diff --git a/lib/led-matrix-32-16/led-matrix-32-16.cpp b/lib/led-matrix-32-16/led-matrix-32-16.cpp
index 23fc0b5..88287a3 100644
--- a/lib/led-matrix-32-16/led-matrix-32-16.cpp
+++ b/lib/led-matrix-32-16/led-matrix-32-16.cpp
@@ -26,8 +26,39 @@ inline VirtualCoords CustomPxBasePanel::getCoords(int16_t x, int16_t y)
 }
 
 
-LedMetrix32x16::LedMetrix32x16(/* args */)
+LedMetrix32x16::LedMetrix32x16(HUB75_I2S_CFG::i2s_pins _pins)
 {
+    _pins.r1 = _pins.r1;
+    _pins.g1 = _pins.g1;
+    _pins.b1 = _pins.b1;
+    _pins.r2 = _pins.r2;
+    _pins.g2 = _pins.g2;
+    _pins.b2 = _pins.b2;
+    _pins.a = _pins.a;
+    _pins.b = _pins.b;
+    _pins.c = _pins.c;
+    _pins.d = _pins.d;
+    _pins.e = _pins.e;
+    _pins.lat = _pins.lat;
+    _pins.oe = _pins.oe;
+    _pins.clk = _pins.clk;
+}
+LedMetrix32x16::LedMetrix32x16()
+{
+    _pins.r1 = R1_PIN_DEFAULT;
+    _pins.g1 = G1_PIN_DEFAULT;
+    _pins.b1 = B1_PIN_DEFAULT;
+    _pins.r2 = R2_PIN_DEFAULT;
+    _pins.g2 = G2_PIN_DEFAULT;
+    _pins.b2 = B2_PIN_DEFAULT;
+    _pins.a = A_PIN_DEFAULT;
+    _pins.b = B_PIN_DEFAULT;
+    _pins.c = C_PIN_DEFAULT;
+    _pins.d = D_PIN_DEFAULT;
+    _pins.e = E_PIN_DEFAULT;
+    _pins.lat = LAT_PIN_DEFAULT;
+    _pins.oe = OE_PIN_DEFAULT;
+    _pins.clk = CLK_PIN_DEFAULT;
 }
 
 void LedMetrix32x16::begin(int nRow, int nColl, int res_x, int res_y, PANEL_CHAIN_TYPE chain_type )
@@ -35,10 +66,8 @@ void LedMetrix32x16::begin(int nRow, int nColl, int res_x, int res_y, PANEL_CHAI
     HUB75_I2S_CFG mxconfig (
         res_x * 2, // width of a single panel
         res_y / 2, // height of a single panel
-        nRow * nColl     // chain length - number of panels in the chain
-               //       {R1_PIN_DEFAULT, G1_PIN_DEFAULT, B1_PIN_DEFAULT, R2_PIN_DEFAULT, G2_PIN_DEFAULT, B2_PIN_DEFAULT,
-               //        A_PIN_DEFAULT, B_PIN_DEFAULT, C_PIN_DEFAULT, D_PIN_DEFAULT, E_PIN_DEFAULT,
-               //        LAT_PIN_DEFAULT, OE_PIN_DEFAULT, CLK_PIN_DEFAULT}, // GPIO pin mapping
+        nRow * nColl,     // chain length - number of panels in the chain
+        _pins           // pin mapping
     );         // I2S clock speed
     // Create the DMA display object
 
diff --git a/lib/led-matrix-32-16/led-matrix-32-16.hpp b/lib/led-matrix-32-16/led-matrix-32-16.hpp
index 3d38bb4..f6c3d91 100644
--- a/lib/led-matrix-32-16/led-matrix-32-16.hpp
+++ b/lib/led-matrix-32-16/led-matrix-32-16.hpp
@@ -19,9 +19,11 @@ class LedMetrix32x16
 private:
     MatrixPanel_I2S_DMA * dma_display = nullptr; // pointer to the DMA display object
     CustomPxBasePanel * virtual_display = nullptr; // pointer to the virtual display object
+    HUB75_I2S_CFG::i2s_pins _pins;
 
 public:
     LedMetrix32x16();
+    LedMetrix32x16(HUB75_I2S_CFG::i2s_pins _pins);
     void begin(int nRow, int nColl, int res_x, int res_y, PANEL_CHAIN_TYPE chain_type = CHAIN_BOTTOM_RIGHT_UP);
 
     inline MatrixPanel_I2S_DMA * getDisplay() { return dma_display; } // return pointer to the DMA display object