41 lines
711 B
C++
41 lines
711 B
C++
/*
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*
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* Search for an EEPROM.
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* This sketch iterate the eight possible I2C addresses and
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* checks if an EEPROM is found.
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*
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* Written by Christian Paul, 2014-11-24
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*
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*
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*/
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// include libraries
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#include <Wire.h>
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// setup
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void setup() {
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Serial.begin(115200);
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Serial.println("AT24CX search");
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Serial.println("-------------------------");
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Wire.begin();
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int i2c = 0x50;
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for (int i=0; i<8; i++) {
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Serial.print("Search at [");
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Serial.print(i2c, HEX);
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Serial.print("]: ");
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Wire.beginTransmission(i2c);
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int result = Wire.endTransmission();
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if (result==0)
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Serial.println("FOUND!");
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else
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Serial.println("not found");
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i2c++;
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}
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}
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// main loop
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void loop() {}
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