Lesson 6 of 7

Join a Wi-Fi network

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#include "WiFiS3.h" // Join Wi-Fi through the ESP32-S3 and print the IP address and the signal const char SSID[] = "iynk"; const char PASS[] = "iynk-demo"; // in a real sketch, keep passwords in arduino_secrets.h void setup() { Serial.begin(115200); Serial.print("Connecting to "); Serial.println(SSID); WiFi.begin(SSID, PASS); unsigned long start = millis(); while (WiFi.status() != WL_CONNECTED && millis() - start < 10000) { delay(500); Serial.print("."); } Serial.println(); if (WiFi.status() == WL_CONNECTED) { Serial.print("Connected, IP "); Serial.println(WiFi.localIP()); Serial.print("Signal "); Serial.print(WiFi.RSSI()); Serial.println(" dBm"); } else { Serial.println("Not connected: check the name and password"); } } void loop() { }

Stopped · Your code isn't running yet. Until you press Run, the board runs the program already on it.

Nothing printed yet. Press Run.

UNO R4 WiFi only: the ESP32-S3 joins a network for the RA4M1, which talks to it through the WiFiS3 library. Connect, then print the board's address and the signal strength.

Joins a simulated access point
The RA4M1 asks, the ESP32-S3 does the radio work
Pick the 5 GHz network to see a join fail

Wire it in

Sensors and actuators this board drives, with the real connections.

All 6 parts on the Arduino UNO R4 page

Join a Wi-Fi network

Try it yourself

Serial monitor

Checks

Break it

Parameters

Wire it in

Join a Wi-Fi network

Try it yourself

Serial monitor

Checks

Break it

Parameters

Wire it in