Turn on Light From Thindspeak With Esp32

by CarlosVoltT in Circuits > Electronics

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Turn on Light From Thindspeak With Esp32

In this tutorial, we will show you how to control lights over the Internet using an ESP32 and the ThingSpeak platform.

In this tutorial, we will show you how to control lights over the Internet using an ESP32 and the ThingSpeak platform. Imagine being able to turn the lights in your home on or off from anywhere in the world with just a couple of clicks, or even automate the process based on real-time data. This is possible thanks to the combination of the ESP32, a powerful microcontroller with WiFi connectivity, and ThingSpeak, a cloud service that allows you to store and process data from sensors and other devices.

Throughout this tutorial, you will learn how to configure your ESP32 to connect to ThingSpeak, read data from a specific channel, and act on that data by turning lights on or off. This project is ideal for those who want to delve into the world of the Internet of Things (IoT) and explore how connected devices can interact with cloud services to create smart solutions.

Whether you're looking for a way to automate your home, create a remote lighting system, or just want to experiment with IoT, this tutorial will guide you step-by-step so you can do it easily and effectively.

An Esp32

Female pins

Dupont cables female male

PCB

Download gerber file –> Gerber_esp32

Relay Module

TECHNICAL SPECIFICATIONS

Operating Voltage: 5V DC
Control Signal: TTL (3.3V or 5V)
Number of Relays (channels): 1 CH
Max capacity: 10A/250VAC, 10A/30VDC
Max current: 10A (NO), 5A (NC)
Action time: 10 ms / 5 ms
To activate output NO: 0 Volts

#include <WiFi.h>

#include <ThingSpeak.h>

// Configuración de red WiFi

const char* ssid = "Tu_red_wifi"; // Nombre de la red WiFi

const char* contrasena = "Tu_clave_wifi"; // Contraseña de la red WiFi

// Configuración de ThingSpeak

unsigned long idCanal = 0000000; // Reemplaza con tu ID de canal

const char* claveAPIlectura = "Read_API_Keys"; // Reemplaza con tu clave de lectura

WiFiClient cliente;

int pinLuz = 12; // Pin donde está conectada la luz o el relé

void setup() {

Serial.begin(115200);

// Configurar el pin como salida

pinMode(pinLuz, OUTPUT);

// Conectar a la red WiFi

WiFi.begin(ssid, contrasena);

Serial.print("Conectando a WiFi...");

while (WiFi.status() != WL_CONNECTED) {

delay(1000);

Serial.print(".");

}

Serial.println("Conectado a WiFi");

// Conectar a ThingSpeak

ThingSpeak.begin(cliente);

}

void loop() {

// Leer el valor del canal

int estadoLuz = ThingSpeak.readIntField(idCanal, 1, claveAPIlectura); // Leer el campo 1

if (estadoLuz == 1) {

digitalWrite(pinLuz, HIGH); // Encender la luz

Serial.println("Luz encendida");

} else if (estadoLuz == 0) {

digitalWrite(pinLuz, LOW); // Apagar la luz

Serial.println("Luz apagada");

} else {

Serial.println("Error al leer el estado de la luz");

}

delay(15000); // Esperar 15 segundos antes de la próxima lectura

}