/
ESP32_4_Channel_Relay_v1.ino
672 lines (657 loc) · 35.4 KB
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ESP32_4_Channel_Relay_v1.ino
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/*
This software, the ideas and concepts is Copyright (c) David Bird 2021
All rights to this software are reserved.
It is prohibited to redistribute or reproduce of any part or all of the software contents in any form other than the following:
1. You may print or download to a local hard disk extracts for your personal and non-commercial use only.
2. You may copy the content to individual third parties for their personal use, but only if you acknowledge the author David Bird as the source of the material.
3. You may not, except with my express written permission, distribute or commercially exploit the content.
4. You may not transmit it or store it in any other website or other form of electronic retrieval system for commercial purposes.
5. You MUST include all of this copyright and permission notice ('as annotated') and this shall be included in all copies or substantial portions of the software
and where the software use is visible to an end-user.
THE SOFTWARE IS PROVIDED "AS IS" FOR PRIVATE USE ONLY, IT IS NOT FOR COMMERCIAL USE IN WHOLE OR PART OR CONCEPT.
FOR PERSONAL USE IT IS SUPPLIED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR
A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHOR OR COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OR
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
See more at http://dsbird.org.uk
*/
//################# LIBRARIES ################
#include <WiFi.h> // Built-in
#include <ESPmDNS.h> // Built-in
#include <SPIFFS.h> // Built-in
#include "ESPAsyncWebServer.h" // Built-in
#include "AsyncTCP.h" // https://github.com/me-no-dev/AsyncTCP
//################ VERSION ###########################################
String version = "1.0"; // Programme version, see change log at end
//################ VARIABLES ###########################################
const char* ServerName = "Controller"; // Connect to the server with http://controller.local/ e.g. if name = "myserver" use http://myserver.local/
#define Channels 4 // n-Channels
#define NumOfEvents 4 // Number of events per-day, 4 is a practical limit
#define noRefresh false // Set auto refresh OFF
#define Refresh true // Set auto refresh ON
#define ON true // Set the Relay ON
#define OFF false // Set the Relay OFF
#define Channel1 0 // Define Channel-1
#define Channel2 1 // Define Channel-2
#define Channel3 2 // Define Channel-3
#define Channel4 3 // Define Channel-4
// Now define the GPIO pins to be used for relay control
#define Channel1_Pin 0 // Define the Relay Control pin
#define Channel2_Pin 2 // Define the Relay Control pin
#define Channel3_Pin 13 // Define the Relay Control pin
#define Channel4_Pin 14 // Define the Relay Control pin
#define LEDPIN 5 // Define the LED Control pin
#define ChannelReverse false // Set to true for Relay that requires a signal HIGH for ON, usually relays need a LOW to actuate
struct settings {
String DoW; // Day of Week for the programmed event
String Start[NumOfEvents]; // Start time
String Stop[NumOfEvents]; // End time
};
String DataFile = "params.txt"; // Storage file name on flash
String Time_str, DoW_str; // For Date and Time
settings Timer[Channels][7]; // Timer settings, n-Channels each 7-days of the week
//################ VARIABLES ################
const char* ssid = "yourSSID"; // WiFi SSID replace with details for your local network
const char* password = "yourPASSWORD"; // WiFi Password replace with details for your local network
const char* Timezone = "GMT0BST,M3.5.0/01,M10.5.0/02";
// Example time zones
//const char* Timezone = "MET-1METDST,M3.5.0/01,M10.5.0/02"; // Most of Europe
//const char* Timezone = "CET-1CEST,M3.5.0,M10.5.0/3"; // Central Europe
//const char* Timezone = "EST-2METDST,M3.5.0/01,M10.5.0/02"; // Most of Europe
//const char* Timezone = "EST5EDT,M3.2.0,M11.1.0"; // EST USA
//const char* Timezone = "CST6CDT,M3.2.0,M11.1.0"; // CST USA
//const char* Timezone = "MST7MDT,M4.1.0,M10.5.0"; // MST USA
//const char* Timezone = "NZST-12NZDT,M9.5.0,M4.1.0/3"; // Auckland
//const char* Timezone = "EET-2EEST,M3.5.5/0,M10.5.5/0"; // Asia
//const char* Timezone = "ACST-9:30ACDT,M10.1.0,M4.1.0/3": // Australia
// System values
String sitetitle = "4-Channel Relay Controller";
String Year = "2021"; // For the footer line
bool ManualOverride = false; // Manual override
String Units = "M"; // or Units = "I" for °F and 12:12pm time format
String webpage = ""; // General purpose variables to hold HTML code for display
int TimerCheckDuration = 1000; // Check for timer event every 1-second
int wifi_signal = 0; // WiFi signal strength
int LastTimerSwitchCheck = 0; // Counter for last timer check
int UnixTime = 0; // Time now (when updated) of the current time
String Channel1_State = "OFF"; // Status of the channel
String Channel2_State = "OFF"; // Status of the channel
String Channel3_State = "OFF"; // Status of the channel
String Channel4_State = "OFF"; // Status of the channel
bool Channel1_Override = false;
bool Channel2_Override = false;
bool Channel3_Override = false;
bool Channel4_Override = false;
AsyncWebServer server(80); // Server on IP address port 80 (web-browser default, change to your requirements, e.g. 8080
// To access server from outside of a WiFi (LAN) network e.g. on port 8080 add a rule on your Router that forwards a connection request
// to http://your_WAN_address:8080/ to http://your_LAN_address:8080 and then you can view your ESP server from anywhere.
