simple boot to rsi_2 by https://www.youtube.com/watch?v=v8u1gdCzrFk&feature=youtu.be

rsi_2_bot.cpp

#property copyright "Itacir Ferreira Pompeu"
#property version   "0.01"
//fix extencioa
#include <Trade/Trade.mqh>

input double lote = 1.0;
input int ema_lower = 5;

double ema_lower_buffer[];
double ifr_buffer[];
int ema_lower_handle;
int ifr_handle;


CTrade trade;
MqlRates rates[];

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int OnInit()
  {
//---
   ArraySetAsSeries(ema_lower_buffer, true);
   ArraySetAsSeries(ifr_buffer, true);

   ema_lower_handle = iMA(_Symbol,_Period, ema_lower,0, MODE_SMA, PRICE_CLOSE);
   ifr_handle = iRSI(_Symbol,_Period, 2, PRICE_CLOSE);
//---
   return(INIT_SUCCEEDED);
  }

//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
bool comprado = false;

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void OnTick()
  {
//---

   CopyBuffer(ema_lower_handle, 0, 0, 3, ema_lower_buffer);
   CopyBuffer(ifr_handle, 0, 0, 3, ifr_buffer);
   CopyRates(Symbol(), Period(), 0, 3, rates);

   if(ifr_buffer[0] < 5 &&  !comprado)
     {
      comprado = true;
      trade.Buy(lote, Symbol(), 0, 0, 0);
     }

   bool  rates_close_up_ema = rates[1].close > ema_lower_buffer[1];

   if(comprado && rates_close_up_ema)
     {
      trade.Sell(lote, Symbol(), normalize_to_indice(rates[1].close), 0, 0);
      comprado = false;
     }

  }
//+------------------------------------------------------------------+
void close_all()
  {
   if(PositionGetInteger(POSITION_TYPE) == POSITION_TYPE_BUY || PositionGetInteger(POSITION_TYPE) == POSITION_TYPE_SELL)
     {
      trade.PositionClose(PositionGetInteger(POSITION_TICKET));
      trade.OrderDelete(OrderGetTicket((int)PositionGetInteger(POSITION_TICKET)));
     }
  }
//+------------------------------------------------------------------+
bool is_new_bar()
  {
   static datetime last_time = 0;
   datetime lastbar_time = (datetime)SeriesInfoInteger(_Symbol, _Period, SERIES_LASTBAR_DATE);

   if(last_time == 0)
     {
      last_time = lastbar_time;
      return (false);
     }

   if(last_time != lastbar_time)
     {
      last_time = lastbar_time;
      return (true);
     }

   return (false);
  }

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
double normalize_to_indice(double prince)
  {
   return NormalizeDouble(prince - MathMod(prince, 5), _Digits) * _Point;
  }

//+------------------------------------------------------------------+