Best Free Pine Script for TradingView: প্রফিটেবল ইন্ডিকেটর সেটআপ (২০২৬)

//@version=5
strategy("Trade Logic BD PRO FILTER VERSION v5", overlay=true, pyramiding=0)

// Input Settings
fastEMA_Length = input.int(9, "Fast EMA Length")
slowEMA_Length = input.int(21, "Slow EMA Length")
rsiLength = input.int(14, "RSI Length")
adxLength = input.int(14, "ADX Length")
supertrendFactor = input.float(3.0, "Supertrend Factor")
supertrendATR = input.int(10, "Supertrend ATR")
emaDistance = input.float(0.15, "Minimum EMA Distance %")
rsiBuyMin = input.int(52, "RSI Buy Minimum")
rsiBuyMax = input.int(68, "RSI Buy Maximum")
rsiSellMin = input.int(32, "RSI Sell Minimum")
rsiSellMax = input.int(48, "RSI Sell Maximum")
adxMinimum = input.int(20, "Minimum ADX Strength")
volumeMultiplier = input.float(1.2, "Volume Filter")
cooldownBars = input.int(5, "Signal Cooldown Bars")

// Logic
emaFast = ta.ema(close, fastEMA_Length)
emaSlow = ta.ema(close, slowEMA_Length)
rsi = ta.rsi(close, rsiLength)
[superTrend, trendDirection] = ta.supertrend(supertrendFactor, supertrendATR)
[diPlus, diMinus, adx] = ta.dmi(adxLength, adxLength)
volumeOK = volume > ta.sma(volume,20) * volumeMultiplier
emaGap = math.abs(emaFast - emaSlow) / close * 100
emaSeparated = emaGap > emaDistance
bullCross = ta.crossover(emaFast, emaSlow)
bearCross = ta.crossunder(emaFast, emaSlow)
bullCandle = close > open and (close-open) > (high-low)*0.5
bearCandle = close < open and (open-close) > (high-low)*0.5
bullTrend = close > superTrend and trendDirection < 0
bearTrend = close < superTrend and trendDirection > 0
rsiBull = rsi > rsiBuyMin and rsi < rsiBuyMax
rsiBear = rsi > rsiSellMin and rsi < rsiSellMax
strongTrend = adx > adxMinimum
var int lastSignal = na
canTrade = na(lastSignal) or bar_index - lastSignal > cooldownBars

BUY = bullCross and bullTrend and rsiBull and strongTrend and emaSeparated and bullCandle and volumeOK and canTrade
SELL = bearCross and bearTrend and rsiBear and strongTrend and emaSeparated and bearCandle and volumeOK and canTrade

if BUY
    strategy.entry("BUY", strategy.long)
    lastSignal := bar_index
if SELL
    strategy.entry("SELL", strategy.short)
    lastSignal := bar_index

plot(emaFast, color=color.blue, linewidth=2, title="Fast EMA")
plot(emaSlow, color=color.orange, linewidth=2, title="Slow EMA")
plot(superTrend, color=trendDirection < 0 ? color.green : color.red, linewidth=2, title="Supertrend")
plotshape(BUY, title="BUY Signal", style=shape.labelup, text="BUY", color=color.green, textcolor=color.white, size=size.small)
plotshape(SELL, title="SELL Signal", style=shape.labeldown, text="SELL", color=color.red, textcolor=color.white, size=size.small)