vulpes/src/main.cpp

/*********
  Rui Santos
  Complete project details at https://RandomNerdTutorials.com/esp32-esp8266-input-data-html-form/
  
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files.
  
  The above copyright notice and this permission notice shall be included in all
  copies or substantial portions of the Software.
*********/

// include wifi password
#include "config.h"
#include <Arduino.h>
#include <WiFi.h>
#include <AsyncTCP.h>
#include <SPIFFS.h>
#include <Preferences.h>
#include "morse.h"
#include <Adafruit_BusIO_Register.h> // for DS3231
#include <RTClib.h> // for DS3231
#include <string>

// download zip from https://github.com/me-no-dev/ESPAsyncWebServer and install.
#include <ESPAsyncWebServer.h>

AsyncWebServer server(80);

// Assign output variables to GPIO pins
//LED_BUILTIN for ESP32 onboard LED, 32 for transmitter keyer
const int keyer = 32;
const int blinker = LED_BUILTIN;

RTC_DS3231 rtc; // set up RTC
const int alarmPin = 4; // pin to monitor for RTC alarms

// Network options: "0" for existing netowrk, "1" to be an access point
const int network = 1;
// Connect to existing network
// Read from config.h
//const char* ssid = WIFI_SSID;
//const char* password = WIFI_PASSWORD;
// Create a new access point
// Replace with your desired network credentials
const char* ssid_ap     = "vulpes";
const char* password_ap = NULL; //"123456789"; //NULL is empty
IPAddress local_ip(192,168,0,1);
IPAddress gateway(192,168,0,1);
IPAddress subnet(255,255,255,0);

const char* PARAM_SEND = "inputSend";
const char* PARAM_WPM = "inputWPM";
const char* PARAM_MSG = "inputMsg";
const char* PARAM_CMSG = "inputCustomMsg";
const char* PARAM_FLOAT = "inputFloat";
const char* PARAM_TIME = "inputTimeUnix";
const char* PARAM_START = "inputStartTimeUnix";
const char* PARAM_RUNNING = "programRunning";
const char* PARAM_STEPLENGTH = "inputStepLength";
const char* PARAM_CYCLEID = "inputCycleID";
const char* PARAM_NTRANS = "inputNtransmitters";
const char* PARAM_NETWORK = "inputNetwork";
const char* PARAM_SSID = "inputSSID";
const char* PARAM_PASSWORD = "inputPassword";

// Global variables
int yourInputSend;
int yourInputWPM;
int yourInputMsg;
int yourInputMsg_old; // to save previous state and check changes
String yourInputCustomMsg;
float yourInputFloat;
uint32_t yourInputTime; //to keep time
uint32_t yourInputStartTimeUnix;
bool startProgram;
bool programRunning;
int yourInputStepLength;
int yourInputCycleID;
int yourInputNtransmitters;
int yourInputNetwork;
String yourInputSSID;
String yourInputPassword;
long start_millis = 0;
long stop_millis = 0;
long pause_until_millis = 0;

// HTML web page to handle input fields 
const char index_html[] PROGMEM = R"rawliteral(
<!DOCTYPE HTML><html><head>
  <link rel="icon" href="data:,">
  <title>ESP Input Form</title>
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <script type="text/javascript">
    // Utility from https://webreflection.medium.com/using-the-input-datetime-local-9503e7efdce
    Date.prototype.toDatetimeLocal = function toDatetimeLocal() {
    var
      date = this,
      ten = function (i) {
        return (i < 10 ? '0' : '') + i;
      },
      YYYY = date.getFullYear(),
      MM = ten(date.getMonth() + 1),
      DD = ten(date.getDate()),
      HH = ten(date.getHours()),
      II = ten(date.getMinutes()),
      SS = ten(date.getSeconds())
    ;
    return YYYY + '-' + MM + '-' + DD + 'T' +
             HH + ':' + II + ':' + SS;
    }

