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beehive_scale.ino
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beehive_scale.ino
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#include <SPIFFS.h>
#include <WiFi.h>
#include <WiFiMulti.h>
#include <HX711.h>
#include "ArduinoJson.h"
#include "src/thing_speak_wrapper.hpp"
#include "src/configurator.hpp"
#include "src/mail_sender.hpp"
#include "src/exception/json_exception.hpp"
#include "src/exception/mail_exception.hpp"
#include "src/exception/thing_speak_exception.hpp"
#include "src/thing_speak_wrapper.hpp"
#define DOUT 13
#define CLK 12
HX711 scale;
WiFiMulti wifiMulti;
Configurator *configurator;
MailSender *sender;
ThingSpeakWrapper *thingSpeakWrapper;
unsigned long previousMilis = 0;
unsigned long interval;
float calibration_factor = 40000;
double treshold;
double hysteresis;
bool tresholdReset = true;
void setup()
{
try
{
Serial.begin(115200);
delay(2000);
if (!SPIFFS.begin(true))
{
Serial.println("SPIFFS Mount Failed");
return;
}
configurator = new Configurator("/esp32.json");
configurator->parse();
configurator->loadConfig();
treshold = configurator->getMassThreshold();
hysteresis = configurator->getHysteresisOfMass();
for (const WiFiPass w : configurator->getNetworksArray())
{
wifiMulti.addAP(w.SSID.c_str(), w.password.c_str());
}
if (wifiMulti.run() == WL_CONNECTED)
{
Serial.print("WiFi connected: ");
Serial.print(WiFi.SSID());
Serial.print(" ");
Serial.print(WiFi.RSSI());
Serial.print(" ");
Serial.println(WiFi.localIP());
}
sender = new MailSender(
configurator->getSmtpHost(),
configurator->getSmtpPort(),
configurator->getEmailLogin(),
configurator->getEmailPassword());
sender->setMessageHeaders("ESPWaga", configurator->getRecipients());
sender->configureNtpServer(configurator->getNtpServer());
interval = configurator->getIntervalSeconds() * 1000;
sender->connect();
sender->disconnect();
scale.begin(DOUT, CLK);
scale.set_scale(calibration_factor);
scale.tare();
thingSpeakWrapper = new ThingSpeakWrapper(
configurator->getThingSpeakChannelId(),
configurator->getThingSpeakApiKey()
);
}
catch (JsonException e)
{
Serial.println(e.what());
Serial.println("Failed to load configuration");
}
catch (MailException e)
{
Serial.println(e.what());
}
catch (...)
{
Serial.println("Unknown exception in setup");
}
}
void loop()
{
try
{
unsigned long currentMillis = millis();
float mass = -scale.get_units();
Serial.println(mass);
if (mass > treshold && tresholdReset)
{
while (wifiMulti.run() != WL_CONNECTED)
{
Serial.println("WiFi not connected!");
delay(200);
}
Serial.print("WiFi connected: ");
Serial.print(WiFi.SSID());
Serial.print(" ");
Serial.print(WiFi.RSSI());
Serial.print(" ");
Serial.println(WiFi.localIP());
previousMilis = currentMillis;
sender->connect();
mass = std::ceil(mass * 100.0) / 100.0;
std::string massStr = std::to_string(mass);
massStr = massStr.substr(0, massStr.find(".") + 3);
std::string mailBody = std::string();
mailBody.append("Masa: ").append(massStr);
sender->setMessageContent(String(mailBody.c_str()));
sender->sendMail();
sender->disconnect();
if (mass > treshold)
{
tresholdReset = false;
}
}
if ((currentMillis - previousMilis) >= interval)
{
while (wifiMulti.run() != WL_CONNECTED)
{
Serial.println("WiFi not connected!");
delay(200);
}
Serial.print("WiFi connected: ");
Serial.print(WiFi.SSID());
Serial.print(" ");
Serial.print(WiFi.RSSI());
Serial.print(" ");
Serial.println(WiFi.localIP());
thingSpeakWrapper->sendMassData(1, mass);
}
if (mass < treshold - hysteresis)
{
tresholdReset = true;
}
}
catch (MailException e)
{
Serial.println(e.what());
Serial.println("Failed to send mail");
}
catch (ThingSpeakException e){
Serial.println(e.what());
Serial.println("Failed to send update on ThingSpeak");
}
catch (...)
{
Serial.println("Unknown exception in loop");
}
}