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aqua_NODEMCU.ino
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/*
Aquarium Automation using NodeMCU
Copyright (C) 2021 desiFIsh
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Initial Beta Version
V1.0 OTA update, oled connection, wifi icons(connection/disconnection and WiFi signal strength display) 15/11/21
v1.2 Added DS3231 for back time keeping, added a way to power up when there is no wifi signal 16/11/21
v1.3 Added relays to the circuit (4 channel active-low) 17/11/21
v1.4 Added relay initialization function (helpful after powerloss), WEB SERVER (for controlling relays, getting temperature and time), further optimizations 25/11/21
v1.5 Added control to turn off/on oled display as you want (via Web Server) 09/12/21
v1.6 Added control to turn off/on Aqaurium Light as you want (via Web Server). Previously the timer would overwrite the settings. {Needs optimization for restarts} 14/12/21
v1.7 Optimizations for timers {Still needs optimizations} 16/12/21
v1.71 Bug updates 21/12/21
v1.8 Added Auto/Manual Control for all relays. Updates to HTML of Web Server.
v1.9 Added option to update time via web-server and other updates
v1.10 Added option to auto start relay (when off) and added visual message over screen when time is updating
v1.11 Updated the UI of AutoTimers to give options for 5 min, 10min, 15 min, 25 min, 30 min, 45 min timers and other mild updates
v1.12 Added Power Saver Mode (Powerhead and Skimmer would automatically ON for 10 min then OFF for 10 min and so on) and like other features, these can be customised.
v1.121 Added security feature to automatically update time if rtc resets to 1970
*/
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <ESP8266WiFi.h>
#include <ESP8266mDNS.h>
#include <WiFiUdp.h>
#include <ArduinoOTA.h>
#include <NTPClient.h>
#include <DS3231.h>
#include <string.h>
#include "global.h" //remove this
DS3231 Clock;
bool century = false;
bool h12Flag = false;
bool pmFlag;
#ifndef STASSID
#define STASSID "YOUR_SSID" // WIFI NAME/SSID
#define STAPSK "YOUR_PASSWORD" // WIFI PASSWORD
#endif
const char *ssid = pssid; // remove "pssid" and write "STASSID"
const char *password = ppass; // remove "ppass" and write "STAPSK"
// Set web server port number to 80
WiFiServer server(80);
// Variable to store the HTTP request
String header;
// Auxiliar variables to store the current output state
String Relay1State = "off";
String Relay2State = "off";
String Relay3State = "off";
String Relay4State = "off";
// Define timeout time in milliseconds (example: 2000ms = 2s)
unsigned long currentTime = millis();
unsigned long previousTime = 0;
const long timeoutTime = 2000; // client timeout for the webserver
unsigned long lastTime = 0;
const long timerDelay = 30000; // check relay status every 30 seconds
unsigned long lastTime1 = 0;
const long timerDelay1 = 5000; // check wifi status every 900 m.seconds
// timer settings for autotimers
unsigned long lastAutoTimer1 = 0, lastAutoTimer2 = 0, lastAutoTimer3 = 0, lastAutoTimer4 = 0;
long autoTimerDelay1 = 0, autoTimerDelay2 = 0, autoTimerDelay3 = 0, autoTimerDelay4 = 0; // example if it would have to check after 5 mins i.e. 5*60*1000=300000
// utc offset according to India, please change according to your location
const long utcOffsetInSeconds = 19800;
char week[7][20] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
// Define NTP Client to get time
WiFiUDP ntpUDP;
NTPClient timeClient(ntpUDP, "asia.pool.ntp.org", utcOffsetInSeconds);
