Given this Python code reading GPS data: import serial ser = serial.Serial('/dev/serial0', 9600, timeout=1) line = ser.readline().decode('ascii', errors='replace') print(line.strip()) If the GPS sends the sentence '$GPGGA,123519,4807.038,N,01131.000,E,1,08,0.9,545.4,M,46.9,M,,*47', what will be printed?

medium📝 Predict Output Q4 of 15

Raspberry Pi - Serial UART Communication

AGPGGA,123519,4807.038,N,01131.000,E,1,08,0.9,545.4,M,46.9,M,,*47

B$GPGGA,123519,4807.038,N,01131.000,E,1,08,0.9,545.4,M,46.9,M,,*47

CError decoding line

DNone

Step-by-Step Solution

Solution:

Step 1: Understand readline and decode
ser.readline() reads one line including the newline; decode converts bytes to string.
Step 2: Apply strip()
strip() removes whitespace including newline but not internal characters, so the full sentence remains.
Final Answer:
$GPGGA,123519,4807.038,N,01131.000,E,1,08,0.9,545.4,M,46.9,M,,*47 -> Option B
Quick Check:
Output line = full NMEA sentence [OK]

Quick Trick: strip() removes whitespace, not sentence content [OK]

Common Mistakes:

MISTAKES

Assuming $ is removed
Expecting decoding error
Confusing strip with replace

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Step 1: Understand readline and decode

Step 2: Apply strip()

Final Answer:

Quick Check:

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