diff --git a/libraries/SD/examples/SD_Test/SD_Test.ino b/libraries/SD/examples/SD_Test/SD_Test.ino
index 8084ee17dae..a7de5ca24ce 100644
--- a/libraries/SD/examples/SD_Test/SD_Test.ino
+++ b/libraries/SD/examples/SD_Test/SD_Test.ino
@@ -1,21 +1,56 @@
/*
- * Connect the SD card to the following pins:
+ * pin 1 - not used | Micro SD card |
+ * pin 2 - CS (SS) | /
+ * pin 3 - DI (MOSI) | |__
+ * pin 4 - VDD (3.3V) | |
+ * pin 5 - SCK (SCLK) | 8 7 6 5 4 3 2 1 /
+ * pin 6 - VSS (GND) | ▄ ▄ ▄ ▄ ▄ ▄ ▄ ▄ /
+ * pin 7 - DO (MISO) | ▀ ▀ █ ▀ █ ▀ ▀ ▀ |
+ * pin 8 - not used |_________________|
+ * ║ ║ ║ ║ ║ ║ ║ ║
+ * ╔═══════╝ ║ ║ ║ ║ ║ ║ ╚═════════╗
+ * ║ ║ ║ ║ ║ ║ ╚══════╗ ║
+ * ║ ╔═════╝ ║ ║ ║ ╚═════╗ ║ ║
+ * Connections for ║ ║ ╔═══╩═║═║═══╗ ║ ║ ║
+ * full-sized ║ ║ ║ ╔═╝ ║ ║ ║ ║ ║
+ * SD card ║ ║ ║ ║ ║ ║ ║ ║ ║
+ * Pin name | - DO VSS SCK VDD VSS DI CS - |
+ * SD pin number | 8 7 6 5 4 3 2 1 9 /
+ * | █/
+ * |__▍___▊___█___█___█___█___█___█___/
*
- * SD Card | ESP32
- * D2 -
- * D3 SS
- * CMD MOSI
- * VSS GND
- * VDD 3.3V
- * CLK SCK
- * VSS GND
- * D0 MISO
- * D1 -
+ * Note: that SPI pins can be configured by using `SPI.begin(sck, miso, mosi, cs);`
+ * alternatively you can change only the CS pin with `SD.begin(CSpin)`
+ *
+ * +--------------+---------+-------+----------+----------+----------+
+ * | SPI Pin Name | ESP8266 | ESP32 | ESP32-S2 | ESP32-C3 | ESP32-S3 |
+ * +==============+=========+=======+==========+==========+==========+
+ * | CS (SS) | GPIO15 | GPIO5 | GPIO5 | GPIO13 | GPIO13 |
+ * +--------------+---------+-------+----------+----------+----------+
+ * | DI (MOSI) | GPIO13 | GPIO23| GPIO24 | GPIO14 | GPIO14 |
+ * +--------------+---------+-------+----------+----------+----------+
+ * | DO (MISO) | GPIO12 | GPIO19| GPIO25 | GPIO15 | GPIO15 |
+ * +--------------+---------+-------+----------+----------+----------+
+ * | SCK (SCLK) | GPIO14 | GPIO18| GPIO19 | GPIO16 | GPIO16 |
+ * +--------------+---------+-------+----------+----------+----------+
+ *
+ * For more info see file README.md in this library or on URL:
+ * https://github.com/espressif/arduino-esp32/tree/master/libraries/SD
*/
+
#include "FS.h"
#include "SD.h"
#include "SPI.h"
+/*
+Uncomment and setup pins you want to use for the SPI communication
+#define REASSIGN_PINS
+int sck = -1;
+int miso = -1;
+int mosi = -1;
+int cs = -1;
+*/
+
void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
Serial.printf("Listing directory: %s\n", dirname);
@@ -175,6 +210,12 @@ void testFileIO(fs::FS &fs, const char * path){
void setup(){
