From 8704331b3a8ca874499cd190638970c4fda3aafe Mon Sep 17 00:00:00 2001
From: mohamadkhani <mohamadkhani14@gmail.com>
Date: Tue, 26 Sep 2017 18:03:25 +0330
Subject: [PATCH 1/4] Add Ability to close spi SD card connection

---
 libraries/SD/src/utility/Sd2Card.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/libraries/SD/src/utility/Sd2Card.cpp b/libraries/SD/src/utility/Sd2Card.cpp
index 553bb9ba2a..5ceb530eca 100644
--- a/libraries/SD/src/utility/Sd2Card.cpp
+++ b/libraries/SD/src/utility/Sd2Card.cpp
@@ -350,6 +350,13 @@ uint8_t Sd2Card::init(uint8_t sckRateID, uint8_t chipSelectPin) {
   return false;
 }
 //------------------------------------------------------------------------------
+/**
+ * End SPI Connection
+ */
+void Sd2Card::end(){
+  SPI.end();
+}
+//------------------------------------------------------------------------------
 /**
  * Enable or disable partial block reads.
  *

From e2ac34d7b3af2922fd4ceb1ee99b6b88fc0b3c7f Mon Sep 17 00:00:00 2001
From: mohamadkhani <mohamadkhani14@gmail.com>
Date: Tue, 26 Sep 2017 18:04:49 +0330
Subject: [PATCH 2/4] Add Ability to close spi SD card connection

---
 libraries/SD/src/utility/Sd2Card.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libraries/SD/src/utility/Sd2Card.h b/libraries/SD/src/utility/Sd2Card.h
index c7e54f66b2..3c229f6b3b 100644
--- a/libraries/SD/src/utility/Sd2Card.h
+++ b/libraries/SD/src/utility/Sd2Card.h
@@ -200,6 +200,10 @@ class Sd2Card {
   }
   uint8_t init(uint8_t sckRateID, uint8_t chipSelectPin);
   #endif
+  /**
+   * End SPI Connection
+   */
+  void end();
   void partialBlockRead(uint8_t value);
   /** Returns the current value, true or false, for partial block read. */
   uint8_t partialBlockRead(void) const {return partialBlockRead_;}

From 3129ef1688f0dd33841fb1078c4b82f64041e903 Mon Sep 17 00:00:00 2001
From: mohamadkhani <mohamadkhani14@gmail.com>
Date: Tue, 26 Sep 2017 18:06:08 +0330
Subject: [PATCH 3/4] Add Ability to close SD card connection

---
 libraries/SD/src/SD.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libraries/SD/src/SD.h b/libraries/SD/src/SD.h
index 38ad793598..9d76299c20 100644
--- a/libraries/SD/src/SD.h
+++ b/libraries/SD/src/SD.h
@@ -88,7 +88,11 @@ class SDClass {
   // This needs to be called to set up the connection to the SD card
   // before other methods are used.
   boolean begin(uint8_t csPin = SD_CHIP_SELECT_PIN, uint32_t speed = SPI_HALF_SPEED);
-
+  
+  //Performs end The SD Card and close the spi connection
+  //and to able begin SD Card again without error
+  void end();
+ 
   // Open the specified file/directory with the supplied mode (e.g. read or
   // write, etc). Returns a File object for interacting with the file.
   // Note that currently only one file can be open at a time.

From a132f39ca58920b15f7845e2713c684408f22f22 Mon Sep 17 00:00:00 2001
From: mohamadkhani <mohamadkhani14@gmail.com>
Date: Tue, 26 Sep 2017 18:08:24 +0330
Subject: [PATCH 4/4] Update SD.cpp

---
 libraries/SD/src/SD.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/libraries/SD/src/SD.cpp b/libraries/SD/src/SD.cpp
index 9748130373..e4a2e78977 100644
--- a/libraries/SD/src/SD.cpp
+++ b/libraries/SD/src/SD.cpp
@@ -345,6 +345,18 @@ boolean SDClass::begin(uint8_t csPin, uint32_t speed) {
          root.openRoot(volume);
 }
 
+
+void SDClass::end() {
+   /*
+
+    Performs to end The SD Card and close the spi connection
+    and to able begin SD Card again without error
+
+   */
+  root.close();
+  card.end();
+}
+
 // this little helper is used to traverse paths
 SdFile SDClass::getParentDir(const char *filepath, int *index) {
   // get parent directory