    // Submit timestamps as unix seconds when form is submitted
    var putDate = function(form) {
      form.inputTimeUnix.value = Math.floor(Date.now() / 1000);// - new Date().getTimezoneOffset()*60;
      form.inputStartTimeUnix.value = ((Date.parse(js_start_time_unix_entry.value))/1000);
      //document.getElementById("js_start_time_unix").value = ((Date.parse(js_start_time_unix_entry.value))/1000);
    }
    // Fill in page values
    window.onload = function() {
      s = %inputStartTimeUnix%;
      current_start = new Date(s * 1000);
      document.getElementById('current-start').innerHTML = current_start.toLocaleString();
      // Show the local time as a string
      local_time_unix = new Date().toLocaleString();//toUTCString();
      document.getElementById('local-time-unix').innerHTML = local_time_unix.toString();
      // Fill in the start time field as local time
      document.getElementById('js_start_time_unix_entry').value = current_start.toDatetimeLocal();

      // Fill in the other form fields
      document.getElementById("send-program").value = %inputSend%;
      document.getElementById("message").value = %inputMsg%;
      document.getElementById("network").value = %inputNetwork%;
    }

  </script></head><body>
  <h1>Vulpes Radio Orienteering Controller</h1>
  <p>Local time: <b><span id=local-time-unix></span></b>. If this is incorrect, your browser is not providing the correct time 
  (<a href="https://support.mozilla.org/en-US/questions/1297208">Firefox example</a>).</p>

  <form action="/get"  onsubmit="putDate(this);" accept-charset=utf-8>
    <h2>General Settings</h2>
    <p>Sending program:
    <select name="inputSend" id="send-program">
      <option value="0" >0 - Off</option>
      <option value="1">1 - Continuous</option>
      <option value="2">2 - Cycle</option>
    </select><br>

    Message:
    <select name="inputMsg" id="message">
      <option value="0">0 - Custom Message</option>
      <option value="1">1 - MOE</option>
      <option value="2">2 - MOI</option>
      <option value="3">3 - MOS</option>
      <option value="4">4 - MOH</option>
      <option value="5">5 - MO5</option>
    </select><br>

    Custom message: <input type="text" name="inputCustomMsg" value = "%inputCustomMsg%"><br>
    
    Speed: <input type="number" name="inputWPM" value = %inputWPM%> WPM
    </p>

    <h2>Cycle Settings</h2>
    <p>Only applies when <em>Sending Program</em> is set to "2 - Cycle". You cannot set a cycle start date more than a month in advance.</p>
    <p>Cycle start time <input type="datetime-local" id="js_start_time_unix_entry" /><br>
    Current value: <b><span id=current-start></span></b>
    
    <!-- JS converts the entered start time to a unix timestamp, and copies that value
    to this hidden field so the user doesn't have to see it. -->
    <input type="hidden" name="inputStartTimeUnix" id="js_start_time_unix" /></p>
    <p>
      Step length: <input type="number" name="inputStepLength" min=1000 step=1000 value = %inputStepLength%> milliseconds <br>
      Cycle ID: <input type="number" name="inputCycleID" min=1 value = %inputCycleID%><br>
      Number of transmitters: <input type="number" name="inputNtransmitters" min=1 value = %inputNtransmitters%><br>
    </p>
    
    <!-- This field is hidden so people don't change the submit time (it will be wrong).
    The value is automatically filled in with JS. -->
    <input type="hidden" name="inputTimeUnix" id="js_time_unix">

    <!-- Extra fields just in case I need them -->  
    <input type="hidden" name="inputFloat" value = %inputFloat%>

    <input type="submit" value="Submit"">
  </form>
  <iframe style="display:none" name="hidden-form" id="hidden-form"></iframe>

  <br><hr>
  <h2>Network Settings</h2>
  <form action="/get2" accept-charset=utf-8>
    <p>Network Access: 
    <select name="inputNetwork" id="network">
      <option value="0">Access Point</option>
      <option value="1">Existing Wireless Network (advanced)</option>
    </select><br>
    Existing Wireless Network SSID: <input type="text" name="inputSSID" value = "%inputSSID%"><br>
    Existing Wireless Network Password: <input type="password" name="inputPassword" value = "%inputPassword%"><br>
    </p><p>
    Access Point: Connect to wireless network "vulpes" and point your browser to URL <a href="http://192.168.0.1">http://192.168.0.1</a> (http, not http<b>s</b>)<br>
    Existing Network (advanced): Connect to the same existing network and use the proper IP address (useful if you have access to the router or a serial connection).
    </p>
  <input type="submit" value="Submit and Reboot">
  </form>

