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AdvancedWebServer.ino
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#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
#include <EEPROM.h>
#include <Ticker.h>
int redColorAddress = 0;
int greenColorAddress = 1;
int blueColorAddress = 2;
int effectSpeedAddress = 3;
int effectAddress = 8;
int loginAddress = 10;
int passwordAddress = 30;
byte red = 255;
byte green = 255;
byte blue = 255;
float effectSpeed = 0.01;
byte effect = 0;
byte upScalePercent = 100;
bool percentIsIncrease = false;
Ticker effectTrigger;
ESP8266WebServer server ( 80 );
//////////////////////////////////////////////////
// //
// Controllers //
// //
//////////////////////////////////////////////////
void handleIndex() {
String index = "<html><head><meta name='viewport' content='width=device-width, initial-scale=1'/><style>body{background-color:darkslategray}input#red[type=range]::-moz-range-track{background:linear-gradient(to right,#fff,#f00)}input#green[type=range]::-moz-range-track{background:linear-gradient(to right,#fff,#0f0)}input#blue[type=range]::-moz-range-track{background:linear-gradient(to right,#fff,#00f)}input#red[type=range]::-webkit-slider-runnable-track{background:linear-gradient(to right,#fff,#f00)}input#green[type=range]::-webkit-slider-runnable-track{background:linear-gradient(to right,#fff,#0f0)}input#blue[type=range]::-webkit-slider-runnable-track{background:linear-gradient(to right,#fff,#00f)}input[type=range]{-webkit-appearance:none;width:100%;display:block;margin:18px auto}input[type=range]:focus{outline:0}input[type=range]::-webkit-slider-runnable-track{width:100%;height:8px;cursor:pointer;animate:.2s;box-shadow:1px 1px 1px #000,0 0 1px #0d0d0d;border-radius:1px;border:0 solid #010101}input[type=range]::-webkit-slider-thumb{box-shadow:1px 1px 1px #000,0 0 1px #0d0d0d;border:1px solid #000;height:36px;width:16px;border-radius:3px;background:#fff;cursor:pointer;-webkit-appearance:none;margin-top:-14px}input[type=range]::-moz-range-track{width:100%;height:8px;cursor:pointer;animate:.2s;box-shadow:1px 1px 1px #000,0 0 1px #0d0d0d;border-radius:1px;border:0 solid #010101}input[type=range]::-moz-range-thumb{box-shadow:1px 1px 1px #000,0 0 1px #0d0d0d;border:1px solid #000;height:36px;width:16px;border-radius:3px;background:#fff;cursor:pointer}input[type=range]::-ms-track{width:100%;height:8px;cursor:pointer;animate:.2s;background:transparent;border-color:transparent;border-width:16px 0;color:transparent}input[type=range]::-ms-fill-lower{border:0 solid #010101;border-radius:3px;box-shadow:1px 1px 1px #000,0 0 1px #0d0d0d}input[type=range]::-ms-fill-upper{border:0 solid #010101;border-radius:3px;box-shadow:1px 1px 1px #000,0 0 1px #0d0d0d}input[type=range]::-ms-thumb{box-shadow:1px 1px 1px #000,0 0 1px #0d0d0d;border:1px solid #000;height:36px;width:16px;border-radius:3px;cursor:pointer}button{background-color:#4caf50;border:0;color:white;padding:20px;text-align:center;text-decoration:none;display:inline-block;font-size:16px;margin:4px 2px;cursor:pointer;border-radius:12px;width:100%;opacity:1}button:active{opacity:.5}</style></head><body><div><input id='red' type='range' onchange='changeColor()' min='0' max='255'/><br/><input id='green' type='range' onchange='changeColor()' min='0' max='255'/><br/><input id='blue' type='range' onchange='changeColor()' min='0' max='255'/><br/><br/><input id='speed' type='range' onchange='changeSpeed()' min='1' max='300'/><br/><button id='noEffect' onclick='changeEffect(0)'>No effect</button><button id='gradient' onclick='changeEffect(1)'>Gradient</button><button id='upScale' onclick='changeEffect(2)'>Breath</button></div></body><script>function changeColor(){var e=document.getElementById('red'),t=document.getElementById('green'),n=document.getElementById('blue');if(e&&t&&n){var a=Array.from(document.getElementsByTagName('button')),r='rgb('+parseInt(e.value)+', '+parseInt(t.value)+', '+parseInt(n.value)+')';a.forEach(function(e){e.style.backgroundColor=r});var u=new XMLHttpRequest;u.open('GET','setColor?red='+e.value+'&green='+t.value+'&blue='+n.value,!0),u.send()}}function getColor(){var r=new XMLHttpRequest;r.onreadystatechange=function(){if(4===r.readyState&&200===r.status){var e=JSON.parse(r.responseText);if(!e)return;var t=document.getElementById('red'),n=document.getElementById('green'),a=document.getElementById('blue');if(!t||!n||!a)return;t.value=e.red,n.value=e.green,a.value=e.blue}},r.open('GET','getColor',!0),r.send()}function