diff --git a/ESPixelStick/src/FileMgr.cpp b/ESPixelStick/src/FileMgr.cpp
index 21825f110..1c6abf231 100644
--- a/ESPixelStick/src/FileMgr.cpp
+++ b/ESPixelStick/src/FileMgr.cpp
@@ -24,7 +24,16 @@
 #include "FileMgr.hpp"
 #include "network/NetworkMgr.hpp"
 
-SdFat sd;
+SdFs sd;
+const int8_t DISABLE_CS_PIN = -1;
+
+#if HAS_SDIO_CLASS
+#define SD_CONFIG SdioConfig(FIFO_SDIO)
+#elif ENABLE_DEDICATED_SPI
+#define SD_CONFIG SdSpiConfig(SD_CS_PIN, DEDICATED_SPI, SD_SCK_MHZ(16))
+#else  // HAS_SDIO_CLASS
+#define SD_CONFIG SdSpiConfig(SD_CS_PIN, SHARED_SPI, SD_SCK_MHZ(16))
+#endif  // HAS_SDIO_CLASS
 
 oflag_t XlateFileMode[3] = { O_READ , O_WRITE | O_CREAT, O_WRITE | O_APPEND };
 #ifdef SUPPORT_FTP
@@ -373,16 +382,13 @@ void c_FileMgr::SetSpiIoPins ()
         // DEBUG_V();
         pinMode(miso_pin, INPUT);
 #       endif // def USE_MISO_PULLUP
-        SPI.begin (clk_pin, miso_pin, mosi_pin, cs_pin);
+        SPI.begin (clk_pin, miso_pin, mosi_pin, cs_pin); // uses HSPI by default
 #   else // ESP8266
         SPI.end ();
         SPI.begin ();
 #   endif // ! ARDUINO_ARCH_ESP32
         // DEBUG_V();
-        ResetSdCard();
-
-        // DEBUG_V();
-        if (!ESP_SD.begin (SdSpiConfig(cs_pin, SHARED_SPI, SD_CARD_CLK_MHZ, &SPI)))
+        if (!ESP_SD.begin (SdSpiConfig(cs_pin, SHARED_SPI, SD_SCK_MHZ(16))))
 #endif // !def SUPPORT_SD_MMC
         {
             // DEBUG_V();
@@ -1192,11 +1198,11 @@ bool c_FileMgr::OpenSdFile (const String & FileName, FileMode Mode, FileId & Fil
 
         // DEBUG_V ();
 
-        // DEBUG_V (String("FileName: '") + FileNamePrefix + FileName + "'");
+        // DEBUG_V (String("FileName: '") + FileName + "'");
 
         if (FileMode::FileRead == Mode)
         {
-            // DEBUG_V (String("Read FIle"));
+            // DEBUG_V (String("Read mode"));
             if (false == ESP_SD.exists (FileName))
             {
                 logcon (String (F ("ERROR: Cannot find '")) + FileName + F ("' for reading. File does not exist."));
@@ -1221,7 +1227,7 @@ bool c_FileMgr::OpenSdFile (const String & FileName, FileMode Mode, FileId & Fil
             FileHandle = FileList[FileListIndex].handle;
         }
 
-        // did we get an index
+        // DEBUG_V("did we get an index");
         if (-1 != FileListIndex)
         {
             // DEBUG_V(String("Valid FileListIndex: ") + String(FileListIndex));
diff --git a/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_BreakDanceV2.hpp b/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_BreakDanceV2.hpp
index 1cb2e8edf..f23cfc1a0 100644
--- a/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_BreakDanceV2.hpp
+++ b/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_BreakDanceV2.hpp
@@ -28,7 +28,7 @@
 #define SUPPORT_SPI_OUTPUT
 #define DEFAULT_SPI_DATA_GPIO   gpio_num_t::GPIO_NUM_27
 #define DEFAULT_SPI_CLOCK_GPIO  gpio_num_t::GPIO_NUM_32
-#define DEFAULT_SPI_DEVICE      HSPI_HOST
+#define DEFAULT_SPI_DEVICE      VSPI_HOST
 
