Diff: main.cpp

Revision:

0:27b9f229cbaf

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Dec 29 04:13:19 2019 +0000
@@ -0,0 +1,73 @@
+/*
+ * Mbed Application program
+ *  UART MP3 Voice Module with 8MB Flash Memory / DFR0534
+ *
+ * Copyright (c) 2019 Kenji Arai / JH1PJL
+ *  http://www.page.sannet.ne.jp/kenjia/index.html
+ *  https://os.mbed.com/users/kenjiArai/
+ *      Created:    December  27th, 2019
+ *      Revised:    December  29th, 2019
+ */
+
+/*
+    Reference information:
+        http://akizukidenshi.com/catalog/g/gM-13708/
+        https://wiki.dfrobot.com/Voice_Module_SKU__DFR0534
+    
+    Tested on
+        Nucleo-F446RE
+ */
+
+//  Include --------------------------------------------------------------------
+#include    "mbed.h"
+#include    "drf0534.h"
+
+//  Definition -----------------------------------------------------------------
+#define USE_VOL     1
+
+//  Constructor ----------------------------------------------------------------
+Serial  pc(USBTX, USBRX);
+DFR0534 mp3(PA_0, PA_1, PA_4);  // tx, rx, busy
+#if USE_VOL
+AnalogIn pot(A5);
+#endif
+
+//  RAM ------------------------------------------------------------------------
+char name_buf[32];
+
+//  ROM / Constant data --------------------------------------------------------
+
+//  Function prototypes --------------------------------------------------------
+
+//------------------------------------------------------------------------------
+//  Control Program
+//------------------------------------------------------------------------------
+int main()
+{
+    pc.printf("Start DRF0534 UART MP3 Voice Module\r\n");
+    // Set Volume
+    mp3.volume_setting(VOL_MAX / 2);
+    mp3.command(Increase_the_volume);   // another way
+    // Check total MP3 files
+    uint32_t num = mp3.total_num_of_audio();
+    pc.printf("Number of audio source = %u\r\n", num);
+    // Try specific MP3
+    mp3.play_one(2);
+    while(true) {
+        for (uint32_t i = 1; i < num + 1; i++) {
+#if USE_VOL
+            float an = pot.read();
+            an *= VOL_MAX;
+            mp3.volume_setting((uint8_t)an);
+            pc.printf("VOL = %3.0f, ", an);   // 0 to 30(VOL_MAX)
+#endif
+            // play one track
+            mp3.play_one(i);
+            // get file name
+            mp3.get_file_name(name_buf);
+            pc.printf("Current # of audio = %u, ", mp3.current_num_of_audio());
+            pc.printf("File name = %s, ", name_buf);
+            pc.printf("playing time = %d [sec]\r\n", mp3.get_play_time());
+        }
+    }
+}