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
#define OLED_RESET LED_BUILTIN // Reset pin # (or -1 if sharing Arduino reset pin)
#define SCREEN_ADDRESS 0x3C // 0x3c for 0x78
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
// different WiFi icons Full, Medium, Half and Low Signal. ! for no connection
static const unsigned char PROGMEM wifiFull[] = {
0x00, 0x00, 0x00, 0x00, 0x07, 0xE0, 0x3F, 0xFC, 0x70, 0x0E, 0xE0, 0x07, 0x47, 0xE2, 0x1E, 0x78,
0x18, 0x18, 0x03, 0xC0, 0x07, 0xE0, 0x00, 0x00, 0x01, 0x80, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00};
static const unsigned char PROGMEM wifiMed[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xE0, 0x1E, 0x78,
0x18, 0x18, 0x03, 0xC0, 0x07, 0xE0, 0x00, 0x00, 0x01, 0x80, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00};
static const unsigned char PROGMEM wifiHalf[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x03, 0xC0, 0x07, 0xE0, 0x00, 0x00, 0x01, 0x80, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00};
static const unsigned char PROGMEM wifiLow[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x80, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00};
const unsigned char picture[] PROGMEM = { // picture of a window (during boot)
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xfe, 0x7f, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
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// forward declarations
/**
* @brief Checks time conditions for relay operation
* @param onTime Time to turn relay on (in 24hr format, e.g. 1435 for 2:35 PM)
* @param offTime Time to turn relay off (in 24hr format)
* @param number Relay number (1-4) to control
*/
void checkTimeFor(int, int, int);
/**
* @brief Displays WiFi signal strength icon on OLED
*/
void showWifiSignal();
/**
* @brief Displays current time and date on OLED
*/
void showTime();
/**
* @brief Updates RTC time from NTP server
*/
void updateRTC();
/**
* @brief Displays relay status indicators on OLED
*/
void relayStatusPrinter();
/**
* @brief Handles web client connections and generates HTML response
* @param client WiFiClient object for the connected client
* @param currentLine Current input line from client
*/
void clientPage(WiFiClient, String);
// relay gpio pins
const byte relayPin1 = 0;
const byte relayPin2 = 12;
const byte relayPin3 = 13;
const byte relayPin4 = 14;
// status flags
byte R1Flag = 0, R2Flag = 0, R3Flag = 0, R4Flag = 0, R1PowerSave = 0, R1PsAlt = 2, R2PowerSave = 0, R2PsAlt = 2; // R1PsAlt=2 means garbage state
byte OLEDConfig = 0, R1Config = 2, R2Config = 2, R3Config = 0, R4Config = 1; // Config=1 means auto (based on timer),Config=0 means Manual and Config=2 means PowSave. Same for aquarium light
byte OLEDStatus = 1, updateTime = 0; // Status = 1 means OLED DISPLAY is ON and reversed for 0 (works only if Config is 0)
byte autoTimer1 = 0, autoTimer2 = 0, autoTimer3 = 0, autoTimer4 = 0;
unsigned long R1PslastTime1 = 0, R2PslastTime1 = 0;
long R1PstimerDelay1 = 0, R2PstimerDelay1 = 0;
// Relay activation
#define RELAY1 false // mark true to activate, and false to deactivate (activation means the timer activation)
#define RELAY2 false
#define RELAY3 false
#define RELAY4 true
// Relay Timing and definitions
#define RELAY1TIME 1200, 1900, 1 // first number is "ON" time in 24 hours. i.e. 2:35pm would be 1435, second one is turn "OFF" time, and the last one is Relay Number
#define RELAY1ON digitalWrite(relayPin1, HIGH)