  <iframe style="display:none" name="hidden-form02" id="hidden-form02"></iframe>
  <script type="text/javascript">
    
  </script>
</body></html>)rawliteral";


void notFound(AsyncWebServerRequest *request) {
  request->send(404, "text/plain", "Not found");
}

String readFile(fs::FS &fs, const char * path){
  //Serial.printf("Reading file: %s\r\n", path);
  File file = fs.open(path, "r");
  if(!file || file.isDirectory()){
    Serial.println("- empty file or failed to open file");
    return String();
  }
  //Serial.println("- read from file:");
  String fileContent;
  while(file.available()){
    fileContent+=String((char)file.read());
  }
  file.close();
  //Serial.println(fileContent);
  return fileContent;
}

void writeFile(fs::FS &fs, const char * path, const char * message){
  Serial.printf("Writing file: %s\r\n", path);
  File file = fs.open(path, "w");
  if(!file){
    Serial.println("- failed to open file for writing");
    return;
  }
  if(file.print(message)){
    Serial.println("- file written");
  } else {
    Serial.println("- write failed");
  }
  file.close();
}

// Replaces placeholder in web UI with stored values
String processor(const String& var){
  //Serial.println(var);
  if(var == "inputCustomMsg"){
    return readFile(SPIFFS, "/inputCustomMsg.txt");
  }
  else if(var == "inputSend"){
    return readFile(SPIFFS, "/inputSend.txt");
  }
  else if(var == "inputWPM"){
    return readFile(SPIFFS, "/inputWPM.txt");
  }
  else if(var == "inputMsg"){
    return readFile(SPIFFS, "/inputMsg.txt");
  }
  else if(var == "inputStepLength"){
    return readFile(SPIFFS, "/inputStepLength.txt");
  }
  else if(var == "inputCycleID"){
    return readFile(SPIFFS, "/inputCycleID.txt");
  }
  else if(var == "inputNtransmitters"){
    return readFile(SPIFFS, "/inputNtransmitters.txt");
  }
  else if(var == "inputNetwork"){
    return readFile(SPIFFS, "/inputNetwork.txt");
  }
  else if(var == "inputSSID"){
    return readFile(SPIFFS, "/inputSSID.txt");
  }
  else if(var == "inputPassword"){
    return readFile(SPIFFS, "/inputPassword.txt");
  }
  else if(var == "inputFloat"){
    return readFile(SPIFFS, "/inputFloat.txt");
  } else if(var == "inputStartTimeUnix"){
    // Webform breaks if this value is empty.
    String temp = readFile(SPIFFS, "/inputStartTimeUnix.txt");
    if(temp == ""){
      temp = "0";
    }
    return temp;
  } 
  return String();
}

// https://www.thegeekpub.com/276838/how-to-reset-an-arduino-using-code/
void(* resetFunc) (void) = 0; // create a standard reset function

// Set up arduinomorse pin and default WPM
LEDMorseSender sender_blink(blinker, 10.0f); //f makes it a float
LEDMorseSender sender_key(keyer, 10.0f);

//================================================================================
// setup(): stuff that only gets done once, after power up (KB1OIQ's description)
//================================================================================
void setup() {
  Serial.begin(115200);

  // Get arduinomorse ready to go
  sender_blink.setup();
  sender_key.setup();

  pinMode(alarmPin, INPUT_PULLUP); // Set alarm pin as pullup

  if (! rtc.begin()) {
    Serial.println("Couldn't find RTC");
    Serial.flush();
    while (1) delay(10);
  }

  if (rtc.lostPower()) {
    Serial.println("RTC lost power, let's set the time!");
    // When time needs to be set on a new device, or after a power loss, the
    // following line sets the RTC to the date & time this sketch was compiled
    rtc.adjust(DateTime(__DATE__, __TIME__));
    // This line sets the RTC with an explicit date & time, for example to set
    // January 21, 2014 at 3am you would call:
    //rtc.adjust(DateTime(2023, 9, 2, 17, 32, 0));
  }

