After enabling I2C via sudo raspi-config, what is the expected output of i2cdetect -y 1 if a device is connected at address 0x40?

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Raspberry Pi - I2C Communication

After enabling I2C via sudo raspi-config, what is the expected output of i2cdetect -y 1 if a device is connected at address 0x40?

AAn error message: 'command not found'

BA grid showing 'UU' at 0x40

CA grid showing '40' at 0x40

DEmpty grid with no addresses

Step-by-Step Solution

Solution:

Step 1: Understand i2cdetect output format
The command shows a grid of addresses; connected devices show their hex address.
Step 2: Interpret device presence at 0x40
If a device is at 0x40, the grid will display '40' at that position.
Final Answer:
A grid showing '40' at 0x40 -> Option C
Quick Check:
Device address shown as hex number in grid = A grid showing '40' at 0x40 [OK]

Quick Trick: Device addresses appear as hex numbers in i2cdetect grid [OK]

Common Mistakes:

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