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#include <EEPROM.h>
#include <ESP8266WiFi.h>
#define SSID_SIZE 64
#define PWD_SIZE 64
#define EEPROM_SIZE SSID_SIZE+PWD_SIZE
String VERSION = "0.0.0-alpha.0";
String wifi_ssid = "";
String wifi_password = "";
int init_config = 0;
void printBanner() {
Serial.println(" ____ _ __ ___ _ ");
Serial.println("| _ \\ ___ _ __ ___ ___ | |_ ___ \\ \\ / / |__ ___ ___| |___ ");
Serial.println("| |_) / _ \\ '_ ` _ \\ / _ \\| __/ _ \\ \\ \\ /\\ / /| '_ \\ / _ \\/ _ \\ / __|");
Serial.println("| _ < __/ | | | | | (_) | || __/ \\ V V / | | | | __/ __/ \\__ \\");
Serial.println("|_| \\_\\___|_| |_| |_|\\___/ \\__\\___| \\_/\\_/ |_| |_|\\___|\\___|_|___/");
Serial.println("v" + VERSION);
Serial.println();
Serial.println("Digita `aiuto` per una lista di comandi.");
Serial.println("Se รจ la prima volta che configuri il dispositivo, esegui `init`.");
Serial.println();
}
void connectWifi() {
WiFi.begin(wifi_ssid.c_str(), wifi_password.c_str());
int i = 0;
Serial.print("Connessione in corso alla rete WiFi");
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
i++;
if (i == 5) break;
Serial.print(".");
}
Serial.println();
if (WiFi.status() != WL_CONNECTED) {
Serial.println("WiFi non connesso");
} else {
Serial.println("WiFi connesso con IP: " + WiFi.localIP());
}
}
void checkWifiStatus() {
if (WiFi.status() != WL_CONNECTED) {
digitalWrite(BUILTIN_LED, HIGH);
} else {
digitalWrite(BUILTIN_LED, LOW);
}
}
void erase(int from, int to) {
for (int i = from ; i < to ; i++)
EEPROM.write(i, '\0');
}
int writeWord(int address, String str) {
delay(10);
for (int i = 0; i < str.length(); i++, address++) {
EEPROM.write(address, str[i]);
}
EEPROM.write(address, '\0');
EEPROM.commit();
return address;
}
String readWord(int address) {
String str;
char readChar;
int i = address;
while ((readChar = char(EEPROM.read(i))) != '\0') {
delay(10);
str += readChar;
i++;
}
return str;
}
void printHelp() {
Serial.println("print|set ssid");
Serial.println(" Visualizza o imposta l'SSID del wifi.");
Serial.println();
Serial.println("print|set password");
Serial.println(" Visualizza o imposta la password del wifi.");
Serial.println();
Serial.println("print config");
Serial.println(" Visualizza l'attuale configurazione wifi.");
Serial.println();
}
void loadConfig() {
wifi_ssid = readWord(0);
wifi_password = readWord(SSID_SIZE + 1);
}
void printConfig() {
Serial.println("Configurazione");
Serial.println(" SSID: <" + wifi_ssid + ">");
Serial.println(" Password: <" + wifi_password + ">");
Serial.print(" EEPROM: <");
Serial.print(EEPROM.length());
Serial.println(">");
Serial.print(" IP: <");
Serial.print(WiFi.localIP());
Serial.println(">");
}
String readString() {
while (Serial.available() == 0) { }
String cmd = Serial.readString();
cmd.trim();
return cmd;
}
String readCommand() {
String cmd = Serial.readString();
cmd.trim();
return cmd;
}
void initConfig() {
printBanner();
String cmd;
while (!(cmd = readString()).equals("exit")) {
Serial.println("$ " + cmd);
if (cmd.equals("aiuto")) {
printHelp();
} else if (cmd.equals("set ssid")) {
Serial.print("Inserisci SSID: ");
wifi_ssid = readString();
Serial.println(wifi_ssid);
erase(0, SSID_SIZE);
writeWord(0, wifi_ssid);
} else if (cmd.equals("set password")) {
Serial.print("Inserisci la password: ");
wifi_password = readString();
Serial.println(wifi_password);
erase(SSID_SIZE + 1, PWD_SIZE);
writeWord(SSID_SIZE + 1, wifi_password);
} else if (cmd.equals("print ssid")) {
} else if (cmd.equals("print password")) {
} else if (cmd.equals("print config")) {
printConfig();
} else if (cmd.equals("load config")) {
loadConfig();
printConfig();
} else if (cmd.equals("init")) {
Serial.println("Formattazione della EEPROM...");
erase(0, EEPROM.length());
Serial.println("EEPROM formattata.");
} else {
Serial.println("Comando sconosciuto.");
}
Serial.println();
}
Serial.println("Esco dalla configurazione.");
Serial.println();
}
void parseCommand() {
String cmd = readCommand();
if (cmd.equals("config")) {
initConfig();
} else if (cmd.equals("connetti")) {
connectWifi();
}
}
void setup()
{
delay(3000);
Serial.begin(9600);
EEPROM.begin(EEPROM_SIZE);
loadConfig();
connectWifi();
pinMode(BUILTIN_LED, OUTPUT);
}
void loop()
{
parseCommand();
checkWifiStatus();
}
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