Hi, I am trying to connect the wifi using arduino uno wifi rev2 but I am not able to do so. They show me error 404 connection failed. I have try a lot of methods using the build in library source code in arduino and using code from website. Below is the website that I have tried.
First code:
#include <WiFiNINA.h>
char ssid[] = "yourNetwork"; // your network SSID (name)
char pass[] = "yourPassword"; // your network password (use for WPA, or use as key for WEP)
int keyIndex = 0; // your network key Index number (needed only for WEP)
int led = LED_BUILTIN;
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(led, 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();
// 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
}
// Check to see if the client request was "GET /H" or "GET /L":
if (currentLine.endsWith("GET /H")) {
digitalWrite(led, HIGH); // GET /H turns the LED on
}
if (currentLine.endsWith("GET /L")) {
digitalWrite(led, LOW); // GET /L turns the LED off
}
}
}
// 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);
}
For the above code, I have try to change my ssid and password using my house wifi router but I am not able to access it. It kept showing wifi loading. Therefore, when I used my mobile data hotspot, I am able to see that it can be connected to the Arduino board using my phone and the serial monitor is able to connect and print out the HTTP connection and I copy and paste the id no, it is not able to load the webpage on the server. Why is that so?
Second code:
/*
Project: Send Data to Firebase Using Arduino Uno WiFi Rev2
Board: Arduino Uno WiFi Rev2
External libraries:
– Arduino_LSM6DS3 by Arduino V1.0.0
– Firebase Arduino based on WiFiNINA by Mobizt V1.1.4
*/
#include <Arduino_LSM6DS3.h>
#include <Firebase_Arduino_WiFiNINA.h>
#define FIREBASE_HOST "your-firebase-project-id.firebaseio.com"
#define FIREBASE_AUTH "Your_Firebase_Database_Secret"
#define WIFI_SSID "Your WiFi SSID"
#define WIFI_PASSWORD "Your WiFi Password"
FirebaseData firebaseData;
String path = "/IMU_LSM6DS3";
String jsonStr;
void setup()
{
Serial.begin(9600);
delay(1000);
Serial.println();
Serial.print("Initialize IMU sensor…");
if (!IMU.begin()) {
Serial.println(" failed!");
while (1);
}
Serial.println(" done");
Serial.print("Accelerometer sample rate = ");
Serial.print(IMU.accelerationSampleRate());
Serial.println(" Hz");
Serial.print("Connecting to WiFi…");
int status = WL_IDLE_STATUS;
while (status != WL_CONNECTED) {
status = WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
Serial.print(".");
delay(300);
}
Serial.print(" IP: ");
Serial.println(WiFi.localIP());
Serial.println();
Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH, WIFI_SSID, WIFI_PASSWORD);
Firebase.reconnectWiFi(true);
}
void loop()
{
float x, y, z;
// Read IMU acceleration data
if (IMU.accelerationAvailable()) {
IMU.readAcceleration(x, y, z);
// Send data to Firebase with specific path
if (Firebase.setFloat(firebaseData, path + "/1-setFloat/X", x)) {
Serial.println(firebaseData.dataPath() + " = " + x);
}
if (Firebase.setFloat(firebaseData, path + "/1-setFloat/Y", y)) {
Serial.println(firebaseData.dataPath() + " = " + y);
}
if (Firebase.setFloat(firebaseData, path + "/1-setFloat/Z", z)) {
Serial.println(firebaseData.dataPath() + " = " + z);
}
// Push data using pushJSON
jsonStr = "{\"X\":" + String(x,6) + ",\"Y\":" + String(y,6) + ",\"Z\":" + String(z,6) + "}";
if (Firebase.pushJSON(firebaseData, path + "/2-pushJSON", jsonStr)) {
Serial.println(firebaseData.dataPath() + " = " + firebaseData.pushName());
}
else {
Serial.println("Error: " + firebaseData.errorReason());
}
Serial.println();
delay(2000);
}
}
for the second code, I wanted to send data using firebase but it is not able to connect it using ssid and password. I have check that my ssid and password is correct. I am not sure how am I not able to connect the wifi using ardunio wifi rev2. Source code using the library is also not able to do so. Any helps are great. Thank you.