vulpes/vulpes/src/main.cpp

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/*********
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>
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#include <arduino-timer.h>
#include <Telegraph.h>
//#include <morse.h> //arduino morse
//#include <Morse.h> //etherkit morse
#include <jled.h> // jled
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#include "jled/morse.h" //jled
//#include "morse_effect.h" // jled
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// download zip from https://github.com/me-no-dev/ESPAsyncWebServer and install.
#include <ESPAsyncWebServer.h>
AsyncWebServer server(80);
// Read from config.h
const char* ssid = WIFI_SSID;
const char* password = WIFI_PASSWORD;
const char* PARAM_STRING = "inputString";
const char* PARAM_SEND = "inputSend";
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const char* PARAM_FLOAT = "inputFloat";
// Global variables
String yourInputString;
int yourInputSend;
float yourInputFloat;
// HTML web page to handle 3 input fields (inputString, inputSend, inputFloat)
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const char index_html[] PROGMEM = R"rawliteral(
<!DOCTYPE HTML><html><head>
<title>ESP Input Form</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<script>
function submitMessage() {
<!--alert("Saved value to ESP SPIFFS");-->
setTimeout(function(){ document.location.reload(false); }, 500);
}
</script></head><body>
<form action="/get" target="hidden-form">
inputString (current value %inputString%): <input type="text" name="inputString" value=%inputString%><br>
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Sending program:
<select name="inputSend" id="send-program">
<option value="0">Off</option>
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<option value="1">Continuous</option>
<option value="2">Cycle</option>
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</select><br>
inputFloat (current value %inputFloat%): <input type="number " name="inputFloat" value = %inputFloat%><br>
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<input type="submit" value="Submit" onclick="submitMessage()">
</form>
<iframe style="display:none" name="hidden-form"></iframe>
</body></html>)rawliteral";
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// Auxiliary variables to store the current output state
String output26State = "off";
String output27State = "off";
// Assign output variables to GPIO pins
const int output26 = 26;
const int output27 = 27;
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// Timers
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//auto timer = timer_create_default();
Timer<1> timer;
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auto time_until_start = timer_create_default();
// Example from https://github.com/contrem/arduino-timer#examples
bool toggle_led(void *) {
digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN)); // toggle the LED
return true; // keep timer active? true
}
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// Toggle GPIO pin (LED or relay)
bool toggle_gpio_26(void *) {
if(output26State == "off"){
output26State = "on";
digitalWrite(output26, HIGH);
} else {
output26State = "off";
digitalWrite(output26, LOW);
}
return true; // keep timer active? true
}
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// defaults
// String yourInputString;
// int yourInputSend;
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// float yourInputFloat;
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void notFound(AsyncWebServerRequest *request) {
request->send(404, "text/plain", "Not found");
}
String readFile(fs::FS &fs, const char * path){
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//Serial.printf("Reading file: %s\r\n", path);
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File file = fs.open(path, "r");
if(!file || file.isDirectory()){
Serial.println("- empty file or failed to open file");
return String();
}
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//Serial.println("- read from file:");
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String fileContent;
while(file.available()){
fileContent+=String((char)file.read());
}
file.close();
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//Serial.println(fileContent);
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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();
}
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// Replaces placeholder in web UI with stored values
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String processor(const String& var){
//Serial.println(var);
if(var == "inputString"){
return readFile(SPIFFS, "/inputString.txt");
}
else if(var == "inputSend"){
return readFile(SPIFFS, "/inputSend.txt");
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}
else if(var == "inputFloat"){
return readFile(SPIFFS, "/inputFloat.txt");
}
return String();
}
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// vvvvv Modify some functions from KB1OIQ's controller.
// This section hasn't been tested on the hardware.
//int dit_len = 60 ; //milliseconds; https://morsecode.world/international/timing.html
//================================================================================
// stop_26(): set GPIO 26 to LOW. Used for dot(), dash().
//================================================================================
bool stop_26(void *){
output26State = "off";
digitalWrite(output26, LOW);
return false; // keep timer active? true
}
//================================================================================
// dit(): transmit a single dit
//================================================================================
void dit(int dit_len = 1000) {
output26State = "on";
digitalWrite(output26, HIGH);
timer.in(dit_len, stop_26);
}
//================================================================================
// dah(): transmit a single dah
//================================================================================
void dah(int dit_len = 1000) {
output26State = "on";
digitalWrite(output26, HIGH);
timer.in(dit_len * 3, stop_26);
}
//================================================================================
// char_space()): transmit a character space
//================================================================================
// A function that does nothing except (hopefully) block the timer.
bool empty(void *) {
return false;
}
void char_space(int dit_len = 1000) {
timer.in(dit_len, empty);
}
void k(){
Serial.println("K");
dah();
char_space();
dit();
char_space();
dah();
}
// ^^^^
//telegraph
//Telegraph telegraph(LED_BUILTIN, 10, HIGH);
Telegraph telegraph26(output26, 10, HIGH);
//arduinomorse
//LEDMorseSender sender(LED_BUILTIN);
//Etherkit Morse
//Morse morse(LED_BUILTIN, 15);
//jled from https://github.com/jandelgado/jled/blob/master/examples/morse/morse_effect.h
class MorseEffect : public jled::BrightnessEvaluator {
Morse morse_;
// duration of a single 'dit' in ms
const uint16_t speed_;
public:
explicit MorseEffect(const char* message, uint16_t speed = 200)
: morse_(message), speed_(speed) {}
uint8_t Eval(uint32_t t) const override {
const auto pos = t / speed_;
if (pos >= morse_.size()) return 0;
return morse_.test(pos) ? 255 : 0;
}
uint16_t Period() const override { return (morse_.size() + 1) * speed_; }
};
// Speed is milliseconds per dit, which is 1000 * (60 / (50 * WPM))
// 60 is 20 wpm, 120 is 10 wpm, 90 is 15 wpm, etc.