#define RELAY1OFF digitalWrite(relayPin1, LOW)
#define RELAY2TIME 1200, 1900, 2
#define RELAY2ON digitalWrite(relayPin2, HIGH)
#define RELAY2OFF digitalWrite(relayPin2, LOW)
#define RELAY3TIME 1200, 1900, 3
#define RELAY3ON digitalWrite(relayPin3, HIGH)
#define RELAY3OFF digitalWrite(relayPin3, LOW)
#define RELAY4TIME 800, 1900, 4
#define RELAY4ON digitalWrite(relayPin4, HIGH)
#define RELAY4OFF digitalWrite(relayPin4, LOW)
// oled display off at night timings (needs improvement)
#define OLED_OFF 9 // Hour only. In 24 hours mode i.e. 23 for 11 pm
#define OLED_ON 7
const String newHostname = "AquariumNode";
/**
* @brief Initializes relay states after power loss
* Checks and sets initial states for all relays based on their activation settings
*/
void relayInitialize() // checks and initializes all relay in case of powerloss (takes effect only if relay is activated above). Default: Turns ON the relay
{
if (RELAY1)
{
checkTimeFor(RELAY1TIME);
}
else
{
RELAY1ON;
R1Flag = 1;
Relay1State = "on";
}
if (RELAY2)
{
checkTimeFor(RELAY2TIME);
}
else
{
RELAY2ON;
R2Flag = 1;
Relay2State = "on";
}
if (RELAY3)
{
checkTimeFor(RELAY3TIME);
}
else
{
RELAY3ON;
R3Flag = 1;
Relay3State = "on";
}
if (RELAY4)
{
checkTimeFor(RELAY4TIME);
}
else
{
RELAY4ON;
R4Flag = 1;
Relay4State = "on";
}
}
/**
* @brief Arduino setup function
* Initializes hardware, connects to WiFi, starts web server and configures OTA updates
*/
void setup()
{
pinMode(relayPin1, OUTPUT);
pinMode(relayPin2, OUTPUT);
pinMode(relayPin3, OUTPUT);
pinMode(relayPin4, OUTPUT);
Wire.begin();
Serial.begin(57600);
relayInitialize();
// SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
if (!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS))
{
Serial.println(F("SSD1306 allocation failed"));
delay(3000);
ESP.restart();
}
display.clearDisplay();
display.drawBitmap(0, 0, picture, 128, 64, WHITE);
display.display();
delay(1000);
display.clearDisplay();
display.setCursor(30, 25); // Start at top-left corner
display.setTextSize(1); // Normal 1:1 pixel scale
display.setTextColor(WHITE); // Draw white text
display.println(F("Connecting..."));
display.display();
// Wifi connection
WiFi.mode(WIFI_STA);
WiFi.hostname(newHostname.c_str()); // Set new hostname
WiFi.begin(ssid, password);
int count = 0;
while (WiFi.waitForConnectResult() != WL_CONNECTED)
{
display.clearDisplay();
display.setTextSize(2);
display.setCursor(0, 0); // Start at top-left corner
display.println(F("Connection\n\nFailed!"));
display.display();
delay(5000);
// ESP.restart();
count = 1;
break;
}
// OTA UPDATE SETTINGS !! CAUTION !! PROCEED WITH PRECAUTION
ArduinoOTA.onStart([]()
{
String type;
if (ArduinoOTA.getCommand() == U_FLASH) {
type = "sketch";
} else { // U_FS
type = "filesystem";
}
// NOTE: if updating FS this would be the place to unmount FS using FS.end()
display.clearDisplay();
display.setTextSize(2);
display.setCursor(0, 0); // Start at top-left corner
display.println(F("OTA Update\n"));
display.setTextSize(1);
display.print("Type: ");
display.print(type);
display.display();
delay(2000); });
ArduinoOTA.onEnd([]()
{
display.clearDisplay();
display.setTextSize(2);
display.setCursor(15, 25); // Start at top-left corner
display.println(F("Rebooting"));
display.display(); });
ArduinoOTA.onProgress([](unsigned int progress, unsigned int total)
{
display.clearDisplay();
display.setTextSize(2);
display.setCursor(0, 10); // Start at top-left corner
display.print("Progress: ");
display.setCursor(50, 35);