// Example http://yourhome.ip:8080 and your ESP Server is at 192.168.0.40, then the request will be directed to http://192.168.0.40:8080
//#########################################################################################
void setup() {
SetupSystem(); // General system setup
StartWiFi(); // Start WiFi services
SetupTime(); // Start NTP clock services
StartSPIFFS(); // Start SPIFFS filing system
Initialise_Array(); // Initialise the array for storage and set some values
RecoverSettings(); // Recover settings from LittleFS
SetupDeviceName(ServerName); // Set logical device name
// Set handler for '/'
server.on("/", HTTP_GET, [](AsyncWebServerRequest * request) {
request->redirect("/homepage"); // Go to home page
});
// Set handler for '/homepage'
server.on("/homepage", HTTP_GET, [](AsyncWebServerRequest * request) {
Homepage();
request->send(200, "text/html", webpage);
});
// Set handler for '/timer1'
server.on("/timer1", HTTP_GET, [](AsyncWebServerRequest * request) {
TimerSet(Channel1);
request->send(200, "text/html", webpage);
});
// Set handler for '/timer2'
server.on("/timer2", HTTP_GET, [](AsyncWebServerRequest * request) {
TimerSet(Channel2);
request->send(200, "text/html", webpage);
});
// Set handler for '/timer3'
server.on("/timer3", HTTP_GET, [](AsyncWebServerRequest * request) {
TimerSet(Channel3);
request->send(200, "text/html", webpage);
});
// Set handler for '/timer4'
server.on("/timer4", HTTP_GET, [](AsyncWebServerRequest * request) {
TimerSet(Channel4);
request->send(200, "text/html", webpage);
});
// Set handler for '/setup'
server.on("/setup", HTTP_GET, [](AsyncWebServerRequest * request) {
Setup();
request->send(200, "text/html", webpage);
});
// Set handler for '/help'
server.on("/help", HTTP_GET, [](AsyncWebServerRequest * request) {
Help();
request->send(200, "text/html", webpage);
});
// Set handler for '/handletimer0' inputs
server.on("/handletimer0", HTTP_GET, [](AsyncWebServerRequest * request) {
for (byte dow = 0; dow < 7; dow++) {
for (byte p = 0; p < 4; p++) {
Timer[0][dow].Start[p] = request->arg(String(dow) + "." + String(p) + ".Start");
Timer[0][dow].Stop[p] = request->arg(String(dow) + "." + String(p) + ".Stop");
}
}
SaveSettings();
request->redirect("/homepage"); // Go back to home page
});
// Set handler for '/handletimer1' inputs
server.on("/handletimer1", HTTP_GET, [](AsyncWebServerRequest * request) {
for (byte dow = 0; dow < 7; dow++) {
for (byte p = 0; p < 4; p++) {
Timer[1][dow].Start[p] = request->arg(String(dow) + "." + String(p) + ".Start");
Timer[1][dow].Stop[p] = request->arg(String(dow) + "." + String(p) + ".Stop");
}
}
SaveSettings();
request->redirect("/homepage"); // Go back to home page
});
// Set handler for '/handletimer2' inputs
server.on("/handletimer2", HTTP_GET, [](AsyncWebServerRequest * request) {
for (byte dow = 0; dow < 7; dow++) {
for (byte p = 0; p < 4; p++) {
Timer[2][dow].Start[p] = request->arg(String(dow) + "." + String(p) + ".Start");
Timer[2][dow].Stop[p] = request->arg(String(dow) + "." + String(p) + ".Stop");
}
}
SaveSettings();
request->redirect("/homepage"); // Go back to home page
});
// Set handler for '/handletimer3' inputs
server.on("/handletimer3", HTTP_GET, [](AsyncWebServerRequest * request) {
for (byte dow = 0; dow < 7; dow++) {
for (byte p = 0; p < 4; p++) {
Timer[3][dow].Start[p] = request->arg(String(dow) + "." + String(p) + ".Start");
Timer[3][dow].Stop[p] = request->arg(String(dow) + "." + String(p) + ".Stop");
}
}
SaveSettings();
request->redirect("/homepage"); // Go back to home page
});
// Set handler for '/handlesetup' inputs
server.on("/handlesetup", HTTP_GET, [](AsyncWebServerRequest * request) {
if (request->hasArg("manualoverride1")) {
String stringArg = request->arg("manualoverride1");
if (stringArg == "ON") Channel1_Override = true; else Channel1_Override = false;
