[Solved] What will be the output of the following Python code snippet on Raspberry Pi when... What will be the output of the following Python code snippet on Raspberry Pi when writing to an I2C device? | Raspberry Pi

Raspberry Pi - I2C Communication

What will be the output of the following Python code snippet on Raspberry Pi when writing to an I2C device?

from smbus2 import SMBus
bus = SMBus(1)
try:
    bus.write_byte_data(0x50, 0x01, 0xFF)
    print("Write successful")
except Exception as e:
    print(f"Error: {e}")
bus.close()

AError: [Errno 121] Remote I/O error

BNo output

CSyntaxError

DWrite successful

Step-by-Step Solution

Solution:

Step 1: Analyze the code flow
The code opens I2C bus 1, writes byte 0xFF to register 0x01 at device 0x50, then prints success if no error.
Step 2: Consider normal operation
If the device is connected and address is correct, write succeeds and prints "Write successful".
Final Answer:
Write successful -> Option D
Quick Check:
Successful write prints message [OK]

Quick Trick: If no error, print shows success message [OK]

Common Mistakes:

MISTAKES

Assuming error without device connected
Confusing syntax error with runtime error
Ignoring bus.close() importance

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More Raspberry Pi Quizzes

What will be the output of the following Python code snippet on Raspberry Pi when writing to an I2C device?

Step 1: Analyze the code flow

Step 2: Consider normal operation

Final Answer:

Quick Check:

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