Arduino nano 33 iot Wifi.webserver

[jeongminuk]

A simple web server was created using a board. The code for raising the sensor value to the web server through the board was configured through an example. However, the speed at which the sensor value is updated on the web server is not fast. How can I quickly update the sensor value?

[jeongminuk]

<
#include <SPI.h>
#include <WiFiNINA.h>
#include <Arduino_LSM6DS3.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)

int status = WL_IDLE_STATUS;

WiFiServer server(80);

void setup() {
//Initialize serial and wait for port to open:
Serial.begin(9600);

if (!IMU.begin()) { //LSM6DS3센서 시작
Serial.println("LSM6DS3센서 오류!");
while (1);
}

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);

}
server.begin();
// you're connected now, so print out the status:
printWifiStatus();
}

int err;
float sensingValue[2];
float analogChannel[2];

void loop() {
// listen for incoming clients
WiFiClient client = server.available();
if (client) {
Serial.println("new client");
// an HTTP request ends with a blank line
boolean currentLineIsBlank = true;
while (client.connected()) {
if (client.available()) {
char c = client.read();
Serial.write(c);
// if you've gotten to the end of the line (received a newline
// character) and the line is blank, the HTTP request has ended,
// so you can send a reply
if (c == '\n' && currentLineIsBlank) {
// send a standard HTTP response header
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("Connection: close"); // the connection will be closed after completion of the response
client.println("Refresh: 5"); // refresh the page automatically every 5 sec
client.println();
client.println("");
client.println("");
// output the value of each analog input pin
for (int i = 0; i < 3; i++) {
IMU.readAcceleration(sensingValue[0],sensingValue[1],sensingValue[2]);
Serial.print(sensingValue[0]);
analogChannel[i] = sensingValue[i];
int sensorReading = analogRead(analogChannel[i]);
client.print("Sensing value ");
client.print(analogChannel[i]);
client.print(" is ");
client.print(sensorReading);
client.println("
");
}
client.println("");
break;
}
if (c == '\n') {
// you're starting a new line
currentLineIsBlank = true;
} else if (c != '\r') {
// you've gotten a character on the current line
currentLineIsBlank = false;
}
}
}
// give the web browser time to receive the data
delay(1);

// 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 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");
}
/>
this is the code of the WebServer

[Juraj]

the refresh of the page is set to every 5 seconds with client.println("Refresh: 5");