Given this Python code on Raspberry Pi: import serial ser = serial.Serial('/dev/serial0', 115200) ser.write(b'Ping') response = ser.readline() print(response.decode().strip()) If Arduino replies with 'Pong\n', what is printed?

medium📝 Predict Output Q5 of 15

Raspberry Pi - Serial UART Communication

APong

BPong\n

CPing

DError

Step-by-Step Solution

Solution:

Step 1: Understand readline and decode
readline reads until newline, decode converts bytes to string.
Step 2: strip removes trailing newline
strip() removes '\n', so printed string is 'Pong'.
Final Answer:
Pong -> Option A
Quick Check:
readline + decode + strip = Pong [OK]

Quick Trick: Use strip() to remove newline from serial readline output [OK]

Common Mistakes:

MISTAKES

Printing raw bytes
Not stripping newline
Confusing sent and received data

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Given this Python code on Raspberry Pi: import serial ser = serial.Serial('/dev/serial0', 115200) ser.write(b'Ping') response = ser.readline() print(response.decode().strip()) If Arduino replies with 'Pong\n', what is printed?

Step 1: Understand readline and decode

Step 2: strip removes trailing newline

Final Answer:

Quick Check:

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