 #define DEFAULT_I2C_SDA         gpio_num_t::GPIO_NUM_3
 #define DEFAULT_I2C_SCL         gpio_num_t::GPIO_NUM_5
diff --git a/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_D1_MINI.hpp b/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_D1_MINI.hpp
index c8d04903a..bb2f64886 100644
--- a/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_D1_MINI.hpp
+++ b/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_D1_MINI.hpp
@@ -30,7 +30,7 @@
 #define SUPPORT_SPI_OUTPUT
 #define DEFAULT_SPI_DATA_GPIO  gpio_num_t::GPIO_NUM_15
 #define DEFAULT_SPI_CLOCK_GPIO gpio_num_t::GPIO_NUM_25
-#define DEFAULT_SPI_DEVICE     HSPI_HOST
+#define DEFAULT_SPI_DEVICE     VSPI_HOST
 
 #define DEFAULT_I2C_SDA        gpio_num_t::GPIO_NUM_21
 #define DEFAULT_I2C_SCL        gpio_num_t::GPIO_NUM_22
diff --git a/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_D1_MINI_ETH.hpp b/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_D1_MINI_ETH.hpp
index 4b4b1464a..18dc02ab8 100644
--- a/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_D1_MINI_ETH.hpp
+++ b/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_D1_MINI_ETH.hpp
@@ -41,7 +41,7 @@
 #define SUPPORT_SPI_OUTPUT
 #define DEFAULT_SPI_DATA_GPIO    gpio_num_t::GPIO_NUM_15
 #define DEFAULT_SPI_CLOCK_GPIO   gpio_num_t::GPIO_NUM_25
-#define DEFAULT_SPI_DEVICE       HSPI_HOST
+#define DEFAULT_SPI_DEVICE       VSPI_HOST
 
 #include <ETH.h>
 
diff --git a/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_DevkitC.hpp b/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_DevkitC.hpp
index 9b1cab120..34d3ae273 100644
--- a/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_DevkitC.hpp
+++ b/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_DevkitC.hpp
@@ -31,7 +31,7 @@
 #define SUPPORT_SPI_OUTPUT
 #define DEFAULT_SPI_DATA_GPIO   gpio_num_t::GPIO_NUM_16
 #define DEFAULT_SPI_CLOCK_GPIO  gpio_num_t::GPIO_NUM_17
-#define DEFAULT_SPI_DEVICE      HSPI_HOST
+#define DEFAULT_SPI_DEVICE      VSPI_HOST
 
 #define DEFAULT_I2C_SDA         gpio_num_t::GPIO_NUM_3
 #define DEFAULT_I2C_SCL         gpio_num_t::GPIO_NUM_5
diff --git a/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_KA.hpp b/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_KA.hpp
index be24e5759..5b0245454 100644
--- a/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_KA.hpp
+++ b/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_KA.hpp
@@ -28,7 +28,7 @@
 #define SUPPORT_SPI_OUTPUT
 #define DEFAULT_SPI_DATA_GPIO  gpio_num_t::GPIO_NUM_15
 #define DEFAULT_SPI_CLOCK_GPIO gpio_num_t::GPIO_NUM_25
-#define DEFAULT_SPI_DEVICE     HSPI_HOST
+#define DEFAULT_SPI_DEVICE     VSPI_HOST
 