changeSpeed(){var e=document.getElementById('speed');if(e){var t=new XMLHttpRequest;t.open('GET','setEffectSpeed?effectSpeed='+e.value/1e3,!0),t.send()}}function getSpeed(){var n=new XMLHttpRequest;n.onreadystatechange=function(){if(4===n.readyState&&200===n.status){var e=JSON.parse(n.responseText);if(!e)return;var t=document.getElementById('speed');if(!t)return;t.value=1e3*e.effectSpeed}},n.open('GET','getEffectSpeed',!0),n.send()}function changeEffect(e){switch(e){case 1:document.getElementById('speed').max=300;break;case 2:document.getElementById('speed').max=100}var t=new XMLHttpRequest;t.open('GET','/setEffect?effect='+e,!0),t.send()}getColor(),getSpeed();</script></html>";
sendDataByPart(index);
}
void handleNotFound() {
String message = "File Not Found\n\n";
message += "URI: ";
message += server.uri();
message += "\nMethod: ";
message += ( server.method() == HTTP_GET ) ? "GET" : "POST";
message += "\nArguments: ";
message += server.args();
message += "\n";
for ( uint8_t i = 0; i < server.args(); i++ ) {
message += " " + server.argName ( i ) + ": " + server.arg ( i ) + "\n";
}
server.send ( 404, "text/plain", message );
}
void setColor(){
red = server.arg("red").toInt();
green = server.arg("green").toInt();
blue = server.arg("blue").toInt();
if(red >= 0 || red <= 255){
analogWrite(0, red * 4);
}
if(green >= 0 || green <= 255){
analogWrite(1, green * 4);
}
if(blue >= 0 || blue <= 255){
analogWrite(2, blue * 4);
}
EEPROM.write(redColorAddress, red);
EEPROM.write(greenColorAddress, green);
EEPROM.write(blueColorAddress, blue);
EEPROM.commit();
server.send(200, "text/plain", "");
}
void getColor(){
String response = String("{\"red\": ") + red + ", \"green\": " + green + ", \"blue\": " + blue + "}";
server.send(200, "application/json", response);
}
void setEffectSpeed(){
effectSpeed = server.arg("effectSpeed").toFloat();
implementEffect();
EEPROM.put(effectSpeedAddress, effectSpeed);
EEPROM.commit();
String response = String("{\"effectSpeed\": ") + String(effectSpeed, 5) + "}";
server.send(200, "application/json", response);
}
void getEffectSpeed(){
String response = String("{\"effectSpeed\": ") + String(effectSpeed, 5) + "}";
server.send(200, "application/json", response);
}
void setEffect(){
effect = server.arg("effect").toInt();
implementEffect();
String response = String("{\"effect\": ") + effect + "}";
server.send(200, "application/json", response);
}
void implementEffect(){
switch(effect){
//no effect
case 0:
effectTrigger.detach();
break;
//gradient
case 1:
red = 255;
green = 0;
blue = 0;
effectTrigger.detach();
effectTrigger.attach(effectSpeed, gradient);
EEPROM.write(effectAddress, effect);
EEPROM.commit();
break;
//upScale
case 2:
effectTrigger.detach();
effectTrigger.attach(effectSpeed, upScale);
EEPROM.write(effectAddress, effect);
EEPROM.commit();
break;
default:
server.send(404, "text/plain", "Effect not found");
break;
}
}
void getEffect(){
String response = String("{\"effect\": ") + effect + "}";
server.send(200, "application/json", response);
}
void signIn(){
String index = "<html><head><meta name='viewport' content='width=device-width, initial-scale=1'/><style>body{background-color:darkslategray}input[type=text],[type=password],select{width:100%;padding:12px 20px;margin:8px 0;display:inline-block;border:1px solid #ccc;border-radius:4px;box-sizing:border-box}button{background-color:#4caf50;border:0;color:white;padding:20px;text-align:center;text-decoration:none;display:inline-block;font-size:16px;margin:4px 2px;cursor:pointer;border-radius:12px;width:100%;opacity:1}button:active{opacity:.5}</style></head><body><div><input id='login' type='text' maxlength='20' minlength='1' onkeyup='checkLetters(login)'/><input id='password' type='password' maxlength='20' minlength='1' onkeyup='checkLetters(password)'/><button id='signIn' onclick='signIn()'>Sign In</button></div></body><script>function signIn(){var e=document.getElementById('login'),n=document.getElementById('password');if(e&&n){var t=new XMLHttpRequest;t.open('GET','setWifiCredentials?login='+e.value+'&password='+n.value,!0),t.send()}}function checkLetters(e){e.value=e.value.replace(/[^a-z 0-9]/i,'')}</script></html>";
sendDataByPart(index);
}
void setWifiCredentials(){
String login = server.arg("login");
String password = server.arg("password");
writeStringToEEPROM(loginAddress, login);
writeStringToEEPROM(passwordAddress, password);
server.send(200, "text/plain", "");
}