Serial.begin(115200);
+ while(!Serial) { delay (10); }
+
+#ifdef REASSIGN_PINS
+ SPI.begin(sck, miso, mosi, cs);
+#endif
+ //if(!SD.begin(cs)){ //Change to this function to manually change CS pin
if(!SD.begin()){
Serial.println("Card Mount Failed");
return;
diff --git a/libraries/SD/examples/SD_time/SD_time.ino b/libraries/SD/examples/SD_time/SD_time.ino
index cef80dd600c..8219942193e 100644
--- a/libraries/SD/examples/SD_time/SD_time.ino
+++ b/libraries/SD/examples/SD_time/SD_time.ino
@@ -1,16 +1,41 @@
/*
- * Connect the SD card to the following pins:
+ * pin 1 - not used | Micro SD card |
+ * pin 2 - CS (SS) | /
+ * pin 3 - DI (MOSI) | |__
+ * pin 4 - VDD (3.3V) | |
+ * pin 5 - SCK (SCLK) | 8 7 6 5 4 3 2 1 /
+ * pin 6 - VSS (GND) | ▄ ▄ ▄ ▄ ▄ ▄ ▄ ▄ /
+ * pin 7 - DO (MISO) | ▀ ▀ █ ▀ █ ▀ ▀ ▀ |
+ * pin 8 - not used |_________________|
+ * ║ ║ ║ ║ ║ ║ ║ ║
+ * ╔═══════╝ ║ ║ ║ ║ ║ ║ ╚═════════╗
+ * ║ ║ ║ ║ ║ ║ ╚══════╗ ║
+ * ║ ╔═════╝ ║ ║ ║ ╚═════╗ ║ ║
+ * Connections for ║ ║ ╔═══╩═║═║═══╗ ║ ║ ║
+ * full-sized ║ ║ ║ ╔═╝ ║ ║ ║ ║ ║
+ * SD card ║ ║ ║ ║ ║ ║ ║ ║ ║
+ * Pin name | - DO VSS SCK VDD VSS DI CS - |
+ * SD pin number | 8 7 6 5 4 3 2 1 9 /
+ * | █/
+ * |__▍___▊___█___█___█___█___█___█___/
*
- * SD Card | ESP32
- * D2 -
- * D3 SS
- * CMD MOSI
- * VSS GND
- * VDD 3.3V
- * CLK SCK
- * VSS GND
- * D0 MISO
- * D1 -
+ * Note: that SPI pins can be configured by using `SPI.begin(sck, miso, mosi, cs);`
+ * alternatively you can change only the CS pin with `SD.begin(CSpin)`
+ *
+ * +--------------+---------+-------+----------+----------+----------+
+ * | SPI Pin Name | ESP8266 | ESP32 | ESP32-S2 | ESP32-C3 | ESP32-S3 |
+ * +==============+=========+=======+==========+==========+==========+
+ * | CS (SS) | GPIO15 | GPIO5 | GPIO5 | GPIO13 | GPIO13 |
+ * +--------------+---------+-------+----------+----------+----------+
+ * | DI (MOSI) | GPIO13 | GPIO23| GPIO24 | GPIO14 | GPIO14 |
+ * +--------------+---------+-------+----------+----------+----------+
+ * | DO (MISO) | GPIO12 | GPIO19| GPIO25 | GPIO15 | GPIO15 |
+ * +--------------+---------+-------+----------+----------+----------+
+ * | SCK (SCLK) | GPIO14 | GPIO18| GPIO19 | GPIO16 | GPIO16 |
+ * +--------------+---------+-------+----------+----------+----------+
+ *
+ * For more info see file README.md in this library or on URL:
+ * https://github.com/espressif/arduino-esp32/tree/master/libraries/SD
*/
#include "FS.h"
@@ -25,6 +50,15 @@ const char* password = "your-password";
long timezone = 1;
byte daysavetime = 1;
+/*
+Uncomment and setup pins you want to use for the SPI communication