 #define DEFAULT_I2C_SDA        gpio_num_t::GPIO_NUM_21
 #define DEFAULT_I2C_SCL        gpio_num_t::GPIO_NUM_22
diff --git a/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_LoLin_D32_PRO.hpp b/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_LoLin_D32_PRO.hpp
index 542cf966e..88b380b13 100644
--- a/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_LoLin_D32_PRO.hpp
+++ b/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_LoLin_D32_PRO.hpp
@@ -28,7 +28,7 @@
 #define SUPPORT_SPI_OUTPUT
 #define DEFAULT_SPI_DATA_GPIO   gpio_num_t::GPIO_NUM_27
 #define DEFAULT_SPI_CLOCK_GPIO  gpio_num_t::GPIO_NUM_32
-#define DEFAULT_SPI_DEVICE      HSPI_HOST
+#define DEFAULT_SPI_DEVICE      VSPI_HOST
 
 #define DEFAULT_I2C_SDA         gpio_num_t::GPIO_NUM_3
 #define DEFAULT_I2C_SCL         gpio_num_t::GPIO_NUM_5
diff --git a/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_MH_ET_LIVE_MiniKit.hpp b/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_MH_ET_LIVE_MiniKit.hpp
index bbd7eb69c..6812e4ce6 100644
--- a/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_MH_ET_LIVE_MiniKit.hpp
+++ b/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_MH_ET_LIVE_MiniKit.hpp
@@ -33,7 +33,7 @@
 #define SUPPORT_SPI_OUTPUT
 #define DEFAULT_SPI_DATA_GPIO  gpio_num_t::GPIO_NUM_16
 #define DEFAULT_SPI_CLOCK_GPIO gpio_num_t::GPIO_NUM_17
-#define DEFAULT_SPI_DEVICE     HSPI_HOST
+#define DEFAULT_SPI_DEVICE     VSPI_HOST
 
 #define DEFAULT_I2C_SDA         gpio_num_t::GPIO_NUM_21
 #define DEFAULT_I2C_SCL         gpio_num_t::GPIO_NUM_22
diff --git a/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_Tetra2go.hpp b/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_Tetra2go.hpp
index e236a8b0b..d42a5cc9e 100644
--- a/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_Tetra2go.hpp
+++ b/ESPixelStick/src/platformDefinitions/GPIO_Defs_ESP32_Tetra2go.hpp
@@ -28,7 +28,7 @@
 #define SUPPORT_SPI_OUTPUT
 #define DEFAULT_SPI_DATA_GPIO   gpio_num_t::GPIO_NUM_15
 #define DEFAULT_SPI_CLOCK_GPIO  gpio_num_t::GPIO_NUM_25
-#define DEFAULT_SPI_DEVICE      HSPI_HOST
+#define DEFAULT_SPI_DEVICE      VSPI_HOST
 
 #define DEFAULT_I2C_SDA         gpio_num_t::GPIO_NUM_21
 #define DEFAULT_I2C_SCL         gpio_num_t::GPIO_NUM_22
diff --git a/platformio.ini b/platformio.ini
index b8312ba18..f343a7b7c 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -31,13 +31,20 @@ lib_deps =
     https://github.com/MartinMueller2003/Artnet
     https://github.com/MartinMueller2003/Espalexa           ; pull latest
     https://github.com/PaulStoffregen/Time
-    https://github.com/greiman/SdFat
+    https://github.com/greiman/SdFat @ 2.2.3
     https://github.com/MartinMueller2003/SimpleFTPServer
 extra_scripts =
     .scripts/download_fs.py
     .scripts/CopyTargets.py
     pre:.scripts/pio-version.py
 build_flags =
+;    -D ENABLE_DEDICATED_SPI=1 ; instruct SdFat to take ownership of the spi device
+    -D SDFAT_FILE_TYPE=3 ; SdFat full support
+    -D USE_LONG_FILE_NAMES=1 ; SdFat
+    -D MAINTAIN_FREE_CLUSTER_COUNT=1 ; SdFat
+    -D CHECK_FLASH_PROGRAMMING=0 ; SdFat
+    -D INCLUDE_SDIOS=1 ; SdFat
+;    -D USE_DBG_MACROS=2 ; SdFat
     -D SUPPORT_FTP
 ;    -D FTP_SERVER_DEBUG
 ;    -D FTP_ADDITIONAL_DEBUG