[Solved] You run sudo i2cdetect -y 1 and see the following partial output: 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: 03 -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ...... | Raspberry Pi

Raspberry Pi - I2C Communication

You run sudo i2cdetect -y 1 and see the following partial output:

     0 1 2 3 4 5 6 7 8 9 a b c d e f
00:          03 -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
...

What does the address 03 represent in this output?

AReserved address, no device allowed

BBus error at address 3

CAn I2C device is detected at address 0x03

DScan incomplete at address 3

Step-by-Step Solution

Solution:

Step 1: Understand address notation in output
Numbers like "03" indicate a device responded at that hexadecimal address.
Step 2: Confirm meaning of detected address
Address 0x03 means a device is present and acknowledged communication at that address.
Final Answer:
An I2C device is detected at address 0x03 -> Option C
Quick Check:
Number = device found at that address [OK]

Quick Trick: Numbers show device addresses; "--" means none [OK]

Common Mistakes:

MISTAKES

Master "I2C Communication" in Raspberry Pi

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More Raspberry Pi Quizzes

You run sudo i2cdetect -y 1 and see the following partial output: