Hello guys from the forum,
as by object, I have a problem with my Arduino uno wifi rev2, with which I would like
connect (from local) to the mysql database of Xampp that runs virtually in my pc...
I have successfully followed the following guide up to point n 6
From point n 7, I made some changes and I can’t connect:
The error generated by Arduino is:
"failed connection"
I modified the Arduino code to fit it from the Ethernet shield to my wifi.
So to solve the case, I have a few specific questions:
#include <SPI.h>
#include <WiFiNINA.h>
#include "arduino_secrets.h"
///////please enter your sensitive data in the Secret tab/arduino_secrets.h
char ssid[] = SECRET_SSID; // your network SSID (name)
char pass[] = SECRET_PASS; // your network password (use for WPA, or use as key for WEP)
int keyIndex = 0; // your network key index number (needed only for WEP)
WiFiClient client;
int status = WL_IDLE_STATUS;
int HTTP_PORT = 80;
String HTTP_METHOD = "GET";
char HOST_NAME[] = "192.168.1.3"; // change to your PC's IP address
String PATH_NAME = "/insert_temp.php";
String queryString = "?temperature=29.1";
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
}
// 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");
}
// attempt to connect to WiFi network:
while (status != WL_CONNECTED) {
Serial.print("Attempting to connect to SSID: ");
Serial.println(ssid);
// Connect to WPA/WPA2 network. Change this line if using open or WEP network:
status = WiFi.begin(ssid, pass);
// wait 10 seconds for connection:
delay(10000);
}
Serial.println("Connected to WiFi");
printWifiStatus();
// connect to web server on port 80:
if(client.connect(HOST_NAME, HTTP_PORT)) {
// if connected:
Serial.println("Connected to server");
// make a HTTP request:
// send HTTP header
client.println(HTTP_METHOD + " " + PATH_NAME + queryString + " HTTP/1.1");
client.println("Host: " + String(HOST_NAME));
client.println("Connection: close");
client.println(); // end HTTP header
while(client.connected()) {
if(client.available()){
// read an incoming byte from the server and print it to serial monitor:
char c = client.read();
Serial.print(c);
}
}
// the server's disconnected, stop the client:
client.stop();
Serial.println();
Serial.println("disconnected");
} else {// if not connected:
Serial.println("connection failed");
}
}
void loop() {
/*
// if there are incoming bytes available
// from the server, read them and print them:
while (client.available()) {
char c = client.read();
Serial.write(c);
}
// if the server's disconnected, stop the client:
if (!client.connected()) {
Serial.println();
Serial.println("disconnecting from server.");
client.stop();
// do nothing forevermore:
while (true);
} */
}
void printWifiStatus() {
// print the SSID of the network you're attached to:
Serial.print("SSID: ");
Serial.println(WiFi.SSID());
// print your board's IP address:
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print the received signal strength:
long rssi = WiFi.RSSI();
Serial.print("signal strength (RSSI):");
Serial.print(rssi);
Serial.println(" dBm");
}
Hi, relating to your question. how did you solve the refused connection error. I am trying to make my Arduino uno wifi send accelerometer data to firibase. Use code tags to format code for the forum..
