diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 00000000..9f4d08cb
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,11 @@
+# SmartMatrix Library
+# https://github.com/pixelmatix/SmartMatrix
+# 
+
+cmake_minimum_required(VERSION 3.5)
+
+idf_component_register(SRC_DIRS "src"
+                       INCLUDE_DIRS "src"
+                       REQUIRES driver arduino Adafruit-GFX-Library Adafruit_BusIO)
+
+project(SmartMatrix)
diff --git a/src/MatrixEsp32Hub75Refresh_Impl.h b/src/MatrixEsp32Hub75Refresh_Impl.h
index c9288757..dc079411 100644
--- a/src/MatrixEsp32Hub75Refresh_Impl.h
+++ b/src/MatrixEsp32Hub75Refresh_Impl.h
@@ -132,11 +132,11 @@ void SmartMatrixHub75Refresh<refreshDepth, matrixWidth, matrixHeight, panelType,
     matrixUpdateFrames[1] = (frameStruct *)heap_caps_malloc(sizeof(frameStruct), MALLOC_CAP_DMA);
     assert(matrixUpdateFrames[1] != NULL);
 
-    printf("sizeof framestruct: %08X\r\n", (uint32_t)sizeof(frameStruct));
+    printf("sizeof framestruct: %08" PRIX32 "\r\n", (uint32_t)sizeof(frameStruct));
     show_esp32_dma_mem("DMA Memory Available before ptr1 alloc");
-    printf("matrixUpdateFrames[0] pointer: %08X\r\n", (uint32_t)matrixUpdateFrames[0]);
+    printf("matrixUpdateFrames[0] pointer: %08" PRIX32 "\r\n", (uint32_t)matrixUpdateFrames[0]);
     show_esp32_dma_mem("DMA Memory Available before ptr2 alloc");
-    printf("matrixUpdateFrames[1] pointer: %08X\r\n", (uint32_t)matrixUpdateFrames[1]);
+    printf("matrixUpdateFrames[1] pointer: %08" PRIX32 "\r\n", (uint32_t)matrixUpdateFrames[1]);
 
     printf("Frame Structs Allocated from Heap:\r\n");
     show_esp32_all_mem();
@@ -454,10 +454,10 @@ void SmartMatrixHub75Refresh<refreshDepth, matrixWidth, matrixHeight, panelType,
         .bits=MATRIX_I2S_MODE,
         .bufa=0,
         .bufb=0,
-        desccount,
-        desccount,
-        dmadesc_a,
-        dmadesc_b
+        .desccount_a=desccount,
+        .desccount_b=desccount,
+        .lldesc_a=dmadesc_a,
+		.lldesc_b=dmadesc_b
     };
 
     //Setup I2S
diff --git a/src/MatrixEsp32Hub75Refresh_NT_Impl.h b/src/MatrixEsp32Hub75Refresh_NT_Impl.h
index 791e4038..ce212d84 100644
--- a/src/MatrixEsp32Hub75Refresh_NT_Impl.h
+++ b/src/MatrixEsp32Hub75Refresh_NT_Impl.h
@@ -446,10 +446,10 @@ void SmartMatrixHub75Refresh_NT<dummyvar>::begin(uint32_t dmaRamToKeepFreeBytes)
         .bits=MATRIX_I2S_MODE,
         .bufa=0,
         .bufb=0,
-        desccount,
-        desccount,
-        dmadesc_a,
-        dmadesc_b
+		.desccount_a=desccount,
+		.desccount_b=desccount,
+		.lldesc_a=dmadesc_a,
+		.lldesc_b=dmadesc_b
     };
 
     //Setup I2S
diff --git a/src/MatrixHardware_ESP32_V0.h b/src/MatrixHardware_ESP32_V0.h
index 6468950f..3fb7c263 100755
--- a/src/MatrixHardware_ESP32_V0.h
+++ b/src/MatrixHardware_ESP32_V0.h
@@ -39,9 +39,10 @@
 #define ESP32_JC_RIBBON_PINOUT_WEMOS    8
 #define HUB75_ADAPTER_LITE_V0_PINOUT    9
 #define ESP32_RGB64x32MatrixPanel_I2S_DMA_DEFAULT    10
+#define ELECTRODRAGON_PINOUT    11
 
 #ifndef GPIOPINOUT
-#define GPIOPINOUT ESP32_FORUM_PINOUT
+#define GPIOPINOUT ELECTRODRAGON_PINOUT
 #endif
 //#define GPIOPINOUT ESP32_FORUM_PINOUT_WITH_LATCH // note this mode is untested as of 2018-05-17 - not being used anymore now that SmartMatrix Shield is available
 //#define GPIOPINOUT SMARTLED_SHIELD_V0_PINOUT
@@ -265,6 +266,63 @@
 
