Ho cercato di realizzarla nel miglior modo in cui potevo con Paint, spero si capisca.
Per quanto riguarda il codice ecco qui:
/*************************************************************
You’ll need:
- Blynk IoT app (download from App Store or Google Play)
- ESP32 board
- Decide how to connect to Blynk
(USB, Ethernet, Wi-Fi, Bluetooth, ...)
There is a bunch of great example sketches included to show you how to get
started. Think of them as LEGO bricks and combine them as you wish.
For example, take the Ethernet Shield sketch and combine it with the
Servo example, or choose a USB sketch and add a code from SendData
example.
*************************************************************/
// Template ID, Device Name and Auth Token are provided by the Blynk.Cloud
// See the Device Info tab, or Template settings
#define BLYNK_TEMPLATE_ID ""
#define BLYNK_DEVICE_NAME ""
#define BLYNK_AUTH_TOKEN ""
// Comment this out to disable prints and save space
#define BLYNK_PRINT Serial
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <Wire.h>
//#include <string>
unsigned long last_time =0;
unsigned long current_time =0;
double watth=0;
double kwh=0;
int voltpv=18;
double wattmax=0;
double co2evitata=0;
double risparmio=0;
double ampere=0;
double voltaccumulo=0;
double watt=0;
float sensibilitasensorecorrente=0.066;
char auth[] = BLYNK_AUTH_TOKEN;
// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "";
char pass[] = ";
BlynkTimer timer;
void setup()
{
// Debug console
Serial.begin(115200);
Blynk.begin(auth, ssid, pass);
// You can also specify server:
//Blynk.begin(auth, ssid, pass, "blynk.cloud", 80);
//Blynk.begin(auth, ssid, pass, IPAddress(192,168,1,100), 8080);
//timer.setInterval(1000L, myTimer);
;
}
void loop()
{
Blynk.run();
//timer.run();
// You can inject your own code or combine it with other sketches.
// Check other examples on how to communicate with Blynk. Remember
// to avoid delay() function!
//voltaggio accumulo
float v=analogRead(34);
voltaccumulo=map(v, 0, 1023, 0, 12000);
//voltaccumulo=13.2;
//ampere
float voltaggiosensorecorrente=analogRead(21)*(5.0/1023.0);
ampere=(voltaggiosensorecorrente-2.5)/sensibilitasensorecorrente;
watt=ampere*voltpv;
//campionamento=campionamento/40;
/* float tensione=(5.0/1023.0)*campionamento;
float v2=tensione-(0.5*5.0)+0.012;
float corrente=v2/0.066; */
if(watt>wattmax)
wattmax=watt;
//calcolo kwh, risparmio e co2
if(watt>0){
last_time=current_time;
current_time=millis();
watth=watth + watt *(( current_time -last_time) /3600000.0); // calculate power in Watt-Hour // 1 Hour = 60mins x 60 Secs x 1000 Milli Secs
kwh=watth/1000;
co2evitata=kwh/0.7;
risparmio=kwh*0.32;
}
//lettura voltaggio accumulo
/* float temp;
float vletto=analogRead(34);
temp=vletto/0.86;
vletto=(int)temp;
voltaccumulo=((vletto*100)/10); */
Blynk.virtualWrite(V3, voltaccumulo);
Blynk.virtualWrite(V2, ampere);
Blynk.virtualWrite(V1, watt);
Blynk.virtualWrite(V4, wattmax);
Blynk.virtualWrite(V5, kwh);
Blynk.virtualWrite(V6, co2evitata);
Blynk.virtualWrite(V7, risparmio);
//Blynk.virtualWrite(V4, ReportAccumulo);
}
Ci sono un bel pò di commenti, questo perché sto facendo varie prove per capire come organizzare il tutto. Alcune variabili non centrano nulla con i sensori, solo per lo sfizio personale di organizzare una piccola pagina con Blynk per avere qualche informazione in più, per completezza.
Davide
