29 lines
611 B
Arduino
29 lines
611 B
Arduino
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#include "Wire.h"
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void setup() {
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Serial.begin(115200);
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Wire.begin();
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}
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void loop() {
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byte error, address;
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int nDevices = 0;
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delay(5000);
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Serial.println("Scanning for I2C devices ...");
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for(address = 0x01; address < 0x7f; address++){
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Wire.beginTransmission(address);
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error = Wire.endTransmission();
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if (error == 0){
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Serial.printf("I2C device found at address 0x%02X\n", address);
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nDevices++;
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} else if(error != 2){
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Serial.printf("Error %d at address 0x%02X\n", error, address);
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}
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}
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if (nDevices == 0){
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Serial.println("No I2C devices found");
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}
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}
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