+#define REASSIGN_PINS
+int sck = -1;
+int miso = -1;
+int mosi = -1;
+int cs = -1;
+*/
+
void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
Serial.printf("Listing directory: %s\n", dirname);
@@ -172,6 +206,10 @@ void setup(){
Serial.printf("\nNow is : %d-%02d-%02d %02d:%02d:%02d\n",(tmstruct.tm_year)+1900,( tmstruct.tm_mon)+1, tmstruct.tm_mday,tmstruct.tm_hour , tmstruct.tm_min, tmstruct.tm_sec);
Serial.println("");
+#ifdef REASSIGN_PINS
+ SPI.begin(sck, miso, mosi, cs);
+#endif
+ //if(!SD.begin(cs)){ //Change to this function to manually change CS pin
if(!SD.begin()){
Serial.println("Card Mount Failed");
return;
diff --git a/libraries/SD_MMC/examples/SDMMC_Test/SDMMC_Test.ino b/libraries/SD_MMC/examples/SDMMC_Test/SDMMC_Test.ino
index 024ea4bfdea..8e3e0f31a55 100644
--- a/libraries/SD_MMC/examples/SDMMC_Test/SDMMC_Test.ino
+++ b/libraries/SD_MMC/examples/SDMMC_Test/SDMMC_Test.ino
@@ -1,21 +1,59 @@
/*
- * Connect the SD card to the following pins:
+ * pin 1 - D2 | Micro SD card |
+ * pin 2 - D3 | /
+ * pin 3 - CMD | |__
+ * pin 4 - VDD (3.3V) | |
+ * pin 5 - CLK | 8 7 6 5 4 3 2 1 /
+ * pin 6 - VSS (GND) | ▄ ▄ ▄ ▄ ▄ ▄ ▄ ▄ /
+ * pin 7 - D0 | ▀ ▀ █ ▀ █ ▀ ▀ ▀ |
+ * pin 8 - D1 |_________________|
+ * ║ ║ ║ ║ ║ ║ ║ ║
+ * ╔═══════╝ ║ ║ ║ ║ ║ ║ ╚═════════╗
+ * ║ ║ ║ ║ ║ ║ ╚══════╗ ║
+ * ║ ╔═════╝ ║ ║ ║ ╚═════╗ ║ ║
+ * Connections for ║ ║ ╔═══╩═║═║═══╗ ║ ║ ║
+ * full-sized ║ ║ ║ ╔═╝ ║ ║ ║ ║ ║
+ * SD card ║ ║ ║ ║ ║ ║ ║ ║ ║
+ * ESP32-S3 DevKit | 21 47 GND 39 3V3 GND 40 41 42 |
+ * ESP32-S3-USB-OTG | 38 37 GND 36 3V3 GND 35 34 33 |
+ * ESP32 | 4 2 GND 14 3V3 GND 15 13 12 |
+ * Pin name | D1 D0 VSS CLK VDD VSS CMD D3 D2 |
+ * SD pin number | 8 7 6 5 4 3 2 1 9 /
+ * | █/
+ * |__▍___▊___█___█___█___█___█___█___/
+ * WARNING: ALL data pins must be pulled up to 3.3V with external 10k Ohm resistor!
+ * Note to ESP32 pin 2 (D0) : add 1K pull up after flashing
*
- * SD Card | ESP32
- * D2 12
- * D3 13
- * CMD 15
- * VSS GND
- * VDD 3.3V
- * CLK 14
- * VSS GND
- * D0 2 (add 1K pull up after flashing)
- * D1 4
+ * For more info see file README.md in this library or on URL:
+ * https://github.com/espressif/arduino-esp32/tree/master/libraries/SD_MMC
*/
#include "FS.h"
#include "SD_MMC.h"
+// Default pins for ESP-S3
+// Warning: ESP32-S3-WROOM-2 is using most of the default GPIOs (33-37) to interface with on-board OPI flash.
+// If the SD_MMC is initialized with default pins it will result in rebooting loop - please
+// reassign the pins elsewhere using the mentioned command `setPins`.
