(9600);
  Wire.begin();  
 
  unsigned int address = 10;
 
  writeEEPROM(disk1, address, 72);
  Serial.println(readEEPROM(disk1, address), DEC);
}
 
void loop(){}
 
void writeEEPROM(int deviceaddress, unsigned int eeaddress, byte data ) 
{
  Wire.beginTransmission(deviceaddress);
  Wire.write((int)(eeaddress >> 8));   // MSB
  Wire.write((int)(eeaddress & 0xFF)); // LSB
  Wire.write(data);
  Serial.println(Wire.endTransmission());
 
  delay(5);
}
 
byte readEEPROM(int deviceaddress, unsigned int eeaddress ) 
{
  byte rdata = 0xFF;
  
  Wire.beginTransmission(deviceaddress);
  Wire.write((int)(eeaddress >> 8));   // MSB
  Wire.write((int)(eeaddress & 0xFF)); // LSB
  Serial.println(Wire.endTransmission());
 
  Wire.requestFrom(deviceaddress,1);
 
  if (Wire.available()) rdata = Wire.read();
 
  return rdata;
}

The code was from this tutorial which explains how the wiring on pins 1-3 governs the address of the chip.

I have been trying to program an AT24C16 EEPROM and have set up a circuit as per the attached image.

I have been using the following arduino code:

    #include <Wire.h>    
 
#define disk1 0x50    //Address of eeprom chip
 
void setup(void)
{
  Serial.begin(9600);
  Wire.begin();  
 
  unsigned int address = 1;
 
  writeEEPROM(disk1, address, 72);
  Serial.print(readEEPROM(disk1, address), DEC);
}
 
void loop(){}
 
void writeEEPROM(int deviceaddress, unsigned int eeaddress, byte data ) 
{
  Wire.beginTransmission(deviceaddress);
  Wire.write((int)(eeaddress >> 8));   // MSB
  Wire.write((int)(eeaddress & 0xFF)); // LSB
  Wire.write(data);
  Wire.endTransmission();
  Serial.println(Wire.endTransmission());
 
  delay(5);
}
 
byte readEEPROM(int deviceaddress, unsigned int eeaddress ) 
{
  byte rdata = 0xFF;
  
  Wire.beginTransmission(deviceaddress);
  Wire.write((int)(eeaddress >> 8));   // MSB
  Wire.write((int)(eeaddress & 0xFF)); // LSB
  Wire.endTransmission();

  Serial.println(Wire.endTransmission());

  Wire.requestFrom(deviceaddress,1);
 
  if (Wire.available()) rdata = Wire.read();
 
  return rdata;
}

Unfortunately I only ever receive '255' in the serial monitor suggesting that no data has been written.

the code was from this tutorial which explains how the wiring on pins 1-3 governs the address of the chip.

I have been trying to program an AT24C16 EEPROM and have set up a circuit as per the attached image.

I have been using the following arduino code:

#include <Wire.h>    
 
#define disk1 0x50    //Address of 24LC256 eeprom chip
 
void setup(void)
{
  Serial.begin(9600);
  Wire.begin();  
 
  unsigned int address = 10;
 
  writeEEPROM(disk1, address, 72);
  Serial.println(readEEPROM(disk1, address), DEC);

  
}
 
void loop(){}
 
void writeEEPROM(int deviceaddress, unsigned int eeaddress, byte data ) 
{
  Wire.beginTransmission(deviceaddress);
  Wire.write((int)(eeaddress >> 8));   // MSB
  Wire.write((int)(eeaddress & 0xFF)); // LSB
  Wire.write(data);
  Serial.println(Wire.endTransmission());
 
  delay(5);
}
 
byte readEEPROM(int deviceaddress, unsigned int eeaddress ) 
{
  byte rdata = 0xFF;
  
  Wire.beginTransmission(deviceaddress);
  Wire.write((int)(eeaddress >> 8));   // MSB
  Wire.write((int)(eeaddress & 0xFF)); // LSB
  Serial.println(Wire.endTransmission());
 
  Wire.requestFrom(deviceaddress,1);
 
  if (Wire.available()) rdata = Wire.read();
 
  return rdata;
}

Unfortunately I only ever receive '255' in the serial monitor suggesting that no data has been written.

the code was from this tutorial which explains how the wiring on pins 1-3 governs the address of the chip.

I have been trying to program an AT24C16 EEPROM and have set up a circuit as per the attached image.

I have been using the following arduino code:

    #include <Wire.h>    
 
#define disk1 0x50    //Address of eeprom chip
 
void setup(void)
{
  Serial.begin(9600);
  Wire.begin();  
 
  unsigned int address = 1;
 
  writeEEPROM(disk1, address, 72);
  Serial.print(readEEPROM(disk1, address), DEC);
}
 
void loop(){}
 
void writeEEPROM(int deviceaddress, unsigned int eeaddress, byte data ) 
{
  Wire.beginTransmission(deviceaddress);
  Wire.write((int)(eeaddress >> 8));   // MSB
  Wire.write((int)(eeaddress & 0xFF)); // LSB
  Wire.write(data);
  Wire.endTransmission();
 
  delay(5);
}
 
byte readEEPROM(int deviceaddress, unsigned int eeaddress ) 
{
  byte rdata = 0xFF;
  
  Wire.beginTransmission(deviceaddress);
  Wire.write((int)(eeaddress >> 8));   // MSB
  Wire.write((int)(eeaddress & 0xFF)); // LSB
  Wire.endTransmission();
 
  Wire.requestFrom(deviceaddress,1);
 
  if (Wire.available()) rdata = Wire.read();
 
  return rdata;
}

Unfortunately I only ever receive '255' in the serial monitor suggesting that no data has been written.

the code was from this tutorial which explains how the wiring on pins 1-3 governs the address of the chip.

I have been trying to program an AT24C16 EEPROM and have set up a circuit as per the attached image.

I have been using the following arduino code:

    #include <Wire.h>    
 
#define disk1 0x50    //Address of eeprom chip
 
void setup(void)
{
  Serial.begin(9600);
  Wire.begin();  
 
  unsigned int address = 1;
 
  writeEEPROM(disk1, address, 72);
  Serial.print(readEEPROM(disk1, address), DEC);
}
 
void loop(){}
 
void writeEEPROM(int deviceaddress, unsigned int eeaddress, byte data ) 
{
  Wire.beginTransmission(deviceaddress);
  Wire.write((int)(eeaddress >> 8));   // MSB
  Wire.write((int)(eeaddress & 0xFF)); // LSB
  Wire.write(data);
  Wire.endTransmission();
  Serial.println(Wire.endTransmission());
 
  delay(5);
}
 
byte readEEPROM(int deviceaddress, unsigned int eeaddress ) 
{
  byte rdata = 0xFF;
  
  Wire.beginTransmission(deviceaddress);
  Wire.write((int)(eeaddress >> 8));   // MSB
  Wire.write((int)(eeaddress & 0xFF)); // LSB
  Wire.endTransmission(); 

  Serial.println(Wire.endTransmission());

  Wire.requestFrom(deviceaddress,1);
 
  if (Wire.available()) rdata = Wire.read();
 
  return rdata;
}

Unfortunately I only ever receive '255' in the serial monitor suggesting that no data has been written.

the code was from this tutorial which explains how the wiring on pins 1-3 governs the address of the chip.