// https://morsecode.world/international/timing.html
MorseEffect morseEffect("CQ CQ CQ DE W1CDN", 120);
auto morseLed =
JLed(output26).UserFunc(&morseEffect).DelayAfter(2000).Forever();
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//================================================================================
// setup(): stuff that only gets done once, after power up (KB1OIQ's description)
//================================================================================
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void setup() {
Serial.begin(115200);
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// Timer example, blink main LED
pinMode(LED_BUILTIN, OUTPUT); // set LED pin to OUTPUT
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// call the toggle_led function every 10000 millis (10 second)
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//timer.every(10000, toggle_led);
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// call the toggle_gpio_26 function
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//timer.every(1000, toggle_gpio_26);
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// Initialize the output variables as outputs
pinMode(output26, OUTPUT);
pinMode(output27, OUTPUT);
// Set outputs to LOW
digitalWrite(output26, LOW);
digitalWrite(output27, LOW);
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// Initialize SPIFFS
SPIFFS.begin(true);
//#ifdef ESP32
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if(!SPIFFS.begin(true)){
Serial.println("An Error has occurred while mounting SPIFFS");
return;
}
//#else
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if(!SPIFFS.begin()){
Serial.println("An Error has occurred while mounting SPIFFS");
return;
}
//#endif
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// Read in existing data
yourInputString = readFile(SPIFFS, "/inputString.txt");
yourInputSend = readFile(SPIFFS, "/inputSend.txt").toInt();
yourInputFloat = readFile(SPIFFS, "/inputFloat.txt").toFloat();
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WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
if (WiFi.waitForConnectResult() != WL_CONNECTED) {
Serial.println("WiFi Failed!");
return;
}
Serial.println();
Serial.print("IP Address: ");
Serial.println(WiFi.localIP());
// Send web page with input fields to client
server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
request->send_P(200, "text/html", index_html, processor);
});
// Send a GET request to <ESP_IP>/get?inputString=<inputMessage>
server.on("/get", HTTP_GET, [] (AsyncWebServerRequest *request) {
String inputMessage;
// GET inputString value on <ESP_IP>/get?inputString=<inputMessage>
if (request->hasParam(PARAM_STRING)) {
inputMessage = request->getParam(PARAM_STRING)->value();
writeFile(SPIFFS, "/inputString.txt", inputMessage.c_str());
yourInputString = inputMessage;
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}
// 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();
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}
// GET inputFloat value on <ESP_IP>/get?inputFloat=<inputMessage>
if (request->hasParam(PARAM_FLOAT)) {
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inputMessage = request->getParam(PARAM_FLOAT)->value();
writeFile(SPIFFS, "/inputFloat.txt", inputMessage.c_str());
yourInputFloat = inputMessage.toFloat();
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}
// else {
// inputMessage = "No message sent";
// }
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request->send(200, "text/plain", inputMessage);
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});
server.onNotFound(notFound);
server.begin();
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//telegraph
//telegraph.send("CQ CQ CQ");
//telegraph26.send("CQ CQ CQ DE W1CDN K");
// arduinomorse
// sender.setup();
// sender.setMessage(String("73 de kb3jcy "));
// sender.startSending();
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}
void loop() {
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// Timers
time_until_start.tick();
timer.tick();
//arduinomorse
//sender.continueSending();
// if you want to send continuous code, and it's not sending, then start it up
if((yourInputSend == 1) & (morseLed.IsRunning() == false)){
//jled
morseLed.Reset().Update();
//morse.send("CQ CQ CQ DE W1CDN K"); //etherkit morse
//telegraph26.send("CQ CQ CQ DE W1CDN K"); //telegraph
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// if you want to send continuous code, and it is sending, keep sending
} else if((yourInputSend == 1) & (morseLed.IsRunning() == true)){
morseLed.Update();
// if you want to send cycle code and it is sending, keep sending
} else if((yourInputSend == 2) & (morseLed.IsRunning() == true)){
morseLed.Update();
// if you want to send cycle code and it's not sending, then start it up
} else if((yourInputSend == 2) & (morseLed.IsRunning() == true)){
morseLed.Reset().Update();
// if you don't want to send code
} else {
// stop sending and make sure the pin is off
morseLed.Stop(JLed::eStopMode::FULL_OFF).Update();
}
morseLed.Update();
// Blink LED according to seconds entered
// if (yourInputInt > 0) {
// Serial.println("GPIO 26 on");
// output26State = "on";
// digitalWrite(output26, HIGH);
// delay(yourInputInt * 1000);
// Serial.println(yourInputInt);
// Serial.println("GPIO 26 off");
// output26State = "off";
// digitalWrite(output26, LOW);
// delay(yourInputInt * 1000);
// } else {
// output26State = "off";
// }
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}