Solution:Step 1: Understand cause of UnicodeDecodeErrorGPS data may contain invalid UTF-8 bytes causing decode failure.Step 2: Fix decoding with error handlingUsing errors='replace' in decode prevents crash by replacing bad bytes.Final Answer:Use decode('utf-8', errors='replace') to handle bad bytes

[Solved] Identify the error in this Python code snippet reading GPS data: import serial ser = serial.Serial('/dev/serial0', 9600) while True: line = ser.readline().... | Raspberry Pi

Raspberry Pi - Serial UART Communication

Identify the error in this Python code snippet reading GPS data: import serial ser = serial.Serial('/dev/serial0', 9600) while True: line = ser.readline().decode('utf-8') print(line) The program crashes with UnicodeDecodeError. What is the fix?

ARemove decode() call

BChange baudrate to 115200

CUse decode('utf-8', errors='replace') to handle bad bytes

DUse ser.read() instead of readline()

Step-by-Step Solution

Solution:

Step 1: Understand cause of UnicodeDecodeError
GPS data may contain invalid UTF-8 bytes causing decode failure.
Step 2: Fix decoding with error handling
Using errors='replace' in decode prevents crash by replacing bad bytes.
Final Answer:
Use decode('utf-8', errors='replace') to handle bad bytes -> Option C
Quick Check:
Decode errors handled = Use decode('utf-8', errors='replace') to handle bad bytes [OK]

Quick Trick: Add errors='replace' to decode to avoid crashes [OK]

Common Mistakes:

MISTAKES

Changing baudrate unnecessarily
Removing decode causes bytes print
Using read() loses line structure

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What is the fix?

Step 1: Understand cause of UnicodeDecodeError

Step 2: Fix decoding with error handling

Final Answer:

Quick Check:

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