how fix this error
Excuse my English is not good
FlashledBotme.ino: In function 'void Bot_ExecMessages()':
FlashledBotme.ino:43:30: warning: unknown escape sequence: '\/' [enabled by default]
FlashledBotme.ino:47:30: warning: unknown escape sequence: '\/' [enabled by default]
FlashledBotme.ino:51:30: warning: unknown escape sequence: '\/' [enabled by default]
C:\Users\Elisum\AppData\Roaming\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2\bin\xtensa-lx106-elf-ar: unable to rename 'C:\Users\Elisum\AppData\Local\Temp\build3938707344910902830.tmp/arduino.ar'; reason: File exists
Error compiling.
C:\Users\Elisum\AppData\Roaming\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2\bin\xtensa-lx106-elf-ar: unable to rename 'C:\Users\Elisum\AppData\Local\Temp\build3938707344910902830.tmp/arduino.ar'; reason: File exists
Error compiling.
Sketch uses 257,319 bytes (59%) of program storage space. Maximum is 434,160 bytes.
Global variables use 41,009 bytes (50%) of dynamic memory, leaving 40,911 bytes for local variables. Maximum is 81,920 bytes.
Program :
/*******************************************************************
* this is a basic example how to program a Telegram Bot *
* using TelegramBOT library on ESP8266 *
* *
* Open a conversation with the bot, you can command via Telegram *
* a led from ESP8266 GPIO *
* https://web.telegram.org/#/im?p=@FlashledBot_bot *
* *
* written by Giancarlo Bacchio *
*******************************************************************/
#include <ESP8266WiFi.h>
#include <WiFiClientSecure.h>
#include <ESP8266TelegramBOT.h>
// Initialize Wifi connection to the router
char ssid[] = ".:ELISUM:."; // your network SSID (name)
char pass[] = "0921436505"; // your network key
// Initialize Telegram BOT
#define BOTtoken "358230547:AAHBzHXPD000000X1j3qxTKUXEQ" //token of FlashledBOT /// 249578705:AAGBz2gJ3m6c8qI3bx7JrmwD4fsVwc1qS4Y
#define BOTname "Nimaaryamehr"
#define BOTusername "Nimaaryamehr_bot"
TelegramBOT bot(BOTtoken, BOTname, BOTusername);
int Bot_mtbs = 1000; //mean time between scan messages
long Bot_lasttime; //last time messages' scan has been done
bool Start = false;
/********************************************
* EchoMessages - function to Echo messages *
********************************************/
void Bot_ExecMessages() {
for (int i = 1; i < bot.message[0][0].toInt() + 1; i++) {
bot.message[i][5]=bot.message[i][5].substring(1,bot.message[i][5].length());
if (bot.message[i][5] == "\/ledon") {
digitalWrite(13, HIGH); // turn the LED on (HIGH is the voltage level)
bot.sendMessage(bot.message[i][4], "Led is ON", "");
}
if (bot.message[i][5] == "\/ledoff") {
digitalWrite(13, LOW); // turn the LED off (LOW is the voltage level)
bot.sendMessage(bot.message[i][4], "Led is OFF", "");
}
if (bot.message[i][5] == "\/start") {
String wellcome = "Salam be bot esp8266 saeed khoshAmadi";
String wellcome1 = "/ledon : to switch the Led ON";
String wellcome2 = "/ledoff : to switch the Led OFF";
bot.sendMessage(bot.message[i][4], wellcome, "");
bot.sendMessage(bot.message[i][4], wellcome1, "");
bot.sendMessage(bot.message[i][4], wellcome2, "");
Start = true;
}
}
bot.message[0][0] = ""; // All messages have been replied - reset new messages
}
void setup() {
Serial.begin(115200);
delay(3000);
// attempt to connect to Wifi network:
Serial.print("Connecting Wifi: ");
Serial.println(ssid);
while (WiFi.begin(ssid, pass) != WL_CONNECTED) {
Serial.print(".");
delay(500);
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
IPAddress ip = WiFi.localIP();
Serial.println(ip);
bot.begin(); // launch Bot functionalities
pinMode(2, OUTPUT); // initialize digital pin 2 as an output.
}
void loop() {
if (millis() > Bot_lasttime + Bot_mtbs) {
bot.getUpdates(bot.message[0][1]); // launch API GetUpdates up to xxx message
Bot_ExecMessages(); // reply to message with Echo
Bot_lasttime = millis();
}
}