[EA] EMA Cross EA

EMA Cross EA is a tool that allows for quick opening of positions with lower capital by setting different parameters based on FasterEMA and SlowerEMA indicators.

• EMA Cross Signal:
  Use two EMA: FasterEMA and SlowerEMA.
  When the fast line crosses the slow line from below (golden cross), draw a blue up arrow (↑) below the candle low point to indicate a buy signal.
  When the fast line crosses the slow line from above (dead cross), draw a red down arrow (↓) above the candle high point to indicate a sell signal.
• Adjustable parameters:
  FasterEMA: Express cycle (default value 2).
  SlowEMA: Slow line period (default value 15).
  SoundON: Whether to turn on sound alarm (default true).
• Alarm function:
  When a cross occurs, an alert window will pop up to indicate the trend direction (e.g.: EMA Cross Trend going Up/Down on Symbol Period）。
• Signal confirmation:
  The code uses the EMA values of the current column, the previous column, and the next column for cross validation to avoid false signals.