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''sudo i2cdetect -y -a 1''
or
''sudo i2cdetect -y -a 0''// only for Raspberry Pi B
[[File:OLED77.jpg|thumbnail|500px|left]]<br />
"77" is mean that I2C device is detected, and the address is "77"
or
''sudo i2cdetect -y -a 0''// only for Raspberry Pi B
[[File:OLED77.jpg|thumbnail|500px|left]]<br />
"77" is mean that I2C device is detected, and the address is "77"