}
if (request->hasArg("manualoverride2")) {
String stringArg = request->arg("manualoverride2");
if (stringArg == "ON") Channel2_Override = true; else Channel2_Override = false;
}
if (request->hasArg("manualoverride3")) {
String stringArg = request->arg("manualoverride3");
if (stringArg == "ON") Channel3_Override = true; else Channel3_Override = false;
}
if (request->hasArg("manualoverride4")) {
String stringArg = request->arg("manualoverride4");
if (stringArg == "ON") Channel4_Override = true; else Channel4_Override = false;
}
SaveSettings();
request->redirect("/homepage"); // Go back to home page
});
server.begin();
LastTimerSwitchCheck = millis() + TimerCheckDuration; // preload timer value with update duration
}
//#########################################################################################
void loop() {
if (millis() > LastTimerSwitchCheck) {
LastTimerSwitchCheck = millis() + TimerCheckDuration; // Check at time-out for a change
UpdateLocalTime(); // Updates Time UnixTime to 'now'
CheckTimerEvent(); // Check for schedule actuated
}
}
//#########################################################################################
void Homepage() {
bool TimerSummary[4][7][48]; // 7 days each with 48 timer periods
append_HTML_header(Refresh);
webpage += "<h2>Channel Status</h2><br>";
webpage += "<table class='centre'>";
webpage += "<tr>";
webpage += " <td>Channel-1</td>";
webpage += " <td>Channel-2</td>";
webpage += " <td>Channel-3</td>";
webpage += " <td>Channel-4</td>";
webpage += "</tr>";
webpage += "<tr>";
webpage += " <td><div class='c1 Circle'><a class='" + String((Channel1_State == "ON" ? "on'" : "off'")) + " href='/timer1'>" + String(Channel1_State) + "</a></div></td>";
webpage += " <td><div class='c2 Circle'><a class='" + String((Channel2_State == "ON" ? "on'" : "off'")) + " href='/timer2'>" + String(Channel2_State) + "</a></div></td>";
webpage += " <td><div class='c3 Circle'><a class='" + String((Channel3_State == "ON" ? "on'" : "off'")) + " href='/timer3'>" + String(Channel3_State) + "</a></div></td>";
webpage += " <td><div class='c4 Circle'><a class='" + String((Channel4_State == "ON" ? "on'" : "off'")) + " href='/timer4'>" + String(Channel4_State) + "</a></div></td>";
webpage += "</tr>";
webpage += "</table>";
webpage += "<br>";
webpage += "<h3>Summary of Channel Schedules</h3>";
webpage += "<table class='centre sum'>";
webpage += "<tr>";
webpage += "<td>Time</td>";
webpage += "<td colspan='4'>" + Timer[0][0].DoW + "</td>";
for (byte dow = 1; dow < 6; dow++) webpage += "<td colspan='4'>" + Timer[0][dow].DoW + "</td>";
webpage += "<td colspan='4'>" + Timer[0][6].DoW + "</td>";
webpage += "</tr>";
String TimeNow_Str;
for (byte channel = 0; channel < Channels; channel++) {
for (byte DoW = 0; DoW < 7; DoW++) {
for (byte timer = 0; timer < 48; timer++) { // 0 to 24 hours in mins, reported in 15-min increments hence 60 / (2) = 30
TimeNow_Str = String((timer / 2 < 10 ? "0" : "")) + String(timer / 2) + ":" + String(((timer % 2) * 30) < 10 ? "0" : "") + String((timer % 2) * 30);
TimerSummary[channel][DoW][timer] = CheckTime(channel, String(DoW), TimeNow_Str);
}
}
}
for (byte timer = 0; timer < 48; timer++) { // 0 to 24 hours in mins, reported in 30-min increments hence 60 / (2) = 30
webpage += "<tr>";
webpage += "<td>" + String((timer / 2 < 10 ? "0" : "")) + String(timer / 2) + ":" + String(((timer % 2) * 30) < 10 ? "0" : "") + String((timer % 2) * 30) + "</td>"; // 4 x 15-min intervals per hour
for (byte DoW = 0; DoW < 7; DoW++) {
webpage += "<td class='" + String(TimerSummary[0][DoW][timer] ? "c1on" : "coff") + "'></td>";
webpage += "<td class='" + String(TimerSummary[1][DoW][timer] ? "c2on" : "coff") + "'></td>";
webpage += "<td class='" + String(TimerSummary[2][DoW][timer] ? "c3on" : "coff") + "'></td>";
