spidev library usage in Raspberry Pi - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the spidev library.

Raspberry Pi

import [1]

Drag options to blanks, or click blank then click option'

Aspidev

Bspi

Cspidev_lib

Dspilib

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect module names like 'spi' or 'spilib'.

The spidev library is imported using import spidev.

2fill in blank

medium

Complete the code to create an SPI object.

Raspberry Pi

spi = [1].SpiDev()

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ASPI

Bspidev

Cspi

DSpiDev

Attempts:

3 left

💡 Hint

Common Mistakes

Using uppercase 'SPI' or 'SpiDev' as the module name.

You create an SPI object by calling SpiDev() from the spidev module.

3fill in blank

hard

Fix the error in opening SPI bus 0, device 1.

Raspberry Pi

spi.open([1], 1)

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A0

B1

C2

D3

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping bus and device numbers or using invalid bus numbers.

The SPI bus number is usually 0 or 1. To open bus 0, device 1, use spi.open(0, 1).

4fill in blank

hard

Fill both blanks to set SPI max speed to 1 MHz and mode to 0.

Raspberry Pi

spi.max_speed_hz = [1]
spi.mode = [2]

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A1000000

B500000

C0

D1

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong speed values or wrong mode numbers.

Set max_speed_hz to 1,000,000 for 1 MHz speed and mode to 0 for SPI mode 0.

5fill in blank

hard

Fill all three blanks to write bytes [0x01, 0x02, 0x03] and read response.

Raspberry Pi

response = spi.xfer2([1])
print([2])
[3].close()

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A[0x01, 0x02, 0x03]

Bresponse

Cspi

D[1, 2, 3]

Attempts:

3 left

💡 Hint

Common Mistakes

Using decimal list instead of hex, printing wrong variable, or forgetting to close SPI.

Use spi.xfer2([0x01, 0x02, 0x03]) to send bytes and get the response. Then print the response variable. Finally, close the SPI connection with spi.close().