  // Report the RTC time after waiting two seconds
  // https://amiok.net/gitea/W1CDN/vulpes/issues/50#issuecomment-1376
  Serial.println("Wait 2s for RTC");
  delay(2000); 
  Serial.println("RTC time on startup: ");
  Serial.println(rtc.now().unixtime());
  Serial.println(rtc.now().timestamp());

  // Are there any RTC alarms set?
  DateTime alarm_one = rtc.getAlarm1(); // Get the current time
  char buff[] = "Alarm 1 set for at hh:mm:ss DDD, DD MMM YYYY";
  Serial.print(alarm_one.toString(buff));
  Serial.println(" (only HH:MM:SS day-of-month are accurate)");

  // Initialize the output variables as outputs
  pinMode(keyer, OUTPUT);
  pinMode(blinker, OUTPUT);
  // Set outputs to LOW
  digitalWrite(keyer, LOW);
  digitalWrite(blinker, LOW);

  // Initialize SPIFFS
  SPIFFS.begin(true);
    if(!SPIFFS.begin(true)){
      Serial.println("An Error has occurred while mounting SPIFFS");
      return;
    }
    if(!SPIFFS.begin()){
      Serial.println("An Error has occurred while mounting SPIFFS");
      return;
    }

  // Read in existing data
  yourInputCustomMsg = readFile(SPIFFS, "/inputCustomMsg.txt");
  yourInputSend = readFile(SPIFFS, "/inputSend.txt").toInt();
  yourInputWPM = readFile(SPIFFS, "/inputWPM.txt").toFloat();
  yourInputMsg = readFile(SPIFFS, "/inputMsg.txt").toInt();
  yourInputFloat = readFile(SPIFFS, "/inputFloat.txt").toFloat();
  yourInputStartTimeUnix = readFile(SPIFFS, "/inputStartTimeUnix.txt").toInt();
  yourInputStepLength = readFile(SPIFFS, "/inputStepLength.txt").toInt();
  yourInputCycleID = readFile(SPIFFS, "/inputCycleID.txt").toInt();
  yourInputNtransmitters = readFile(SPIFFS, "/inputNtransmitters.txt").toInt();
  yourInputNetwork = readFile(SPIFFS, "/inputNetwork.txt").toInt();
  yourInputSSID = readFile(SPIFFS, "/inputSSID.txt");
  yourInputPassword = readFile(SPIFFS, "/inputPassword.txt");
  // Set WPM from saved value
  sender_blink.setWPM(yourInputWPM);
  sender_key.setWPM(yourInputWPM);

  // On restart, keep doing what you were doing before
  yourInputMsg_old = yourInputMsg;
  if(yourInputMsg == 0){
    sender_blink.setMessage(yourInputCustomMsg);
    sender_key.setMessage(yourInputCustomMsg);
  } else if(yourInputMsg == 1){
    sender_blink.setMessage(String("moe "));
    sender_key.setMessage(String("moe "));
  } else if(yourInputMsg == 2){
    sender_blink.setMessage(String("moi "));
    sender_key.setMessage(String("moi "));
  } else if(yourInputMsg == 3){
    sender_blink.setMessage(String("mos "));
    sender_key.setMessage(String("mos "));
  } else if(yourInputMsg == 4){
    sender_blink.setMessage(String("moh "));
    sender_key.setMessage(String("moh "));
  } else if(yourInputMsg == 5){
    sender_blink.setMessage(String("mo5 "));
    sender_key.setMessage(String("mo5 "));
  }

  WiFi.setHostname("vulpes");
  if (yourInputNetwork == 1){
    // Attach to existing wifi
    WiFi.mode(WIFI_STA);
    const char* ssid_char = yourInputSSID.c_str();
    const char* password_char = yourInputPassword.c_str();
    WiFi.begin(ssid_char, password_char);
    if (WiFi.waitForConnectResult() != WL_CONNECTED) {
      Serial.println("WiFi Failed!");
      // If you fail to connect, act as new access point
      WiFi.softAPConfig(local_ip, gateway, subnet);
      WiFi.softAP(ssid_ap, password_ap);
      //return;
    }
    Serial.print("IP Address: ");
    Serial.println(WiFi.localIP());
  } else if (yourInputNetwork == 0){
    // Act as new access point
    WiFi.softAPConfig(local_ip, gateway, subnet);
    WiFi.softAP(ssid_ap, password_ap);
  }