webpage += "<td class='" + String(TimerSummary[3][DoW][timer] ? "c4on" : "coff") + "'></td>";
}
webpage += "</tr>";
}
webpage += "</table>";
webpage += "<br>";
append_HTML_footer();
}
//#########################################################################################
bool CheckTime(byte channel, String DoW_Str, String TimeNow_Str) {
for (byte dow = 0; dow < 7; dow++) { // Look for any valid timer events, if found turn the heating on
for (byte p = 0; p < NumOfEvents; p++) {
// Now check for a scheduled ON time, if so Switch the Timer ON and check the temperature against target temperature
if (String(dow) == DoW_Str && (TimeNow_Str >= Timer[channel][dow].Start[p] && TimeNow_Str < Timer[channel][dow].Stop[p] && Timer[channel][dow].Start[p] != ""))
return true;
}
}
return false;
}
//#########################################################################################
void TimerSet(int channel) {
append_HTML_header(noRefresh);
webpage += "<h2>Channel-" + String(channel + 1) + " Schedule Setup</h2><br>";
webpage += "<h3>Enter required time, use Clock symbol for ease of time entry</h3><br>";
webpage += "<FORM action='/handletimer" + String(channel) + "'>";
webpage += "<table class='centre timer'>";
webpage += "<col><col><col><col><col><col><col><col>";
webpage += "<tr><td>Control</td>";
webpage += "<td>" + Timer[channel][0].DoW + "</td>";
for (byte dow = 1; dow < 6; dow++) { // Heading line showing DoW
webpage += "<td>" + Timer[channel][dow].DoW + "</td>";
}
webpage += "<td>" + Timer[channel][6].DoW + "</td>";
webpage += "</tr>";
for (byte p = 0; p < NumOfEvents; p++) {
webpage += "<tr>";
webpage += "<td>Start</td>";
webpage += "<td><input type='time' name='" + String(0) + "." + String(p) + ".Start' value='" + Timer[channel][0].Start[p] + "'></td>";
for (int dow = 1; dow < 6; dow++) {
webpage += "<td><input type='time' name='" + String(dow) + "." + String(p) + ".Start' value='" + Timer[channel][dow].Start[p] + "'></td>";
}
webpage += "<td><input type='time' name='" + String(6) + "." + String(p) + ".Start' value='" + Timer[channel][6].Start[p] + "'></td>";
webpage += "</tr>";
webpage += "<tr><td>Stop</td>";
webpage += "<td><input type='time' name='" + String(0) + "." + String(p) + ".Stop' value='" + Timer[channel][0].Stop[p] + "'></td>";
for (int dow = 1; dow < 6; dow++) {
webpage += "<td><input type='time' name='" + String(dow) + "." + String(p) + ".Stop' value='" + Timer[channel][dow].Stop[p] + "'></td>";
}
webpage += "<td><input type='time' name='" + String(6) + "." + String(p) + ".Stop' value='" + Timer[channel][6].Stop[p] + "'></td>";
webpage += "</tr>";
if (p < (NumOfEvents - 1)) {
webpage += "<tr><td></td><td></td>";
for (int dow = 2; dow < 7; dow++) {
webpage += "<td>-</td>";
}
webpage += "<td></td>";
webpage += "</tr>";
}
}
webpage += "</table>";
webpage += "<div class='centre'>";
webpage += "<br><input type='submit' value='Enter'><br><br>";
webpage += "</div></form>";
append_HTML_footer();
}
//#########################################################################################
void Setup() {
append_HTML_header(noRefresh);
webpage += "<h2>Channel Setup</h2><br>";
webpage += "<h3>Enter required values</h3>";
webpage += "<FORM action='/handlesetup'>";
webpage += "<table class='centre'>";
webpage += "<tr>";
webpage += "<td>Setting</td><td>Value</td>";
webpage += "</tr>";
webpage += "<tr>";
webpage += "<td><label>Channel-1 Manual Override </label></td>";
webpage += "<td><select name='manualoverride1'><option value='ON'>ON</option>";
webpage += "<option selected value='OFF'>OFF</option></select></td>"; // ON/OFF
webpage += "</tr>";
webpage += "<tr>";
webpage += "<td><label>Channel-2 Manual Override </label></td>";
webpage += "<td><select name='manualoverride2'><option value='ON'>ON</option>";
webpage += "<option selected value='OFF'>OFF</option></select></td>"; // ON/OFF
