♾️ Monitor sensors over the internet with Arduino UNO R4 WiFi

The next-gen UNO has WiFi out of the box — and the generator hands you ready code using only the libraries that already ship with the board (nothing to install).

This board's code

Example with temperature, humidity, CO₂ and motion — the generator builds it with YOUR sensors and your key:

// Gerado por Meca 3D Lab — meca3dlab.com.br (Arduino UNO R4 WiFi)
#include <WiFiS3.h>

const char* SSID  = "SUA_REDE";
const char* PASS  = "SUA_SENHA";
const char* HOST  = "meca3dlab.com.br";
const char* KEY   = "sk_live_SUACHAVE";
const long  EVERY = 30000;

WiFiSSLClient client;

void setup() {
  Serial.begin(115200);
  while (WiFi.begin(SSID, PASS) != WL_CONNECTED) delay(2000);
}

void loop() {
  // leia seus sensores aqui:
  float temp = 0;
  float hum = 0;
  float co2 = 0;
  float pir = 0;

  String body = "{\"temp\":24.7,\"hum\":55,\"co2\":620,\"pir\":0}";

  if (client.connect(HOST, 443)) {
    client.println("POST /api/ingest HTTP/1.1");
    client.println(String("Host: ") + HOST);
    client.println("Content-Type: application/json");
    client.println(String("X-Write-Key: ") + KEY);
    client.println(String("Content-Length: ") + body.length());
    client.println("Connection: close");
    client.println();
    client.print(body);
    while (client.connected() && !client.available()) delay(10);
    client.stop();
  }
  delay(EVERY);
}

Most-used sensors with it