D1 R32 Wi-Fi

import mixiot	# Controls the Wi-Fi connection
import network	# Controls the Wi-Fi hardware
import time	# Controls pauses and timing

SSID = "YourNetwork"	# Write YOUR network name between the quotes

# Sets up wlan as the WiFi station (STA = join other networks)
wlan = network.WLAN(network.STA_IF)
wlan.active(True)	# Switch the Wi-Fi radio ON
mixiot.wlan_connect('wifiname','wifipassword')	# Ask to join the network & Write YOUR network password
print("Connecting to", SSID, "...")	# The announcement
while not wlan.isconnected():	# Wait WHILE not yet connected
    print("...")	# A progress dot
    time.sleep_ms(500)	# Half a second between attempts
print("CONNECTED!")	# The triumph
print("My IP address:", wlan.ifconfig()[0])	# The house number!

Serial Monitor: 

Connecting to YourNetwork ... 

... 

... 

CONNECTED! My IP address: 192.168.1.57 

💡 Note: two blocks carry this exercise network.WLAN(network.STA_IF) puts the radio in station mode (a guest joining networks, instead of hosting one), and ifconfig()[0] asks the router for your assigned house number. The waiting loop is your old friend while not ... the same patient guard that waited for your button press in Module 5, now waiting for a router's decision.

import network	# Controls the Wi-Fi hardware
import time	# Controls pauses and timing

# Sets up wlan as the WiFi station
wlan = network.WLAN(network.STA_IF)
wlan.active(True)	# Radio ON
print("Scanning the air for networks...")	# The announcement
nets = wlan.scan()	# The big question: what is out there?
print("Found", len(nets), "networks!")	# The census result
for n in nets:	# Visit each network found
    print("Name:", n[0], "| Signal:", n[3], "dBm")	# Its name and signal strength

Serial Monitor: 

Scanning the air for networks... 

Found 6 networks!

Name: b'HOME_WIFI' | Signal: -47 dBm 

Name: b'NEIGHBOR_2G' | Signal: -71 dBm 

Name: b'CLASSES_NET' | Signal: -38 dBm 

💡 Note: two firsts hide here. ① scan() returns a list and for n in nets: visits each member one by one; n[0] is the name, n[3] the signal. Lists are a bigger world (Level 2!), today you only peek inside. ② The signal is negative and closer to zero is STRONGER: -38 is excellent, -71 is struggling. Why negative? It is measured in dBm, a logarithmic scale anchored at an extreme reference for you, just memorize the rule: closer to zero = closer to the router. And b'...' wrapping the names? Bytes again the raw costume of over-the-air data.

import mixiot	# Controls the Wi-Fi connection
import network	# Controls the Wi-Fi hardware
import time	# Controls pauses and timing

# Sets up wlan as the WiFi station
wlan = network.WLAN(network.STA_IF)
wlan.active(True)	# Radio ON
mixiot.wlan_connect('wifiname','wifipassword')	# Join
while not wlan.isconnected():	# Wait for the router's answer
    time.sleep_ms(500)	# Patient half-seconds

info = wlan.ifconfig()	# The router hands over the full identity card
print("=== CONNECTION REPORT ===")	# The report card
print("Connected:", wlan.isconnected())	# Yes or no
print("My IP:", info[0])	# House number on this street
print("Netmask:", info[1])	# How big the street is
print("Gateway:", info[2])	# The door to the outside world
print("DNS:", info[3])	# The phonebook of names

Serial Monitor: 

=== CONNECTION REPORT === 

Connected: True 

My IP: 192.168.1.57 

Netmask: 255.255.255.0 

Gateway: 192.168.1.1 

DNS: 192.168.1.1 

💡 Note: ifconfig() returns all four values as ONE list, and [0]...[3] pick each field the same list indexing you met in the scan. Memorize the story, not the numbers: IP = your house, gateway = the street's exit door, DNS = the phonebook. When your home internet "breaks", the culprit is almost always one of these four and now you can read the diagnosis yourself.

import mixiot	# Controls the Wi-Fi connection
import network	# Controls the Wi-Fi hardware
import time	# Controls pauses and timing
import urequests	# Controls web requests