  
  // Send web page with input fields to client
  server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
    request->send_P(200, "text/html", index_html, processor);
  });

  // Form 1 
  // Send a GET request to <ESP_IP>/get?inputCustomMsg=<inputMessage>
  server.on("/get", HTTP_GET, [] (AsyncWebServerRequest *request) {
    String inputMessage;
    // GET inputCustomMsg value on <ESP_IP>/get?inputCustomMsg=<inputMessage>
    if (request->hasParam(PARAM_CMSG)) {
      inputMessage = request->getParam(PARAM_CMSG)->value();
      // arduinomorse needs lowercase characters
      std::transform(inputMessage.begin(), inputMessage.end(), inputMessage.begin(), ::tolower);
      writeFile(SPIFFS, "/inputCustomMsg.txt", inputMessage.c_str());
      yourInputCustomMsg = inputMessage;
      
    }
    // GET inputSend value on <ESP_IP>/get?inputSend=<inputMessage>
    if (request->hasParam(PARAM_SEND)) {
      inputMessage = request->getParam(PARAM_SEND)->value();
      writeFile(SPIFFS, "/inputSend.txt", inputMessage.c_str());
      yourInputSend = inputMessage.toInt();
      // if not running a program, set the program running off
      //if(yourInputSend != 2){
        // Cease all programs on new input
        startProgram = false;
        programRunning = false;
      //}
    }
    // GET inputWPM value on <ESP_IP>/get?inputWPM=<inputMessage>
    if (request->hasParam(PARAM_WPM)) {
      inputMessage = request->getParam(PARAM_WPM)->value();
      writeFile(SPIFFS, "/inputWPM.txt", inputMessage.c_str());
      yourInputWPM = inputMessage.toFloat();
      sender_blink.setWPM(yourInputWPM);
      sender_key.setWPM(yourInputWPM);
    }
    // GET inputMsg value on <ESP_IP>/get?inputMsg=<inputMessage>
    if (request->hasParam(PARAM_MSG)) {
      inputMessage = request->getParam(PARAM_MSG)->value();
      writeFile(SPIFFS, "/inputMsg.txt", inputMessage.c_str());
      // save previous state
      yourInputMsg_old = yourInputMsg;
      yourInputMsg = inputMessage.toInt();

      // Check the message every time the form is submitted.
      if(yourInputMsg == 0){
        sender_blink.setMessage(yourInputCustomMsg);
        sender_key.setMessage(yourInputCustomMsg);
      } else if(yourInputMsg == 1){
        sender_blink.setMessage(String("moe "));
        sender_key.setMessage(String("moe "));
      } else if(yourInputMsg == 2){
        sender_blink.setMessage(String("moi "));
        sender_key.setMessage(String("moi "));
      } else if(yourInputMsg == 3){
        sender_blink.setMessage(String("mos "));
        sender_key.setMessage(String("mos "));
      } else if(yourInputMsg == 4){
        sender_blink.setMessage(String("moh "));
        sender_key.setMessage(String("moh "));
      } else if(yourInputMsg == 5){
        sender_blink.setMessage(String("mo5 "));
        sender_key.setMessage(String("mo5 "));
      }
    }
    // GET inputStepLength value on <ESP_IP>/get?inputStepLength=<inputMessage>
    if (request->hasParam(PARAM_STEPLENGTH)) {
      inputMessage = request->getParam(PARAM_STEPLENGTH)->value();
      writeFile(SPIFFS, "/inputStepLength.txt", inputMessage.c_str());
      yourInputStepLength = inputMessage.toInt();
    }
    // GET inputCycleID value on <ESP_IP>/get?inputCycleID=<inputMessage>
    if (request->hasParam(PARAM_CYCLEID)) {
      inputMessage = request->getParam(PARAM_CYCLEID)->value();
      writeFile(SPIFFS, "/inputCycleID.txt", inputMessage.c_str());
      yourInputCycleID = inputMessage.toInt();
    }
    // GET inputNtransmitters value on <ESP_IP>/get?inputNtransmitters=<inputMessage>
    if (request->hasParam(PARAM_NTRANS)) {
      inputMessage = request->getParam(PARAM_NTRANS)->value();
      writeFile(SPIFFS, "/inputNtransmitters.txt", inputMessage.c_str());
      yourInputNtransmitters = inputMessage.toInt();
    }
    // GET inputTimeUnix value on <ESP_IP>/get?inputTimeUnix=<inputMessage>
    if (request->hasParam(PARAM_TIME)) {
      inputMessage = request->getParam(PARAM_TIME)->value();
      //https://stackoverflow.com/a/22733127/2152245
      yourInputTime = atol(inputMessage.c_str());
      Serial.print("yourInputTime: ");
      Serial.println(yourInputTime);
      // update the RTC time
      rtc.adjust(DateTime(yourInputTime));
      DateTime now = rtc.now();
      // Might work to fix random errors? If date is far in the future,
      // try to update again.
      // replace if with while if you want it to try a bunch...
      if(now.year() > 2040){
        Serial.print("Year is ");
        Serial.println(now.year());
        Serial.println("RTC can't set time. Trying again.");
        rtc.adjust(DateTime(yourInputTime));
      }

