#include <WiFi.h>
#include <PubSubClient.h>
//#include "DHTesp.h"
//const int DHT_PIN = 15;
//DHTesp dhtSensor;
const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* mqtt_server = "trisna.cloud.shiftr.io";
WiFiClient espClient;
PubSubClient client(espClient);
unsigned long lastMsg = 0;
#define MSG_BUFFER_SIZE (50)
float temp = 0;
float hum = 0;
int value = 0;
#define MSG_BUFFER_SIZE (50)
char msg[MSG_BUFFER_SIZE];
void setup_wifi() {
delay(10);
// We start by connecting to a WiFi network
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
randomSeed(micros());
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
}
void callback(char* topic, byte* payload, unsigned int length) {
Serial.print("Message arrived [");
Serial.print(topic);
Serial.print("] ");
for (int i = 0; i < length; i++) {
Serial.print((char)payload[i]);
}
Serial.println();
// Switch on the LED if an 1 was received as first character
if ((char)payload[0] == '1') {
digitalWrite(2, LOW); // Turn the LED on (Note that LOW is the voltage level
// but actually the LED is on; this is because
// it is active low on the ESP-01)
} else {
digitalWrite(2, HIGH); // Turn the LED off by making the voltage HIGH
}
}
void reconnect() {
// Loop until we're reconnected
while (!client.connected()) {
Serial.print("Attempting MQTT connection...");
// Create a random client ID
String clientId = "ESP8266Client-";
clientId += String(random(0xffff), HEX);
// Attempt to connect
if (client.connect(clientId.c_str())) {
Serial.println("Connected");
// Once connected, publish an announcement...
client.publish("/trisna/mqtt", "Indobot");
// ... and resubscribe
client.subscribe("/trisna/mqtt");
} else {
Serial.print("failed, rc=");
Serial.print(client.state());
Serial.println(" try again in 5 seconds");
// Wait 5 seconds before retrying
delay(5000);
}
}
}
void setup() {
pinMode(2, OUTPUT); // Initialize the BUILTIN_LED pin as an output
Serial.begin(115200);
setup_wifi();
client.setServer(mqtt_server, 1883);
client.setCallback(callback);
//dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
}
void loop() {
static char Volt1[15];
static char Volt2[15];
static char Amp1[15];
static char Amp2[15];
static char Pow1[15];
static char Pow2[15];
if (!client.connected()) {
reconnect();
}
client.loop();
unsigned long now = millis();
if (now - lastMsg > 2000) {
lastMsg = now;
//TempAndHumidity data = dhtSensor.getTempAndHumidity();
int sensorValue1 = analogRead(33); // Read from the first potentiometer connected to pin 12
int sensorValue2 = analogRead(32); // Read from the second potentiometer connected to pin 14
float voltage1 = sensorValue1 * (5.0 / 4095); // Convert sensor value to voltage for potentiometer 1
float voltage2 = sensorValue2 * (5.0 / 4095); // Convert sensor value to voltage for potentiometer 2
float ampere1 = voltage1 * 2;
float ampere2 = voltage2 * 3;
float power1 = voltage1 * ampere1;
float power2 = voltage2 * ampere2;
dtostrf(voltage1,5,1,Volt1);
dtostrf(voltage2,5,1,Volt2);
dtostrf(ampere1,5,1,Amp1);
dtostrf(ampere2,5,1,Amp2);
dtostrf(power1,5,1,Pow1);
dtostrf(power2,5,1,Pow2);
Serial.print("Votage 1 ");
Serial.println(voltage1);
client.publish("/trisna/voltage1", Volt1);
Serial.print("Votage 2 ");
Serial.println(voltage2);
client.publish("/trisna/voltage2", Volt2);
Serial.print("Ampere 1 ");
Serial.println(ampere1);
client.publish("/trisna/ampere1", Amp1);
Serial.print("Ampere 2 ");
Serial.println(ampere2);
client.publish("/trisna/ampere2", Amp2);
Serial.print("Power 1 ");
Serial.println(power1);
client.publish("/trisna/power1", Pow1);
Serial.print("Power 2 ");
Serial.println(power2);
client.publish("/trisna/power", Pow2);
}
}