+// Note: ESP32-S3-WROOM-1 does not have GPIO 33 and 34 broken out.
+// Note: The board SP32-S3-USB-OTG has predefined default pins and the following definitions with the setPins() call will not be compiled.
+// Note: Pins in this definition block are ordered from top down in order in which they are on the full-sized SD card
+// from left to right when facing the pins down (when connected to a breadboard)
+
+#if defined(SOC_SDMMC_USE_GPIO_MATRIX) && not defined(BOARD_HAS_SDMMC)
+ int d1 = 21; // SD pin 8 - add 10k Pullup to 3.3V if using 4-bit mode (use_1_bit_mode = false)
+ int d0 = 47; // SD pin 7 - add 10k Pullup
+ // GND pin - SD pin 6
+ int clk = 39; // SD pin 5 - add 10k Pullup
+ // 3.3V pin - SD pin 4
+ // GND pin - SD pin 3
+ int cmd = 40; // SD pin 2 - add 10k Pullup
+ int d3 = 41; // SD pin 1 - add 10k Pullup to card's pin even when using 1-bit mode
+ int d2 = 42; // SD pin 9 - add 10k Pullup to 3.3V if using 4-bit mode (use_1_bit_mode = false)
+#endif
+
+bool use_1_bit_mode = false; // Change the value to `true` to use 1-bit mode instead of the 4-bit mode
+
void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
Serial.printf("Listing directory: %s\n", dirname);
@@ -172,8 +210,34 @@ void testFileIO(fs::FS &fs, const char * path){
void setup(){
Serial.begin(115200);
- if(!SD_MMC.begin()){
- Serial.println("Card Mount Failed");
+ while(!Serial) { delay(10); }
+ Serial.println("SDMMC_Test.ino starting!");
+
+ // If you are using any other ESP32-S3 board than ESP32-S3-USB-OTG which has preset default pins, you will
+ // need to specify the pins with the following example of SD_MMC.setPins()
+ // If you want to use only 1-bit mode, you can use the line with only one data pin (d0) begin changed.
+ // Please note that ESP32 does not allow pin change and will always fail.
+#if defined(SOC_SDMMC_USE_GPIO_MATRIX) && not defined(BOARD_HAS_SDMMC)
+ //if(! SD_MMC.setPins(clk, cmd, d0)){ // 1-bit line version
+ if(! SD_MMC.setPins(clk, cmd, d0, d1, d2, d3)){ // 4-bit line version
+ Serial.println("Pin change failed!");
+ return;
+ }
+#endif
+
+ if(use_1_bit_mode){
+ Serial.printf("Begin in 1-bit mode; pins: CLK=%d, CMD=%d, D0=%d\n", SD_MMC.getClkPin(), SD_MMC.getCmdPin(), SD_MMC.getD0Pin());
+ }else{
+ Serial.printf("Begin in 4-bit mode; pins: CLK=%d, CMD=%d, D0=%d, D1=%d, D2=%d, D3=%d\n", SD_MMC.getClkPin(), SD_MMC.getCmdPin(), SD_MMC.getD0Pin(), SD_MMC.getD1Pin(), SD_MMC.getD2Pin(), SD_MMC.getD3Pin());
+ }
+
+ if(!SD_MMC.begin("/sdcard", use_1_bit_mode)){
+ Serial.println("Card Mount Failed.");
+ Serial.println("Increase log level to see more info: Tools > Core Debug Level > Verbose");
