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What is the main purpose of the i2cdetect command on a Raspberry Pi?

easy🧠 Conceptual Q11 of 15
Raspberry Pi - I2C Communication
What is the main purpose of the i2cdetect command on a Raspberry Pi?
ATo update the Raspberry Pi operating system
BTo scan the I2C bus and list connected devices
CTo check the Wi-Fi signal strength
DTo format the SD card
Step-by-Step Solution
Solution:
  1. Step 1: Understand the function of i2cdetect

    The i2cdetect command scans the I2C bus to find devices connected to it.
  2. Step 2: Compare with other options

    Options A, C, and D relate to system update, Wi-Fi, and storage, which are unrelated to I2C scanning.
  3. Final Answer:

    To scan the I2C bus and list connected devices -> Option B
  4. Quick Check:

    i2cdetect scans I2C devices = B [OK]
Quick Trick: Remember: i2cdetect scans I2C devices only [OK]
Common Mistakes:
MISTAKES
  • Confusing i2cdetect with system update commands
  • Thinking it checks Wi-Fi or storage
  • Assuming it formats devices

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