webpage += "</tr>";
webpage += "<tr>";
webpage += "<td><label>Channel-3 Manual Override </label></td>";
webpage += "<td><select name='manualoverride3'><option value='ON'>ON</option>";
webpage += "<option selected value='OFF'>OFF</option></select></td>"; // ON/OFF
webpage += "</tr>";
webpage += "<tr>";
webpage += "<td><label>Channel-4 Manual Override </label></td>";
webpage += "<td><select name='manualoverride4'><option value='ON'>ON</option>";
webpage += "<option selected value='OFF'>OFF</option></select></td>"; // ON/OFF
webpage += "</tr>";
webpage += "</table>";
webpage += "<br><input type='submit' value='Enter'><br><br>";
webpage += "</form>";
append_HTML_footer();
}
//#########################################################################################
void Help() {
append_HTML_header(noRefresh);
webpage += "<h2>Help</h2><br>";
webpage += "<div style='text-align: left;font-size:1.1em;'>";
webpage += "<br><u><b>Status Page</b></u>";
webpage += "<p>Provides a channel overview showing either On or OFF for each channel, READ for ON and GREEN for OFF.</p>";
webpage += "<p>Each position has a link to the Channel's timer settings, so clicking on Channel-2 'ON' or 'OFF' goes to the channel's timer settings page.</p>";
webpage += "<p>The weekly summary shows 4-channels per day, from 00:00 to 23:30 using the channel's colour to indicate if it is scheduled to be ON.</p>";
webpage += "<p>NOTE: the minimum time period that can be displayed is 30-minutes. e.g. 12:05 to 12:20 won't be displayed, but 12:00 to 12:20 will be.</p>";
webpage += "<p>This is becuase the minimum resolution is 30-mins for the summary, this does not affect the timing accuracy.</p>";
webpage += "<br><u><b>Channel Setting 1 to 4</b></u>";
webpage += "<p>Each channel can be set for 7-days per week with up-to 4-periods per day.</p>";
webpage += "<p>You can either use a single slot to switch the channel ON between e.g. 09:00 and 13:00</p>";
webpage += "<p>or you could set period-1 from 09:00 to 10:00; period-2 from 10:00 to 11:00; period-3 from 11:00 to 12:00 and period-4 from 12:00 to 13:00</p>";
webpage += "<u><b>Setup Page</b></u>";
webpage += "<p>Enables a channel(s) to be overridden to ON, but only until a valid schedule period comes into effect.</p>";
webpage += "<p>The manual-override is cleared when a valid timer period begins.</p>";
webpage += "</div>";
append_HTML_footer();
}
//#########################################################################################
void CheckTimerEvent() {
String TimeNow;
TimeNow = ConvertUnixTime(UnixTime); // Get the current time e.g. 15:35
Channel1_State = "OFF"; // Switch Channel OFF until the schedule decides otherwise
Channel2_State = "OFF"; // Switch Channel OFF until the schedule decides otherwise
Channel3_State = "OFF"; // Switch Channel OFF until the schedule decides otherwise
Channel4_State = "OFF"; // Switch Channel OFF until the schedule decides otherwise
if (Channel1_Override) { // If manual override is requested then turn the Channel on
Channel1_State = "ON";
ActuateChannel(ON, Channel1, Channel1_Pin); // Switch Channel ON if requested
}
if (Channel2_Override) {
Channel2_State = "ON";
ActuateChannel(ON, Channel2, Channel2_Pin); // Switch Channel ON if requested
}
if (Channel3_Override) {
Channel3_State = "ON";
ActuateChannel(ON, Channel3, Channel3_Pin); // Switch Channel ON if requested
}
if (Channel4_Override) {
Channel4_State = "ON";
ActuateChannel(ON, Channel4, Channel4_Pin); // Switch Channel ON if requested
}
for (byte channel = 0; channel < Channels; channel++) {
for (byte dow = 0; dow < 7; dow++) { // Look for any valid timer events, if found turn the heating on
for (byte p = 0; p < NumOfEvents; p++) {
// Now check for a scheduled ON time, if so Switch the Timer ON and check the temperature against target temperature