+ Serial.println("Make sure that all data pins have 10 kOhm pull-up resistor");
+#ifdef SOC_SDMMC_USE_GPIO_MATRIX
+ Serial.println("Make sure that when using generic ESP32-S3 board the pins are setup using SD_MMC.setPins()");
+#endif
return;
}
uint8_t cardType = SD_MMC.cardType();
diff --git a/libraries/SD_MMC/examples/SDMMC_time/SDMMC_time.ino b/libraries/SD_MMC/examples/SDMMC_time/SDMMC_time.ino
index 4472f8c6c37..a416a2a723f 100644
--- a/libraries/SD_MMC/examples/SDMMC_time/SDMMC_time.ino
+++ b/libraries/SD_MMC/examples/SDMMC_time/SDMMC_time.ino
@@ -1,16 +1,31 @@
/*
- * Connect the SD card to the following pins:
+ * pin 1 - D2 | Micro SD card |
+ * pin 2 - D3 | /
+ * pin 3 - CMD | |__
+ * pin 4 - VDD (3.3V) | |
+ * pin 5 - CLK | 8 7 6 5 4 3 2 1 /
+ * pin 6 - VSS (GND) | ▄ ▄ ▄ ▄ ▄ ▄ ▄ ▄ /
+ * pin 7 - D0 | ▀ ▀ █ ▀ █ ▀ ▀ ▀ |
+ * pin 8 - D1 |_________________|
+ * ║ ║ ║ ║ ║ ║ ║ ║
+ * ╔═══════╝ ║ ║ ║ ║ ║ ║ ╚═════════╗
+ * ║ ║ ║ ║ ║ ║ ╚══════╗ ║
+ * ║ ╔═════╝ ║ ║ ║ ╚═════╗ ║ ║
+ * Connections for ║ ║ ╔═══╩═║═║═══╗ ║ ║ ║
+ * full-sized ║ ║ ║ ╔═╝ ║ ║ ║ ║ ║
+ * SD card ║ ║ ║ ║ ║ ║ ║ ║ ║
+ * ESP32-S3 DevKit | 21 47 GND 39 3V3 GND 40 41 42 |
+ * ESP32-S3-USB-OTG | 38 37 GND 36 3V3 GND 35 34 33 |
+ * ESP32 | 4 2 GND 14 3V3 GND 15 13 12 |
+ * Pin name | D1 D0 VSS CLK VDD VSS CMD D3 D2 |
+ * SD pin number | 8 7 6 5 4 3 2 1 9 /
+ * | █/
+ * |__▍___▊___█___█___█___█___█___█___/
+ * WARNING: ALL data pins must be pulled up to 3.3V with external 10k Ohm resistor!
+ * Note to ESP32 pin 2 (D0) : add 1K pull up after flashing
*
- * SD Card | ESP32
- * D2 -
- * D3 SS
- * CMD MOSI
- * VSS GND
- * VDD 3.3V
- * CLK SCK
- * VSS GND
- * D0 MISO
- * D1 -
+ * For more info see file README.md in this library or on URL:
+ * https://github.com/espressif/arduino-esp32/tree/master/libraries/SD_MMC
*/
#include "FS.h"
@@ -19,12 +34,35 @@
#include <time.h>
#include <WiFi.h>
-const char* ssid = "your-ssid";
-const char* password = "your-password";
+const char* ssid = "Viks";
+const char* password = "Mordornumber1";
long timezone = 1;
byte daysavetime = 1;
+// Default pins for ESP-S3
+// Warning: ESP32-S3-WROOM-2 is using most of the default GPIOs (33-37) to interface with on-board OPI flash.
+// If the SD_MMC is initialized with default pins it will result in rebooting loop - please
+// reassign the pins elsewhere using the mentioned command `setPins`.
+// Note: ESP32-S3-WROOM-1 does not have GPIO 33 and 34 broken out.
+// Note: The board SP32-S3-USB-OTG has predefined default pins and the following definitions with the setPins() call will not be compiled.