      Serial.print("UTC time from browser: ");
      Serial.print(now.year(), DEC);
      Serial.print('/');
      Serial.print(now.month(), DEC);
      Serial.print('/');
      Serial.print(now.day(), DEC);
      Serial.print(" (");
      Serial.print(now.dayOfTheWeek());
      Serial.print(") ");
      Serial.print(now.hour(), DEC);
      Serial.print(':');
      Serial.print(now.minute(), DEC);
      Serial.print(':');
      Serial.print(now.second(), DEC);
      Serial.println();

      Serial.print("rtc.now().unixtime(): ");
      Serial.println(rtc.now().unixtime());
    }
    // GET inputFloat value on <ESP_IP>/get?inputFloat=<inputMessage>
    if (request->hasParam(PARAM_FLOAT)) {
      inputMessage = request->getParam(PARAM_FLOAT)->value();
      writeFile(SPIFFS, "/inputFloat.txt", inputMessage.c_str());
      yourInputFloat = inputMessage.toFloat();
    }
    // GET inputStartTimeUnix value on <ESP_IP>/get?inputStartTimeUnix=<inputMessage>
    if (request->hasParam(PARAM_START)) {
      inputMessage = request->getParam(PARAM_START)->value();
      Serial.println(inputMessage);
      // if a start time isn't entered, don't overwrite the old one
      //if(!(inputMessage != NULL && inputMessage[0] == '\0')){
        writeFile(SPIFFS, "/inputStartTimeUnix.txt", inputMessage.c_str());
        yourInputStartTimeUnix = atol(inputMessage.c_str());
      //}
      Serial.println(yourInputStartTimeUnix);
      
      // Use alarm built into RTC
      rtc.setAlarm1(DateTime(yourInputStartTimeUnix), DS3231_A1_Date);
      //rtc.setAlarm1(DateTime(2020, 6, 25, 15, 34, 0), DS3231_A2_Date);
      DateTime alarm_one = rtc.getAlarm1(); // Get the current alarm time
      char buff[] = "Alarm 1 set for at hh:mm:ss DDD, DD MMM YYYY";
      Serial.print(alarm_one.toString(buff));
      Serial.println(" (only HH:MM:SS day-of-month are accurate)");
    }
    // https://techtutorialsx.com/2018/01/14/esp32-arduino-http-server-external-and-internal-redirects/
    request->redirect("/");
  });

