This code snippet demonstrates how to implement a simple trading strategy using Heikin Ashi candlesticks calculated from a higher timeframe (1 hour) and executed on a lower timeframe (1 minute) using the ProBuilder programming language.

TIMEFRAME(1 hour,updateonclose) // Heikin-Ashii candle setup
if barindex > 0 then
    xClose = (open+close+low+high)/4
    xOpen = (xOpen[1]+xClose[1])/2
    //haHigh = Max(xOpen, xClose)
    //haLow = Min(xOpen, xClose)
    //xHigh = Max(High,haHigh)
    //xLow = Min(Low,haLow)
else
    xClose = (open+close+low+high)/4
    xOpen = (Open[1]+Close[1])/2
    //haHigh = Max(xOpen, xClose)
    //haLow = Min(xOpen, xClose)
    //xHigh = Max(High,haHigh)
    //xLow = Min(Low,haLow)
endif
Cond1 = xOpen > xClose //BEARish HA candlestick
TIMEFRAME(1 minute,updateonclose)
Cond2 = close < average[5,0](close) //current price < SMA5
TIMEFRAME(default)
IF Cond1 AND Cond2 AND Not OnMarket THEN
    SELLSHORT 1 CONTRACT AT MARKET
ENDIF
SET TARGET pPROFIT 50
SET STOP pLOSS 20

Explanation of the Code:

• The code starts by setting the timeframe to 1 hour to calculate the Heikin Ashi (HA) candlesticks. Heikin Ashi candles are a type of candlestick chart that averages price data to create a smoother appearance.
• Conditional Logic: If it's not the first bar (barindex > 0), the HA close and open prices are calculated based on the formulae provided. If it is the first bar, the HA open is calculated differently to handle the edge case.
• The code then checks if the HA candlestick is bearish (xOpen > xClose), which is stored in Cond1.
• The timeframe is switched to 1 minute to check the current price against a 5-period simple moving average (SMA). This condition (close < average[5,0](close)) is stored in Cond2.
• If both conditions (Cond1 and Cond2) are true and the strategy is not already in the market (Not OnMarket), it triggers a short sell of 1 contract at the market price.
• Finally, the code sets a profit target of 50 points and a stop loss of 20 points to manage the trade.

This snippet is a practical example of how to implement a multi-timeframe strategy in ProBuilder, utilizing different timeframes for signal confirmation and trade execution.