if (String(dow) == DoW_str && (TimeNow >= Timer[channel][dow].Start[p] && TimeNow < Timer[channel][dow].Stop[p] && Timer[channel][dow].Start[p] != ""))
{
if (channel == 0) Channel1_State = "ON";
if (channel == 1) Channel2_State = "ON";
if (channel == 2) Channel3_State = "ON";
if (channel == 3) Channel4_State = "ON";
}
}
}
}
if (Channel1_State == "ON") ActuateChannel(ON, Channel1, Channel1_Pin); else ActuateChannel(OFF, Channel1, Channel1_Pin);
if (Channel2_State == "ON") ActuateChannel(ON, Channel2, Channel2_Pin); else ActuateChannel(OFF, Channel2, Channel2_Pin);
if (Channel3_State == "ON") ActuateChannel(ON, Channel3, Channel3_Pin); else ActuateChannel(OFF, Channel3, Channel3_Pin);
if (Channel4_State == "ON") ActuateChannel(ON, Channel4, Channel4_Pin); else ActuateChannel(OFF, Channel4, Channel4_Pin);
}
//#########################################################################################
void ActuateChannel(bool demand, byte channel, byte channel_pin) {
if (demand) {
if (ChannelReverse) digitalWrite(channel_pin, HIGH); else digitalWrite(channel_pin, LOW);
Serial.println("Putting Channel-" + String(channel) + " ON");
}
else
{
if (ChannelReverse) digitalWrite(channel_pin, LOW); else digitalWrite(channel_pin, HIGH);
Serial.println("Putting Channel-" + String(channel) + " OFF");
}
if (Channel1_State == "ON" || // Switch ON LED if any channel is ON otherwise switch ot OFF
Channel2_State == "ON" ||
Channel3_State == "ON" ||
Channel4_State == "ON") digitalWrite(LEDPIN, LOW); else digitalWrite(LEDPIN, HIGH);
}
//#########################################################################################
void append_HTML_header(bool refreshMode) {
webpage = "<!DOCTYPE html><html lang='en'>";
webpage += "<head>";
webpage += "<title>" + sitetitle + "</title>";
webpage += "<meta charset='UTF-8'>";
if (refreshMode) webpage += "<meta http-equiv='refresh' content='5'>"; // 5-secs refresh time, test needed to prevent auto updates repeating some commands
webpage += "<script src=\"https://code.jquery.com/jquery-3.2.1.min.js\"></script>";
webpage += "<style>";
webpage += "body {width:68em;margin-left:auto;margin-right:auto;font-family:Arial,Helvetica,sans-serif;font-size:14px;color:blue;background-color:#e1e1ff;text-align:center;}";
webpage += ".centre {margin-left:auto;margin-right:auto;}";
webpage += "h2 {margin-top:0.3em;margin-bottom:0.3em;font-size:1.4em;}";
webpage += "h3 {margin-top:0.3em;margin-bottom:0.3em;font-size:1.2em;}";
webpage += ".on {color:red;text-decoration:none;}";
webpage += ".off {color:limegreen;text-decoration:none;}";
webpage += ".topnav {overflow: hidden;background-color:lightcyan;}";
webpage += ".topnav a {float:left;color:blue;text-align:center;padding:1em 1.14em;text-decoration:none;font-size:1.3em;}";
webpage += ".topnav a:hover {background-color:deepskyblue;color:white;}";
webpage += ".topnav a.active {background-color:lightblue;color:blue;}";
webpage += "table.timer tr {padding:0.2em 0.5em 0.2em 0.5em;font-size:1.1em;}";
webpage += "table.timer td {padding:0.2em 0.5em 0.2em 0.5em;font-size:1.1em;}";
webpage += "table.sum tr {padding:0.2em 0.5em 0.2em 0.5em;font-size:1.1em;border:1px solid blue;}";
webpage += "table.sum td {padding:0.2em 0.6em 0.2em 0.6em;font-size:1.1em;border:1px solid blue;}";
webpage += "col:first-child {background:lightcyan}col:nth-child(2){background:#CCC}col:nth-child(8){background:#CCC}";
webpage += "tr:first-child {background:lightcyan}";
webpage += ".medium {font-size:1.4em;padding:0;margin:0}";
webpage += ".ps {font-size:0.7em;padding:0;margin:0}";
webpage += "footer {padding:0.08em;background-color:cyan;font-size:1.1em;}";
webpage += ".Circle {border-radius:50%;width:2.7em;height:2.7em;padding:0.2em;text-align:center;font-size:3em;display:inline-flex;justify-content:center;align-items:center;}";