  // Form 2
  server.on("/get2", HTTP_GET, [] (AsyncWebServerRequest *request) {
    String inputMessage;
    /// GET inputNetwork value on <ESP_IP>/get2?inputNetwork=<inputMessage>
    if (request->hasParam(PARAM_NETWORK)) {
      inputMessage = request->getParam(PARAM_NETWORK)->value();
      writeFile(SPIFFS, "/inputNetwork.txt", inputMessage.c_str());
      yourInputNetwork = inputMessage.toInt();
      Serial.println(yourInputNetwork);
    }
    /// GET inputSSID value on <ESP_IP>/get2?inputSSID=<inputMessage>
    if (request->hasParam(PARAM_SSID)) {
      inputMessage = request->getParam(PARAM_SSID)->value();
      writeFile(SPIFFS, "/inputSSID.txt", inputMessage.c_str());
      yourInputSSID = inputMessage;
      Serial.println(yourInputSSID);
    }
    /// GET inputNetwork value on <ESP_IP>/get2?inputNetwork=<inputMessage>
    if (request->hasParam(PARAM_PASSWORD)) {
      inputMessage = request->getParam(PARAM_PASSWORD)->value();
      writeFile(SPIFFS, "/inputPassword.txt", inputMessage.c_str());
      yourInputPassword = inputMessage;
      Serial.println(yourInputPassword);
    }
    // Shouldn't need to do this if using this form.
    //request->redirect("/");

    resetFunc();  // reset the Arduino via software function
  });

  server.onNotFound(notFound);
  server.begin();

}

void loop() {

  // This statement from https://github.com/garrysblog/DS3231-Alarm-With-Adafruit-RTClib-Library/blob/master/DS3231-RTClib-Adafruit-Alarm-Poll-alarmFired/DS3231-RTClib-Adafruit-Alarm-Poll-alarmFired.ino
  // Check if alarm by polling SQW alarm pin
  if((yourInputSend == 2) & (digitalRead(alarmPin) == LOW)) {
    // Print current time and date
    DateTime now = rtc.now(); // Get the current time
    char buff[] = "Alarm triggered at hh:mm:ss DDD, DD MMM YYYY";
    Serial.println(now.toString(buff));
    startProgram = true;

    // Disable and clear alarm
    rtc.clearAlarm(1); 
    rtc.clearAlarm(2); // clear the other one just in case 
  }

  // Once alarm has started the program, set things up to run
  if(startProgram == true){
    //Serial.println("Start sending");
    start_millis = millis() + ((yourInputCycleID - 1) * yourInputStepLength);
    stop_millis = start_millis + yourInputStepLength;
    if(yourInputCycleID == 1){
      pause_until_millis = stop_millis + (yourInputStepLength * (yourInputNtransmitters - 1)); 
    } else {
    // Subtract 2 rather than 1 here to account for start_millis duration at beginning of repeat.
      pause_until_millis = stop_millis + (yourInputStepLength * (yourInputNtransmitters - 2)); 
    }
    programRunning = true;
    startProgram = false;
  }

  // if you want to send continuous code, and it's not sending, then start it up
  if((yourInputSend == 1)){
    // If not sending, start sending. Yes, these need to be separate statements.
    if (!sender_blink.continueSending()){
          sender_blink.startSending();
      }
    if (!sender_key.continueSending()){
          sender_key.startSending();
      }
  // if you want to send cycle code and it's not sending, then start it up
  } else if((yourInputSend == 2) & (programRunning == true)){
      if((millis() < start_millis)){
        // Shut the pin off manually
        digitalWrite(blinker, LOW);
        digitalWrite(keyer, LOW);
      } else if((millis() >= start_millis) & (millis() <= stop_millis)){
        // If not sending, start sending. Yes, these need to be separate statements
        // for the blinker and keyer.
        if (!sender_blink.continueSending()){
              sender_blink.startSending();
          }
        if (!sender_key.continueSending()){
              sender_key.startSending();
          }
      } else if((millis() >= stop_millis) & (millis() <= pause_until_millis)){
        // do nothing in this case --  in between cycles
        // Shut the pin off manually
        digitalWrite(blinker, LOW);
        digitalWrite(keyer, LOW);
      } else if((millis() >= pause_until_millis)){
        startProgram = true;
      }
  // if the cycle program is not running
  } else if((yourInputSend == 2) & (programRunning == false)){
    // do we need something here?
  // if you don't want to send code
  } else if(yourInputSend == 0){
    // Shut the pin off manually
    digitalWrite(blinker, LOW);
    digitalWrite(keyer, LOW);
  }

}