WiFi with ESP8266/ESP32 in Arduino - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to include the WiFi library for ESP8266.

Arduino

#include <[1]>

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

AWiFi.h

BESP8266WiFi.h

CWiFiClient.h

DESP32WiFi.h

Attempts:

3 left

💡 Hint

Common Mistakes

Including the generic WiFi library instead of the ESP8266 specific one.

Using ESP32 library for ESP8266.

The ESP8266 requires the ESP8266WiFi.h library to manage WiFi connections.

2fill in blank

medium

Complete the code to connect to a WiFi network using SSID and password.

Arduino

WiFi.begin([1], password);

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

A"mySSID"

BmySSID

Cssid

D"password"

Attempts:

3 left

💡 Hint

Common Mistakes

Using variable names without quotes.

Using the password instead of SSID.

The SSID must be a string literal enclosed in double quotes.

3fill in blank

hard

Fix the error in the code to check if WiFi is connected.

Arduino

if (WiFi.[1]() == WL_CONNECTED) {

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Astatus

BisConnected

Cconnect

Dbegin

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'connect' or 'begin' which start connections, not check status.

Using 'isConnected' which does not exist.

The correct function to check WiFi connection status is status().

4fill in blank

hard

Fill both blanks to print the local IP address after connecting to WiFi.

Arduino

Serial.println(WiFi.[1]());
Serial.print("IP Address: ");
Serial.println(WiFi.[2]());

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Astatus

BlocalIP

CmacAddress

DSSID

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'macAddress' or 'SSID' instead of 'localIP'.

Not checking connection status before printing IP.

First, check connection status with status(). Then get the IP with localIP().

5fill in blank

hard

Fill all three blanks to create a WiFi access point with SSID and password, then print its IP.

Arduino

WiFi.softAP([1], [2]);
Serial.print("AP IP: ");
Serial.println(WiFi.[3]());

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

A"MyESP32AP"

B"12345678"

CsoftAPIP

DlocalIP

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'localIP' instead of 'softAPIP' for access point IP.

Not using quotes around SSID and password.

Use softAP with SSID and password strings, then get the access point IP with softAPIP().