+// Note: Pins in this definition block are ordered from top down in order in which they are on the full-sized SD card
+// from left to right when facing the pins down (when connected to a breadboard)
+
+#if defined(SOC_SDMMC_USE_GPIO_MATRIX) && not defined(BOARD_HAS_SDMMC)
+ int d1 = 21; // SD pin 8 - add 10k Pullup to 3.3V if using 4-bit mode (use_1_bit_mode = false)
+ int d0 = 47; // SD pin 7 - add 10k Pullup
+ // GND pin - SD pin 6
+ int clk = 39; // SD pin 5 - add 10k Pullup
+ // 3.3V pin - SD pin 4
+ // GND pin - SD pin 3
+ int cmd = 40; // SD pin 2 - add 10k Pullup
+ int d3 = 41; // SD pin 1 - add 10k Pullup to card's pin even when using 1-bit mode
+ int d2 = 42; // SD pin 9 - add 10k Pullup to 3.3V if using 4-bit mode (use_1_bit_mode = false)
+#endif
+
+bool use_1_bit_mode = false; // Change the value to `true` to use 1-bit mode instead of the 4-bit mode
+
void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
Serial.printf("Listing directory: %s\n", dirname);
@@ -164,16 +202,39 @@ void setup(){
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
Serial.println("Contacting Time Server");
- configTime(3600*timezone, daysavetime*3600, "time.nist.gov", "0.pool.ntp.org", "1.pool.ntp.org");
- struct tm tmstruct ;
+ configTime(3600*timezone, daysavetime*3600, "time.nist.gov", "0.pool.ntp.org", "1.pool.ntp.org");
+ struct tm tmstruct ;
delay(2000);
tmstruct.tm_year = 0;
getLocalTime(&tmstruct, 5000);
- Serial.printf("\nNow is : %d-%02d-%02d %02d:%02d:%02d\n",(tmstruct.tm_year)+1900,( tmstruct.tm_mon)+1, tmstruct.tm_mday,tmstruct.tm_hour , tmstruct.tm_min, tmstruct.tm_sec);
+ Serial.printf("\nNow is : %d-%02d-%02d %02d:%02d:%02d\n",(tmstruct.tm_year)+1900,( tmstruct.tm_mon)+1, tmstruct.tm_mday,tmstruct.tm_hour , tmstruct.tm_min, tmstruct.tm_sec);
Serial.println("");
- if(!SD_MMC.begin()){
- Serial.println("Card Mount Failed");
+ // If you are using any other ESP32-S3 board than ESP32-S3-USB-OTG which has preset default pins, you will
+ // need to specify the pins with the following example of SD_MMC.setPins()
+ // If you want to use only 1-bit mode, you can use the line with only one data pin (d0) begin changed.
+ // Please note that ESP32 does not allow pin change and will always fail.
+#if defined(SOC_SDMMC_USE_GPIO_MATRIX) && not defined(BOARD_HAS_SDMMC)
+ //if(! SD_MMC.setPins(clk, cmd, d0)){ // 1-bit line version
+ if(! SD_MMC.setPins(clk, cmd, d0, d1, d2, d3)){ // 4-bit line version
+ Serial.println("Pin change failed!");
+ return;
+ }
+#endif
+
+ if(use_1_bit_mode){
+ Serial.printf("Begin in 1-bit mode; pins: CLK=%d, CMD=%d, D0=%d\n", SD_MMC.getClkPin(), SD_MMC.getCmdPin(), SD_MMC.getD0Pin());
+ }else{
+ Serial.printf("Begin in 4-bit mode; pins: CLK=%d, CMD=%d, D0=%d, D1=%d, D2=%d, D3=%d\n", SD_MMC.getClkPin(), SD_MMC.getCmdPin(), SD_MMC.getD0Pin(), SD_MMC.getD1Pin(), SD_MMC.getD2Pin(), SD_MMC.getD3Pin());