display.print((progress / (total / 100)));
display.setCursor(88, 35);
display.print("%");
display.display(); });
ArduinoOTA.onError([](ota_error_t error)
{
display.clearDisplay();
display.setTextSize(2);
display.setCursor(0, 10); // Start at top-left corner
display.print("Error!");
display.display();
//Serial.printf("Error[%u]: ", error);
if (error == OTA_AUTH_ERROR) {
display.clearDisplay();
display.setTextSize(2);
display.setCursor(0, 10); // Start at top-left corner
display.print("Auth Failed");
display.display();
} else if (error == OTA_BEGIN_ERROR) {
display.clearDisplay();
display.setTextSize(2);
display.setCursor(0, 10); // Start at top-left corner
display.print("Begin Failed");
display.display();
} else if (error == OTA_CONNECT_ERROR) {
display.clearDisplay();
display.setTextSize(2);
display.setCursor(0, 10); // Start at top-left corner
display.print("Connect Failed");
display.display();
} else if (error == OTA_RECEIVE_ERROR) {
display.clearDisplay();
display.setTextSize(2);
display.setCursor(0, 10); // Start at top-left corner
display.print("Receive Failed");
display.display();
} else if (error == OTA_END_ERROR) {
display.clearDisplay();
display.setTextSize(2);
display.setCursor(0, 10); // Start at top-left corner
display.print("End Failed");
display.display();
} });
ArduinoOTA.begin();
// OTA UPDATE END
// checks if wifi connected
if (count == 0)
{
display.clearDisplay();
display.setTextSize(2);
display.setCursor(0, 0); // Start at top-left corner
display.println(F("Connected!"));
display.setTextSize(1);
display.println("");
display.println(WiFi.SSID());
display.print("\nIP address:\n");
display.println(WiFi.localIP());
display.display();
delay(4000);
display.clearDisplay();
display.setCursor(0, 0);
timeClient.begin(); // NTP time
timeClient.update();
display.println(F("Started Time Client"));
display.display();
delay(2000);
display.clearDisplay();
updateRTC();
display.clearDisplay();
server.begin();
display.println(F("Server Started!"));
display.display();
delay(2000);
display.clearDisplay();
}
}
/**
* @brief Arduino main loop function
* Handles OTA updates, web clients, relay timing, display updates and power save modes
*/
void loop()
{
ArduinoOTA.handle();
WiFiClient client = server.available(); // Listen for incoming clients
//****************************************RELAY POWERSAVE FEATURE********************************
// RELAY 1 10 min ON and 20 min OFF
if (R1PowerSave == 1)
{
R1PstimerDelay1 = 600000; // 10 mins
R1PslastTime1 = millis();
RELAY1ON;
R1PowerSave = 0;
R1PsAlt = 1;
R1Flag = 1;
Relay1State = "on";
R1Config = 2;
}
if (R1PsAlt == 1 && R1Config == 2)
{
if ((millis() - R1PslastTime1) > R1PstimerDelay1)
{
RELAY1OFF;
R1PsAlt = 0;
R1PstimerDelay1 = 600000;
R1PslastTime1 = millis();
R1Flag = 0;
Relay1State = "off";
}
}
else if (R1PsAlt == 0 && R1Config == 2)
{
if ((millis() - R1PslastTime1) > R1PstimerDelay1)
{
RELAY1ON;
R1PsAlt = 1;
R1PstimerDelay1 = 600000;
R1PslastTime1 = millis();
R1Flag = 1;
Relay1State = "on";
}
}
// RELAY 2 10 min ON and 10 min OFF
if (R2PowerSave == 1)
{
R2PstimerDelay1 = 600000; // 10 mins
R2PslastTime1 = millis();
RELAY2ON;
R2PowerSave = 0;
R2PsAlt = 1;
R2Flag = 1;
Relay2State = "on";
R2Config = 2;
}
if (R2PsAlt == 1 && R2Config == 2)
{
if ((millis() - R2PslastTime1) > R2PstimerDelay1)
{
RELAY2OFF;
R2PsAlt = 0;
R2PstimerDelay1 = 600000;
R2PslastTime1 = millis();
R2Flag = 0;
Relay2State = "off";
}
}
else if (R2PsAlt == 0 && R2Config == 2)
{
if ((millis() - R2PslastTime1) > R2PstimerDelay1)