webpage += ".c1 {border:0.15em solid yellow;background-color:lightgray;}";
webpage += ".c2 {border:0.15em solid orange;background-color:lightgray;}";
webpage += ".c3 {border:0.15em solid red;background-color:lightgray;}";
webpage += ".c4 {border:0.15em solid pink;background-color:lightgray;}";
webpage += ".coff {background-color:gainsboro;}";
webpage += ".c1on {background-color:yellow;}";
webpage += ".c2on {background-color:orange;}";
webpage += ".c3on {background-color:red;}";
webpage += ".c4on {background-color:pink;}";
webpage += ".wifi {padding:3px;position:relative;top:1em;left:0.36em;}";
webpage += ".wifi, .wifi:before {display:inline-block;border:9px double transparent;border-top-color:currentColor;border-radius:50%;}";
webpage += ".wifi:before {content:'';width:0;height:0;}";
webpage += "</style></head>";
webpage += "<body>";
webpage += "<div class='topnav'>";
webpage += "<a href='/'>Status</a>";
webpage += "<a href='timer1'>Channel-1</a>";
webpage += "<a href='timer2'>Channel-2</a>";
webpage += "<a href='timer3'>Channel-3</a>";
webpage += "<a href='timer4'>Channel-4</a>";
webpage += "<a href='setup'>Setup</a>";
webpage += "<a href='help'>Help</a>";
webpage += "<a href=''></a>"; // Padding for header
webpage += "<a href=''></a>"; // Padding for header
webpage += "<div class='wifi'></div><span>" + WiFiSignal() + "</span>";
webpage += "</div><br>";
}
//#########################################################################################
void append_HTML_footer() {
webpage += "<footer>";
webpage += "<p class='medium'>4-Channel Controller</p>";
webpage += "<p class='ps'><i>Copyright © D L Bird " + String(Year) + " V" + version + "</i></p>";
webpage += "</footer>";
webpage += "</body></html>";
}
//#########################################################################################
void SetupDeviceName(const char *DeviceName) {
if (MDNS.begin(DeviceName)) { // The name that will identify your device on the network
Serial.println("mDNS responder started");
Serial.print("Device name: ");
Serial.println(DeviceName);
MDNS.addService("n8i-mlp", "tcp", 23); // Add service
}
else
Serial.println("Error setting up MDNS responder");
}
//#########################################################################################
void StartWiFi() {
Serial.print("\r\nConnecting to: "); Serial.println(String(ssid));
IPAddress dns(8, 8, 8, 8); // Use Google as DNS
WiFi.disconnect();
WiFi.mode(WIFI_STA); // switch off AP
WiFi.setAutoConnect(true);
WiFi.setAutoReconnect(true);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
Serial.print(".");
delay(50);
}
Serial.println("\nWiFi connected at: " + WiFi.localIP().toString());
}
//#########################################################################################
void SetupSystem() {
Serial.begin(115200); // Initialise serial communications
while (!Serial);
Serial.println(__FILE__);
Serial.println("Starting...");
pinMode(Channel1_Pin, OUTPUT);
pinMode(Channel2_Pin, OUTPUT);
pinMode(Channel3_Pin, OUTPUT);
pinMode(Channel4_Pin, OUTPUT);
pinMode(LEDPIN, OUTPUT);
}
//#########################################################################################
boolean SetupTime() {
configTime(0, 0, "time.nist.gov"); // (gmtOffset_sec, daylightOffset_sec, ntpServer)
setenv("TZ", Timezone, 1); // setenv()adds "TZ" variable to the environment, only used if set to 1, 0 means no change
tzset();
delay(200);
bool TimeStatus = UpdateLocalTime();
return TimeStatus;
}
//#########################################################################################
boolean UpdateLocalTime() {
struct tm timeinfo;
time_t now;
char time_output[30];
while (!getLocalTime(&timeinfo, 15000)) { // Wait for up to 15-sec for time to synchronise
return false;
}
time(&now);
UnixTime = now;