+ }
+
+ if(!SD_MMC.begin("/sdcard", use_1_bit_mode)){
+ Serial.println("Card Mount Failed.");
+ Serial.println("Increase log level to see more info: Tools > Core Debug Level > Verbose");
+ Serial.println("Make sure that all data pins have 10 kOhm pull-up resistor");
+#ifdef SOC_SDMMC_USE_GPIO_MATRIX
+ Serial.println("Make sure that when using generic ESP32-S3 board the pins are setup using SD_MMC.setPins()");
+#endif
return;
}
uint8_t cardType = SD_MMC.cardType();
@@ -203,7 +264,7 @@ void setup(){
deleteFile(SD_MMC, "/hello.txt");
writeFile(SD_MMC, "/hello.txt", "Hello ");
appendFile(SD_MMC, "/hello.txt", "World!\n");
- listDir(SD_MMC, "/", 0);
+ listDir(SD_MMC, "/", 0);
}
void loop(){
diff --git a/libraries/SD_MMC/src/SD_MMC.cpp b/libraries/SD_MMC/src/SD_MMC.cpp
index 83cf9aa0dd1..e421c55305e 100644
--- a/libraries/SD_MMC/src/SD_MMC.cpp
+++ b/libraries/SD_MMC/src/SD_MMC.cpp
@@ -84,6 +84,60 @@ bool SDMMCFS::setPins(int clk, int cmd, int d0, int d1, int d2, int d3)
#endif
}
+int SDMMCFS::getClkPin()
+{
+#ifdef SOC_SDMMC_USE_GPIO_MATRIX
+ return _pin_clk;
+#elif CONFIG_IDF_TARGET_ESP32
+ return SDMMC_SLOT1_IOMUX_PIN_NUM_CLK;
+#endif
+}
+
+int SDMMCFS::getCmdPin()
+{
+#ifdef SOC_SDMMC_USE_GPIO_MATRIX
+ return _pin_cmd;
+#elif CONFIG_IDF_TARGET_ESP32
+ return SDMMC_SLOT1_IOMUX_PIN_NUM_CMD;
+#endif
+}
+
+int SDMMCFS::getD0Pin()
+{
+#ifdef SOC_SDMMC_USE_GPIO_MATRIX
+ return _pin_d0;
+#elif CONFIG_IDF_TARGET_ESP32
+ return SDMMC_SLOT1_IOMUX_PIN_NUM_D0;
+#endif
+}
+
+int SDMMCFS::getD1Pin()
+{
+#ifdef SOC_SDMMC_USE_GPIO_MATRIX
+ return _pin_d1;
+#elif CONFIG_IDF_TARGET_ESP32
+ return SDMMC_SLOT1_IOMUX_PIN_NUM_D1;
+#endif
+}
+
+int SDMMCFS::getD2Pin()
+{
+#ifdef SOC_SDMMC_USE_GPIO_MATRIX
+ return _pin_d2;
+#elif CONFIG_IDF_TARGET_ESP32
+ return SDMMC_SLOT1_IOMUX_PIN_NUM_D2;
+#endif
+}
+
+int SDMMCFS::getD3Pin()
+{
+#ifdef SOC_SDMMC_USE_GPIO_MATRIX
+ return _pin_d3;
+#elif CONFIG_IDF_TARGET_ESP32
+ return SDMMC_SLOT1_IOMUX_PIN_NUM_D3;
+#endif
+}
+
bool SDMMCFS::begin(const char * mountpoint, bool mode1bit, bool format_if_mount_failed, int sdmmc_frequency, uint8_t maxOpenFiles)
{
if(_card) {
diff --git a/libraries/SD_MMC/src/SD_MMC.h b/libraries/SD_MMC/src/SD_MMC.h
index ffbc3b8f964..0ee5932fc81 100644
--- a/libraries/SD_MMC/src/SD_MMC.h
+++ b/libraries/SD_MMC/src/SD_MMC.h
@@ -50,6 +50,12 @@ class SDMMCFS : public FS
SDMMCFS(FSImplPtr impl);
bool setPins(int clk, int cmd, int d0);
bool setPins(int clk, int cmd, int d0, int d1, int d2, int d3);
+ int getClkPin();
+ int getCmdPin();
+ int getD0Pin();
+ int getD1Pin();
+ int getD2Pin();
+ int getD3Pin();
bool begin(const char * mountpoint="/sdcard", bool mode1bit=false, bool format_if_mount_failed=false, int sdmmc_frequency=BOARD_MAX_SDMMC_FREQ, uint8_t maxOpenFiles = 5);
void end();
sdcard_type_t cardType();