[Solved] Identify the error in this code snippet for SPI communication: import spidev spi = spidev.SpiDev() spi.open(0) spi.xfer2([0x01, 0x02]) | Raspberry Pi

Raspberry Pi - SPI Communication

Identify the error in this code snippet for SPI communication:

import spidev
spi = spidev.SpiDev()
spi.open(0)
spi.xfer2([0x01, 0x02])

Aspidev module is not imported correctly

Bspi.xfer2() cannot send lists

Cspi.open() requires two arguments: bus and device

Dspi must be closed before opening

Step-by-Step Solution

Solution:

Step 1: Check spi.open() method signature
spi.open() requires two arguments: bus number and device number.
Step 2: Identify missing argument
Code calls spi.open(0) with only one argument, causing error.
Final Answer:
spi.open() requires two arguments: bus and device -> Option C
Quick Check:
spi.open(bus, device) needs two parameters [OK]

Quick Trick: spi.open() needs bus and device numbers [OK]

Common Mistakes:

MISTAKES

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