//See http://www.cplusplus.com/reference/ctime/strftime/
strftime(time_output, sizeof(time_output), "%H:%M", &timeinfo); // Creates: '14:05'
Time_str = time_output;
strftime(time_output, sizeof(time_output), "%w", &timeinfo); // Creates: '0' for Sun
DoW_str = time_output;
return true;
}
//#########################################################################################
String ConvertUnixTime(int unix_time) {
time_t tm = unix_time;
struct tm *now_tm = localtime(&tm);
char output[40];
strftime(output, sizeof(output), "%H:%M", now_tm); // Returns 21:12
return output;
}
//#########################################################################################
void StartSPIFFS() {
Serial.println("Starting SPIFFS");
boolean SPIFFS_Status;
SPIFFS_Status = SPIFFS.begin();
if (SPIFFS_Status == false)
{ // Most likely SPIFFS has not yet been formated, so do so
Serial.println("Formatting SPIFFS (it may take some time)...");
SPIFFS.begin(true); // Now format SPIFFS
File datafile = SPIFFS.open("/" + DataFile, "r");
if (!datafile || !datafile.isDirectory()) {
Serial.println("SPIFFS failed to start..."); // Nothing more can be done, so delete and then create another file
SPIFFS.remove("/" + DataFile); // The file is corrupted!!
datafile.close();
}
}
else Serial.println("SPIFFS Started successfully...");
}
//#########################################################################################
void Initialise_Array() {
for (int channel = 0; channel < Channels; channel++) {
Timer[channel][0].DoW = "Sun";
Timer[channel][1].DoW = "Mon";
Timer[channel][2].DoW = "Tue";
Timer[channel][3].DoW = "Wed";
Timer[channel][4].DoW = "Thu";
Timer[channel][5].DoW = "Fri";
Timer[channel][6].DoW = "Sat";
}
}
//#########################################################################################
void SaveSettings() {
Serial.println("Getting ready to Save settings...");
File dataFile = SPIFFS.open("/" + DataFile, "w");
if (dataFile) { // Save settings
Serial.println("Saving settings...");
for (byte channel = 0; channel < Channels; channel++) {
for (byte dow = 0; dow < 7; dow++) {
//Serial.println("Day of week = " + String(dow));
for (byte p = 0; p < NumOfEvents; p++) {
dataFile.println(Timer[channel][dow].Start[p]);
dataFile.println(Timer[channel][dow].Stop[p]);
//Serial.println("Period: " + String(p) + " from: " + Timer[channel][dow].Start[p] + " to: " + Timer[channel][dow].Stop[p]);
}
}
}
dataFile.close();
Serial.println("Settings saved...");
}
}
//#########################################################################################
void RecoverSettings() {
String Entry;
Serial.println("Reading settings...");
File dataFile = SPIFFS.open("/" + DataFile, "r");
if (dataFile) { // if the file is available, read it
Serial.println("Recovering settings...");
while (dataFile.available()) {
for (byte channel = 0; channel < Channels; channel++) {
//Serial.println("Channel-" + String(channel + 1));
for (byte dow = 0; dow < 7; dow++) {
//Serial.println("Day of week = " + String(dow));
for (byte p = 0; p < NumOfEvents; p++) {
Timer[channel][dow].Start[p] = dataFile.readStringUntil('\n'); Timer[channel][dow].Start[p].trim();
Timer[channel][dow].Stop[p] = dataFile.readStringUntil('\n'); Timer[channel][dow].Stop[p].trim();
//Serial.println("Period: " + String(p) + " from: " + Timer[channel][dow].Start[p] + " to: " + Timer[channel][dow].Stop[p]);
}
}
}
dataFile.close();
Serial.println("Settings recovered...");
}
}
}
//#########################################################################################
String WiFiSignal() {
float Signal = WiFi.RSSI();
Signal = 90 / 40.0 * Signal + 212.5; // From Signal = 100% @ -50dBm and Signal = 10% @ -90dBm and y = mx + c
if (Signal > 100) Signal = 100;
return " " + String(Signal, 0) + "%";
}
/*
Version 1.0 667 lines of code
All HTML fully validated by W3C
*/