I try to get the Arduino UNO Wifi rev2 working with 3 LED's. Example from library carrefully transferred according instructions from Woolley Workshop " Uno WiFi Rev2 Or Arduino Uno With WiFi Shield From A Web Browser". I don't know the error. Help would be appreciated!
Here follows the not working code:
#include <WiFiNINA.h>
char ssid[] = "NASSAU-1"; // your network SSID (name)
char pass[] = "x"; // your network password (use for WPA, or use as key for WEP)
int keyIndex = 0; // your network key Index number (needed only for WEP)
const int redLED = 2;
const int yellowLED = 3;
const int greenLED = 5;
int status = WL_IDLE_STATUS;
WiFiServer server(80);
void setup() {
//Initialize serial and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for native USB port only
}
Serial.println("Access Point Web Server");
pinMode(redLED, OUTPUT);
pinMode(yellowLED, OUTPUT);
pinMode(greenLED, OUTPUT); // set the LED pin mode
// check for the WiFi module:
if (WiFi.status() == WL_NO_MODULE) {
Serial.println("Communication with WiFi module failed!");
// don't continue
while (true)
;
}
String fv = WiFi.firmwareVersion();
if (fv < WIFI_FIRMWARE_LATEST_VERSION) {
Serial.println("Please upgrade the firmware");
}
// print the network name (SSID);
Serial.print("Creating access point named: ");
Serial.println(ssid);
// Create open network. Change this line if you want to create an WEP network:
status = WiFi.beginAP(ssid, pass);
if (status != WL_AP_LISTENING) {
Serial.println("Creating access point failed");
// don't continue
while (true)
;
}
// wait 10 seconds for connection:
delay(10000);
// start the web server on port 80
server.begin();
// you're connected now, so print out the status
printWiFiStatus();
}
void loop() {
// compare the previous status to the current status
if (status != WiFi.status()) {
// it has changed update the variable
status = WiFi.status();
if (status == WL_AP_CONNECTED) {
// a device has connected to the AP
Serial.println("Device connected to AP");
} else {
// a device has disconnected from the AP, and we are back in listening mode
Serial.println("Device disconnected from AP");
}
}
WiFiClient client = server.available(); // listen for incoming clients
if (client) { // if you get a client,
Serial.println("new client"); // print a message out the serial port
String currentLine = ""; // make a String to hold incoming data from the client
while (client.connected()) { // loop while the client's connected
if (client.available()) { // if there's bytes to read from the client,
char c = client.read(); // read a byte, then
Serial.write(c); // print it out the serial monitor
if (c == '\n') { // if the byte is a newline character
// if the current line is blank, you got two newline characters in a row.
// that's the end of the client HTTP request, so send a response:
if (currentLine.length() == 0) {
// HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
// and a content-type so the client knows what's coming, then a blank line:
client.println("HTTP/1.1 200 OK");
client.println("Content-type:text/html");
client.println();
showWebPage(client);
void showWebPage(WiFiClient client) {
// HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
// and a content-type so the client knows what's coming, then a blank line:
client.println("HTTP/1.1 200 OK");
client.println("Content-type:text/html");
client.println();
// the content of the HTTP response follows the header:
client.println("<h1>Arduino Remote Control</h1>");
client.println("<table border=1 style='text-align:center'>");
client.println("<tr><th>Component</th><th>Status</th><th>Control</th></tr>");
// Red LED
client.print("<tr><td>Red LED</td><td>");
if (digitalRead(redLED)) {
client.print("<font style='color:green;'>ON</font>");
} else {
client.print("<font style='color:red;'>OFF</font>");
}
client.println("</td><td><a href='/redLED/on'>ON</a> / <a href='/redLED/off'>OFF</a></td></tr>");
// Yellow LED
client.print("<tr><td>Yellow LED</td><td>");
if (digitalRead(yellowLED)) {
client.print("<font style='color:green;'>ON</font>");
} else {
client.print("<font style='color:red;'>OFF</font>");
}
client.println("</td><td><a href='/yellowLED/on'>ON</a> / <a href='/yellowLED/off'>OFF</a></td></tr>");
// Green LED
client.print("<tr><td>Green LED</td><td>");
if (digitalRead(greenLED)) {
client.print("<font style='color:green;'>ON</font>");
} else {
client.print("<font style='color:red;'>OFF</font>");
}
client.println("</td><td><a href='/greenLED/on'>ON</a> / <a href='/greenLED/off'>OFF</a></td></tr>");
client.println("</table>");
// The HTTP response ends with another blank line
client.println();
}
// the content of the HTTP response follows the header:
client.print("Click <a href=\"/H\">here</a> turn the LED on<br>");
client.print("Click <a href=\"/L\">here</a> turn the LED off<br>");
int randomReading = analogRead(A1);
client.print("Random reading from analog pin: ");
client.print(randomReading);
// The HTTP response ends with another blank line:
client.println();
// break out of the while loop:
break;
} else { // if you got a newline, then clear currentLine:
currentLine = "";
}
} else if (c != '\r') { // if you got anything else but a carriage return character,
currentLine += c; // add it to the end of the currentLine
}
performRequest(currentLine);
void performRequest(String line) {
if (line.endsWith("GET /redLED/on")) {
digitalWrite(redLED, HIGH);
} else if (line.endsWith("GET /redLED/off")) {
digitalWrite(redLED, LOW);
} else if (line.endsWith("GET /yellowLED/on")) {
digitalWrite(yellowLED, HIGH);
} else if (line.endsWith("GET /yellowLED/off")) {
digitalWrite(yellowLED, LOW);
} else if (line.endsWith("GET /greenLED/on")) {
digitalWrite(greenLED, HIGH);
} else if (line.endsWith("GET /greenLED/off")) {
digitalWrite(greenLED, LOW);
}
}
}
}
// close the connection:
client.stop();
Serial.println("client disconnected");
}
}
void printWiFiStatus() {
// print the SSID of the network you're attached to:
Serial.print("SSID: ");
Serial.println(WiFi.SSID());
// print your WiFi shield's IP address:
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print where to go in a browser:
Serial.print("To see this page in action, open a browser to http://");
Serial.println(ip);
}
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