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You want to scan all possible I2C addresses on bus 1, including reserved ones, using i2cdetect. Which option should you add to the command?

hard🚀 Application Q8 of 15
Raspberry Pi - I2C Communication
You want to scan all possible I2C addresses on bus 1, including reserved ones, using i2cdetect. Which option should you add to the command?
AAdd <code>-r</code> to enable a more thorough scan
BAdd <code>-s</code> to scan silently
CAdd <code>-q</code> for quick scan
DAdd <code>-a</code> to scan all addresses including reserved
Step-by-Step Solution
Solution:

  1. Step 1: Identify option to scan reserved addresses

    The -a option tells i2cdetect to scan all addresses, including reserved ones.

  2. Step 2: Confirm other options do not scan reserved addresses

    -r is for repeated start, -q is quick scan, -s is silent mode, none scan reserved addresses.

  3. Final Answer:

    Add -a to scan all addresses including reserved -> Option D

  4. Quick Check:

    -a = scan all addresses [OK]
Quick Trick: Use -a to scan reserved I2C addresses [OK]
Common Mistakes:
MISTAKES
  • Using -r instead of -a
  • Confusing quick scan with scanning reserved addresses
  • Assuming silent mode scans more addresses

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