     #define CLK_PIN GPIO_NUM_22
 
+#elif (GPIOPINOUT == ELECTRODRAGON_PINOUT)
+
+
+    // https://www.electrodragon.com/product/mono-color-hub12-matrix-panel-drive-board-esp32/
+    // https://w2.electrodragon.com/Board-dat/IDD/IDD1023-dat/IDD1023-dat.md
+    // https://github.com/Edragon/Arduino-ESP32/tree/master/libraries/DMD32-main
+    // https://github.com/Edragon/Arduino-ESP32/blob/master/libraries/DMD32-main/connection.png
+
+    #pragma message "MatrixHardware: Electrodragon Mono Color HUB12 Matrix Panel Drive Board ESP32 wiring"
+
+    // ADDX is output directly using GPIO
+    #define CLKS_DURING_LATCH   0
+    #define MATRIX_I2S_MODE I2S_PARALLEL_BITS_16
+    #define MATRIX_DATA_STORAGE_TYPE uint16_t
+
+    /*
+    HUB 75
+    01 02 B0
+    03 04 Gnd
+    05 06 G1
+    07 08 E
+
+    09 10 B
+    11 12 D
+    13 14 STB/Latch
+    15 16 Gnd
+                        ESP32 pin / comment
+    1	R0	23	Red Data (columns 1-16)
+
+    4	GND	GND	Ground
+
+    9	A	19	Demux Input A0
+    10	B	21	Demux Input A1
+
+    13	CLK	18	LED Drivers' Clock
+    14	STB	2	LED Drivers' Latch
+
+    15	OE	22	LED Drivers' Output Enable
+    16	GND	GND	Ground
+    */
+    #define R1_PIN  GPIO_NUM_23
+    #define G1_PIN  GPIO_NUM_NC
+    #define B1_PIN  GPIO_NUM_NC
+    #define R2_PIN  GPIO_NUM_NC
+    #define G2_PIN  GPIO_NUM_NC
+    #define B2_PIN  GPIO_NUM_NC
+
+    #define A_PIN   GPIO_NUM_19
+    #define B_PIN   GPIO_NUM_21
+    #define C_PIN   GPIO_NUM_NC
+    #define D_PIN   GPIO_NUM_NC
+    #define E_PIN   GPIO_NUM_NC
+    #define LAT_PIN GPIO_NUM_2
+    #define OE_PIN  GPIO_NUM_22
+
+    #define CLK_PIN GPIO_NUM_18
+
 #elif (GPIOPINOUT == HUB75_ADAPTER_PINOUT)
 
     #pragma message "MatrixHardware: Hub75 Adapter Pinout"
@@ -376,11 +434,11 @@
     #define G2_PIN  GPIO_NUM_25
     #define B2_PIN  GPIO_NUM_0
 
-    #define A_PIN   -1
-    #define B_PIN   -1
-    #define C_PIN   -1
-    #define D_PIN   -1
-    #define E_PIN   -1
+    #define A_PIN   GPIO_NUM_NC
+    #define B_PIN   GPIO_NUM_NC
+    #define C_PIN   GPIO_NUM_NC
+    #define D_PIN   GPIO_NUM_NC
+    #define E_PIN   GPIO_NUM_NC
 
     #define LAT_PIN GPIO_NUM_27
     #define OE_PIN  GPIO_NUM_32
@@ -409,11 +467,11 @@
     #define G2_PIN  GPIO_NUM_25
     #define B2_PIN  GPIO_NUM_21
 
-    #define A_PIN   -1
-    #define B_PIN   -1
-    #define C_PIN   -1
-    #define D_PIN   -1
-    #define E_PIN   -1
+    #define A_PIN   GPIO_NUM_NC
+    #define B_PIN   GPIO_NUM_NC
+    #define C_PIN   GPIO_NUM_NC
+    #define D_PIN   GPIO_NUM_NC
+    #define E_PIN   GPIO_NUM_NC
 
     #define LAT_PIN GPIO_NUM_22
     #define OE_PIN  GPIO_NUM_19
@@ -442,11 +500,11 @@
     #define G2_PIN  GPIO_NUM_25
     #define B2_PIN  GPIO_NUM_21
 
-    #define A_PIN   -1
-    #define B_PIN   -1
-    #define C_PIN   -1
-    #define D_PIN   -1
-    #define E_PIN   -1
+    #define A_PIN   GPIO_NUM_NC
+    #define B_PIN   GPIO_NUM_NC
+    #define C_PIN   GPIO_NUM_NC
+    #define D_PIN   GPIO_NUM_NC
+    #define E_PIN   GPIO_NUM_NC
 
     #define LAT_PIN GPIO_NUM_22
     #define OE_PIN  GPIO_NUM_19
@@ -478,11 +536,11 @@
     #define G2_PIN  GPIO_NUM_25
     #define B2_PIN  GPIO_NUM_15
 
-    #define A_PIN   -1
-    #define B_PIN   -1
-    #define C_PIN   -1
-    #define D_PIN   -1
-    #define E_PIN   -1
+    #define A_PIN   GPIO_NUM_NC
+    #define B_PIN   GPIO_NUM_NC
+    #define C_PIN   GPIO_NUM_NC
+    #define D_PIN   GPIO_NUM_NC
+    #define E_PIN   GPIO_NUM_NC
 
     #define LAT_PIN GPIO_NUM_10
     #define OE_PIN  GPIO_NUM_9
diff --git a/src/esp32_i2s_parallel.c b/src/esp32_i2s_parallel.c
index e4db0b15..30312c0b 100644
--- a/src/esp32_i2s_parallel.c
+++ b/src/esp32_i2s_parallel.c
@@ -26,12 +26,20 @@
 
 #include "soc/i2s_struct.h"
 #include "soc/i2s_reg.h"
+#include "soc/gpio_periph.h"
 #include "driver/periph_ctrl.h"
+#include "driver/gpio.h"
 #include "soc/io_mux_reg.h"
 #include "rom/lldesc.h"
 #include "esp_heap_caps.h"
 #include "esp32_i2s_parallel.h"
 
+#if CONFIG_IDF_TARGET_ESP32
+#include "esp32/rom/gpio.h"
+#else
+#error Target CONFIG_IDF_TARGET is not supported
+#endif
+
 typedef struct {
     volatile lldesc_t *dmadesc_a, *dmadesc_b;
     int desccount_a, desccount_b;