42 lines
710 B
C++
42 lines
710 B
C++
|
|
/*
|
|
*
|
|
* Search for an EEPROM.
|
|
* This sketch iterate the eight possible I2C addresses and
|
|
* checks if an EEPROM is found.
|
|
*
|
|
* Written by Christian Paul, 2014-11-24
|
|
*
|
|
*
|
|
*/
|
|
|
|
// include libraries
|
|
#include <Wire.h>
|
|
|
|
// setup
|
|
void setup() {
|
|
Serial.begin(9600);
|
|
Serial.println("AT24CX search");
|
|
Serial.println("-------------------------");
|
|
|
|
Wire.begin();
|
|
int i2c = 0x50;
|
|
for (int i=0; i<8; i++) {
|
|
Serial.print("Search at [");
|
|
Serial.print(i2c, HEX);
|
|
Serial.print("]: ");
|
|
Wire.beginTransmission(i2c);
|
|
int result = Wire.endTransmission();
|
|
if (result==0)
|
|
Serial.println("FOUND!");
|
|
else
|
|
Serial.println("not found");
|
|
i2c++;
|
|
}
|
|
|
|
}
|
|
|
|
// main loop
|
|
void loop() {}
|
|
|