{
RELAY2ON;
R2PsAlt = 1;
R2PstimerDelay1 = 600000;
R2PslastTime1 = millis();
R2Flag = 1;
Relay2State = "on";
}
}
//**************************************END RELAY POWER SAVE FEATURE****************************************
if (updateTime == 1)
{
updateRTC();
updateTime = 0;
}
if (client)
{ // If a new client connects
String currentLine = ""; // make a String to hold incoming data from the client
currentTime = millis();
previousTime = currentTime;
clientPage(client, currentLine);
// Clear the header variable
header = "";
// Close the connection
client.stop();
}
display.clearDisplay();
// checking timers for relays
if ((millis() - lastTime) > timerDelay)
{
if (R1Config == 0)
{
}
else if (R1Config == 1)
{
if (RELAY1)
{
checkTimeFor(RELAY1TIME);
}
}
if (R2Config == 0)
{
}
else if (R2Config == 1)
{
if (RELAY2)
{
checkTimeFor(RELAY2TIME);
}
}
if (R3Config == 0)
{
}
else if (R3Config == 1)
{
if (RELAY3)
{
checkTimeFor(RELAY3TIME);
}
}
if (R4Config == 0)
{
}
else if (R4Config == 1)
{
if (RELAY4)
{
checkTimeFor(RELAY4TIME);
}
}
lastTime = millis();
}
// autoTimer checkings
if (autoTimer1 == 1)
{
if ((millis() - lastAutoTimer1) > autoTimerDelay1)
{
R1Flag = 1;
RELAY1ON;
Relay1State = "on";
autoTimer1 = 0;
}
}
if (autoTimer2 == 1)
{
if ((millis() - lastAutoTimer2) > autoTimerDelay2)
{
R2Flag = 1;
RELAY2ON;
Relay2State = "on";
autoTimer2 = 0;
}
}
if (autoTimer3 == 1)
{
if ((millis() - lastAutoTimer3) > autoTimerDelay3)
{
R3Flag = 1;
RELAY3ON;
Relay3State = "on";
autoTimer3 = 0;
}
}
if (autoTimer4 == 1)
{
if ((millis() - lastAutoTimer4) > autoTimerDelay4)
{
R4Flag = 1;
RELAY4ON;
Relay4State = "on";
autoTimer4 = 0;
}
}
// checking wifi strength
if ((millis() - lastTime1) > timerDelay1)
{
showTime();
showWifiSignal(); // at (112,0), wifi sampling once in 900 m.seconds
relayStatusPrinter();
if (OLEDConfig == 0) // Automatic/Manual Control of OLED Display
{
if (OLEDStatus == 0)
{
display.clearDisplay();
display.display();
}
else
display.display();
}
else if (OLEDConfig == 1)
{
byte currTime = Clock.getHour(h12Flag, pmFlag); // stores current hour temporarily
if (OLED_OFF > OLED_ON)
{
if ((currTime >= OLED_ON) && (currTime <= OLED_OFF))
display.display();
else
{
display.clearDisplay();
display.display();
}
}
else
{
if (((currTime >= OLED_ON) && (currTime >= OLED_OFF)) || ((currTime <= OLED_ON) && (currTime <= OLED_OFF))) // oled display turn of at night
display.display();
else
{
display.clearDisplay();
display.display();
}
}
}
lastTime1 = millis();
}
}
/**
* @brief Displays WiFi signal strength icon on OLED
*/
void showWifiSignal()
{
int x = WiFi.RSSI();
if (WiFi.status() != WL_CONNECTED)
{
display.setCursor(112, 0);
// display.setTextSize(2);
display.println(F("!"));
}
else
{
if (x <= (-80))
{
display.drawBitmap(112, 0, wifiLow, 16, 16, WHITE); // worst signal
}
else if ((x <= (-70)) && (x > (-80)))
{
display.drawBitmap(112, 0, wifiHalf, 16, 16, WHITE); // poor signal
}
else if ((x <= (-60)) && (x > (-70))) // good signal
{
display.drawBitmap(112, 0, wifiMed, 16, 16, WHITE); // best signal
}
else if (x > (-60))
{
display.drawBitmap(112, 0, wifiFull, 16, 16, WHITE); // excellent signal
}
}
}
/**
* @brief Displays current time and date on OLED
*/
void showTime()
{
display.setTextSize(2);
display.setTextColor(WHITE);
display.setCursor(0, 0);
if (Clock.getHour(h12Flag, pmFlag) < 10)
display.print(0, DEC);
display.print(Clock.getHour(h12Flag, pmFlag)); // Time
display.print(":");
if (Clock.getMinute() < 10)
display.print(0, DEC);
