From 6111ae20183ccd5283a4528b51dc7eec096d90f7 Mon Sep 17 00:00:00 2001
From: redpanther <redpanther@spooky-online.de>
Date: Thu, 23 Feb 2017 09:17:45 +0100
Subject: [PATCH] add function to count folders on current device

---
 DFRobotDFPlayerMini.cpp | 10 ++++++++++
 DFRobotDFPlayerMini.h   |  2 ++
 2 files changed, 12 insertions(+)

diff --git a/DFRobotDFPlayerMini.cpp b/DFRobotDFPlayerMini.cpp
index 1fea3dc..207be38 100644
--- a/DFRobotDFPlayerMini.cpp
+++ b/DFRobotDFPlayerMini.cpp
@@ -458,6 +458,16 @@ int DFRobotDFPlayerMini::readFileCountsInFolder(int folderNumber){
   }
 }
 
+int DFRobotDFPlayerMini::readFolderCounts(){
+  sendStack(0x4F);
+  if (waitAvailable()) {
+    return read();
+  }
+  else{
+    return -1;
+  }
+}
+
 int DFRobotDFPlayerMini::readFileCounts(){
   readFileCounts(DFPLAYER_DEVICE_SD);
 }
diff --git a/DFRobotDFPlayerMini.h b/DFRobotDFPlayerMini.h
index 897db0e..825e8dd 100644
--- a/DFRobotDFPlayerMini.h
+++ b/DFRobotDFPlayerMini.h
@@ -186,6 +186,8 @@ class DFRobotDFPlayerMini {
   int readFileCountsInFolder(int folderNumber);
   
   int readFileCounts();
+
+  int readFolderCounts();
   
   int readCurrentFileNumber();