# Sets up wlan as the WiFi station
wlan = network.WLAN(network.STA_IF)
wlan.active(True)	# Radio ON
mixiot.wlan_connect('wifiname','wifipassword')	# Join the network
while not wlan.isconnected():	# Wait for connection
    time.sleep_ms(500)	# Patient half-seconds
print("Connected. Asking the website...")	# The announcement

response = urequests.get("http://clu-block.org")	# Knock on the website's door
print("Status code:", response.status_code)	# 200 means ALL GOOD
print("First part of the answer:")	# Introduce the body
print(response.text[0:119])	# Show the first 80 characters of the page
print("Request complete.")	# The ending

Serial Monitor: 

Connected. Asking the website... 

Status code: 200 

First part of the answer: ... 

...

Request complete. 

💡 Note: the whole internet in three lines. urequests.get(url) sends your request; status_code is the website's verdict 200 = here you go, 404 = not found, 500 = the site is having a bad day; and response.text is the actual page content (sliced to 80 characters with the same [0:80] trick as the barcode module). Do not skip response.close() each open request holds memory, and 32.5 repeats requests forever: without the goodbye, your robot runs out of room. Closing what you open a habit worth more than it looks.

import mixiot	# Controls the Wi-Fi connection
import network	# Controls the Wi-Fi hardware
import time	# Controls pauses and timing
import urequests	# Controls web requests

# Sets up wlan as the WiFi station
wlan = network.WLAN(network.STA_IF)
wlan.active(True)	# Radio ON
mixiot.wlan_connect('wifiname','wifipassword')	# Join the network
while not wlan.isconnected():	# Wait for the router
    time.sleep_ms(500)	# Patient half-seconds

print("=== ROBOT HEALTH CHECK ===")	# The console title
checks = 0	# Lifetime count of checks performed
good = 0	# Lifetime count of successful web checks
bad = 0	# Lifetime count of failed web checks

while True:	# Monitor forever
    checks += 1	# One more check begins
    print("================================")	# Panel frame
    print("CHECK", checks, "robot vitals")	# The headline
    print("WiFi connected:", wlan.isconnected())	# Vital 1
    print("My IP:", wlan.ifconfig()[0])	# Vital 2
    try:	# A web check can FAIL protect it
        response = urequests.get("http://clu-block.org")	# Knock on the door
        code = response.status_code	# Read the verdict
        response.close()	# The polite goodbye
        if code == 200:	# All good?
            good += 1	# One more healthy check
            print("Web check: UP (status 200)")	# The green verdict
        else:	# The site answered but with trouble
            bad += 1	# One more failed check
            print("Web check: WEIRD (status", code, ")")	# The yellow verdict
    except:	# The website could not be reached at all
        bad += 1	# One more failed check
        print("Web check: DOWN no answer!")	# The red verdict
    print("Lifetime: ", good, "UP |", bad, "DOWN")	# The history
    time.sleep(15)	# Next check in 15 seconds

Serial Monitor: 

=== ROBOT HEALTH CHECK === 

CHECK 1 robot vitals 

WiFi connected: True 

My IP: 192.168.1.57 

Web check: UP (status 200) 

Lifetime: 1 UP | 0 DOWN 

CHECK 2 robot vitals 

WiFi connected: True 

My IP: 192.168.1.57 

Web check: DOWN no answer! 

Lifetime: 1 UP | 1 DOWN

💡 Note: one brand-new word with a big job try: wraps the web request so that a failed connection *doesn't crash the program*; the `except:` catches the failure and turns it into a red verdict instead. This is the professional version of the else safety net: not just unknown commands, but **expected failures handled with dignity**. Count what you assembled: the connection report (32.3), the request (32.4), the verdict funnels, the lifetime counters, the timed panel. Real monitoring systems server dashboards, uptime pages, smoke alarms for the internet are this exact program with nicer fonts. And with that, the robot has a voice (IR), a phone (Bluetooth) and a passport (Wi-Fi). One family remains: robots talking to ROBOTS. ---