display.print(Clock.getMinute());
// display.print(":");
// if (Clock.getSecond() < 10)
// display.print(0, DEC);
// display.println(Clock.getSecond());
display.println(" ");
display.setTextSize(1);
display.print(week[Clock.getDoW()]);
display.print(", ");
display.print(Clock.getDate());
display.print("-");
display.print(Clock.getMonth(century));
display.print("-20");
display.println(Clock.getYear());
display.setCursor(90, 25);
display.print(Clock.getTemperature(), 1);
display.println(" C");
if (Clock.getYear() == 70)
updateRTC();
}
/**
* @brief Updates RTC time from NTP server
*/
void updateRTC()
{
display.clearDisplay();
display.setCursor(30, 25); // Start at top-left corner
display.setTextSize(1); // Normal 1:1 pixel scale
display.setTextColor(WHITE); // Draw white text
display.println(F("Updating Time"));
display.display();
delay(2000);
timeClient.update();
time_t rawtime = timeClient.getEpochTime();
struct tm *ti;
ti = localtime(&rawtime);
uint16_t year = ti->tm_year + 1900;
uint8_t x = year % 10;
year = year / 10;
uint8_t y = year % 10;
year = y * 10 + x;
uint8_t month = ti->tm_mon + 1;
uint8_t day = ti->tm_mday;
uint8_t hours = ti->tm_hour;
uint8_t minutes = ti->tm_min;
uint8_t seconds = ti->tm_sec;
uint8_t dow = ti->tm_wday;
Clock.setClockMode(false); // set to 24h
// setClockMode(true); // set to 12h
Clock.setYear(year);
Clock.setMonth(month);
Clock.setDate(day);
Clock.setDoW(dow);
Clock.setHour(hours);
Clock.setMinute(minutes);
Clock.setSecond(seconds);
}
/**
* @brief Checks time conditions for relay operation
* @param onTime Time to turn relay on (in 24hr format, e.g. 1435 for 2:35 PM)
* @param offTime Time to turn relay off (in 24hr format)
* @param number Relay number (1-4) to control
*/
void checkTimeFor(int onTime, int offTime, int number)
{
int h = Clock.getHour(h12Flag, pmFlag);
int m = Clock.getMinute();
int timeString = h * 100 + m; // if h=12 and m=23 then 12*100 + 23 = 1223 hours
if (offTime > onTime) // when off timing is greater than on timing
{
if ((timeString > onTime) && (timeString < offTime))
{
if (number == 1)
{
R1Flag = 1;
RELAY1ON;
Relay1State = "on";
autoTimer1 = 0;
}
else if (number == 2)
{
R2Flag = 1;
RELAY2ON;
Relay2State = "on";
autoTimer2 = 0;
}
else if (number == 3)
{
R3Flag = 1;
RELAY3ON;
Relay3State = "on";
autoTimer3 = 0;
}
else if (number == 4)
{
R4Flag = 1;
RELAY4ON;
Relay4State = "on";
autoTimer4 = 0;
}
}
else
{
if (number == 1)
{
R1Flag = 0;
RELAY1OFF;
Relay1State = "off";
}
else if (number == 2)
{
R2Flag = 0;
RELAY2OFF;
Relay2State = "off";
}
else if (number == 3)
{
R3Flag = 0;
RELAY3OFF;
Relay3State = "off";
}
else if (number == 4)
{
R4Flag = 0;
RELAY4OFF;
Relay4State = "off";
}
}
}
else
{
if (((timeString > onTime) && (timeString > offTime)) || ((timeString < onTime) && (timeString < offTime)))
{
if (number == 1)
{
R1Flag = 1;
RELAY1ON;
Relay1State = "on";
}
else if (number == 2)
{
R2Flag = 1;
RELAY2ON;
Relay2State = "on";
}
else if (number == 3)
{
R3Flag = 1;
RELAY3ON;
Relay3State = "on";
}
else if (number == 4)
{
R4Flag = 1;
RELAY4ON;
Relay4State = "on";
}
}
else
{
if (number == 1)
{
R1Flag = 0;
RELAY1OFF;
Relay1State = "off";
}
else if (number == 2)
{
R2Flag = 0;
RELAY2OFF;
Relay2State = "off";
}
else if (number == 3)
{
R3Flag = 0;
RELAY3OFF;
Relay3State = "off";
}
else if (number == 4)
{
R4Flag = 0;
RELAY4OFF;
Relay4State = "off";
}
}
}
}
/**
* @brief Displays relay status indicators on OLED
*/
void relayStatusPrinter()
{
display.setTextSize(1);
display.setTextColor(WHITE);
if (R1Flag)