//////////////////////////////////////////////////
// //
// Other //
// //
//////////////////////////////////////////////////
void sendDataByPart(String data){
int contentSize = data.length();
int transferred = 0;
int packSize = 500;
server.setContentLength(contentSize);
server.send(200, "text/html", data.substring(transferred, transferred + packSize));
transferred = transferred + packSize < contentSize
? transferred + packSize
: contentSize;
do{
server.sendContent(data.substring(transferred, transferred + packSize));
transferred = transferred + packSize < contentSize
? transferred + packSize
: contentSize;
}while(transferred < contentSize);
}
void writeStringToEEPROM(int address, String data){
char buf[data.length() + 1];
data.toCharArray(buf, data.length() + 1);
for(int i = 0; i < data.length() + 1; i++){
EEPROM.write(address + i, buf[i]);
EEPROM.commit();
}
}
void readStringToEEPROM(int address, char *buf, int bufLength){
for(int i = 0; i < bufLength; i++){
buf[i] = EEPROM.read(address + i);
}
}
//////////////////////////////////////////////////
// //
// Effects //
// //
//////////////////////////////////////////////////
void gradient(){
// Растет зеленый
if(red == 255 && green < 255 && blue == 0){
green++;
}
else if(red > 0 && green == 255 && blue == 0){
red--;
}
else if(red == 0 && green == 255 && blue == 0){
blue = 1;
}
// Растет синий
else if(green == 255 && blue < 255 && red == 0){
blue++;
}
else if(green > 0 && blue == 255 && red == 0){
green--;
}
else if(green == 0 && blue == 255 && red == 0){
red = 1;
}
// Растет красный
else if(blue == 255 && red < 255 && green == 0){
red++;
}
else if(blue > 0 && red == 255 && green == 0){
blue--;
}
else if(blue == 0 && red == 255 && green == 0){
green = 1;
}
if(red >= 0 || red <= 255){
analogWrite(0, red * 4);
}
if(green >= 0 || green <= 255){
analogWrite(1, green * 4);
}
if(blue >= 0 || blue <= 255){
analogWrite(2, blue * 4);
}
}
void upScale(){
byte upScaleRed = red * upScalePercent / 100;
analogWrite(0, upScaleRed * 4);
byte upScaleGreen = green * upScalePercent / 100;
analogWrite(1, upScaleGreen * 4);
byte upScaleBlue = blue * upScalePercent / 100;
analogWrite(2, upScaleBlue * 4);
if(percentIsIncrease){
if(upScalePercent < 100){
upScalePercent++;
}
else{
percentIsIncrease = !percentIsIncrease;
upScalePercent--;
}
}
else{
if(upScalePercent > 0){
upScalePercent--;
}
else{
percentIsIncrease = !percentIsIncrease;
upScalePercent++;
}
}
}
//////////////////////////////////////////////////
// //
// Setup //
// //
//////////////////////////////////////////////////
void setupColor(){
red = EEPROM.read(redColorAddress);
green = EEPROM.read(greenColorAddress);
blue = EEPROM.read(blueColorAddress);
if(red >= 0 || red <= 255){
analogWrite(0, red * 4);
}
if(green >= 0 || green <= 255){
analogWrite(1, green * 4);
}
if(blue >= 0 || blue <= 255){
analogWrite(2, blue * 4);
}
}
void setupEffect(){
EEPROM.get(effectSpeedAddress, effectSpeed);
effect = EEPROM.read(effectAddress);
implementEffect();
}
void fastBlink(){
pinMode(LED_BUILTIN, OUTPUT);
for(int i = 0; i < 8; i++){
digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN));
delay(250);
}
}
void slowBlink(){
pinMode(LED_BUILTIN, OUTPUT);
for(int i = 0; i < 4; i++){
digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN));
delay(500);
}
}
void setup ( void ) {
EEPROM.begin(512);
int setupButton = digitalRead(3);
if(setupButton == HIGH){
fastBlink();
WiFi.softAPdisconnect(true);
WiFi.softAP("ESPap");
server.on ( "/", signIn);
server.on ( "/setWifiCredentials", setWifiCredentials);
server.onNotFound (handleNotFound);
server.begin();
}
else{
slowBlink();
char login[20];
readStringToEEPROM(loginAddress, login, 20);
char password[20];
readStringToEEPROM(passwordAddress, password, 20);
WiFi.begin( login, password );
while ( WiFi.status() != WL_CONNECTED ) {
delay ( 500 );
}
server.on ( "/", handleIndex);
server.on ( "/setColor", setColor);
server.on ( "/getColor", getColor);
server.on ( "/setEffect", setEffect);
server.on ( "/getEffect", getEffect);
server.on ( "/setEffectSpeed", setEffectSpeed);
server.on ( "/getEffectSpeed", getEffectSpeed);
server.onNotFound (handleNotFound);
server.begin();
// turn off softAP.
WiFi.softAPdisconnect(true);
}
//GPIO 1 (TX) swap the pin to a GPIO.
pinMode(1, FUNCTION_3);
//GPIO 3 (RX) swap the pin to a GPIO.
pinMode(3, FUNCTION_3);
pinMode(0, OUTPUT);
pinMode(1, OUTPUT);
pinMode(2, OUTPUT);
pinMode(3, INPUT);
setupColor();
setupEffect();
}
void loop ( void ) {
server.handleClient();
}