Initial commit

Author: marcel-licence

examples/ml_audio_test/README.md

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+<h1 align="center">ml_audio_test</h1>
+<h3 align="center">Test project to test the DAC via I2S</h3>  
+
+More information is comming soon...
+
+# Support & Donations
+
+If you appreciate the work done on this project and would like to support its development, I would be more than happy to accept donations!
+
+For more information on how to donate, please send an email to:
+
+📧 **[email protected]**
+
+Thank you for your support!

examples/ml_audio_test/ml_audio_test.ino

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+/*
+ * Copyright (c) 2025 Marcel Licence
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Dieses Programm ist Freie Software: Sie k�nnen es unter den Bedingungen
+ * der GNU General Public License, wie von der Free Software Foundation,
+ * Version 3 der Lizenz oder (nach Ihrer Wahl) jeder neueren
+ * ver�ffentlichten Version, weiter verteilen und/oder modifizieren.
+ *
+ * Dieses Programm wird in der Hoffnung bereitgestellt, dass es n�tzlich sein wird, jedoch
+ * OHNE JEDE GEW�HR,; sogar ohne die implizite
+ * Gew�hr der MARKTF�HIGKEIT oder EIGNUNG F�R EINEN BESTIMMTEN ZWECK.
+ * Siehe die GNU General Public License f�r weitere Einzelheiten.
+ *
+ * Sie sollten eine Kopie der GNU General Public License zusammen mit diesem
+ * Programm erhalten haben. Wenn nicht, siehe <https://www.gnu.org/licenses/>.
+ */
+
+/**
+ * @file ml_audio_test.ino
+ * @author Marcel Licence
+ * @date 14.01.2025
+ *
+ * @brief   This is simple testproject to check the audio output using a DAC
+ *          connected via I2S
+ */
+#define OUTPUT_SAW_TEST
+
+
+/*
+ * Configuration for
+ * Board: "ESP32 Dev Module" or similar
+ */
+#ifdef ESP32
+
+//#define BOARD_ML_V1 /* activate this when using the ML PCB V1 */
+#define BOARD_ML_SYNTH_V2 /* activate this when using the ML PCB V1 */
+//#define BOARD_ESP32_AUDIO_KIT_AC101 /* activate this when using the ESP32 Audio Kit v2.2 with the AC101 codec */
+//#define BOARD_ESP32_AUDIO_KIT_ES8388 /* activate this when using the ESP32 Audio Kit v2.2 with the ES8388 codec */
+//#define BOARD_ESP32_DOIT /* activate this when using the DOIT ESP32 DEVKIT V1 board */
+//#define BOARD_WEMOS_D1_MINI_ESP32
+
+/*
+ * include the board configuration
+ * there you will find the most hardware depending pin settings
+ */
+#include <ml_boards.h> /* requires the ML_Synth library:  https://github.com/marcel-licence/ML_SynthTools */
+
+#define SAMPLE_RATE 44100
+#define SAMPLE_SIZE_16BIT
+#define SAMPLE_BUFFER_SIZE  48
+
+#endif /* ESP32 */
+
+
+#define ML_SYNTH_INLINE_DECLARATION
+#include <ml_inline.h>
+#undef ML_SYNTH_INLINE_DECLARATION
+
+#define ML_SYNTH_INLINE_DEFINITION
+#include <ml_inline.h>
+#undef ML_SYNTH_INLINE_DEFINITION
+
+void setup()
+{
+    /*
+     * this code runs once
+     */
+    Serial.begin(115200);
+
+    Serial.printf("Initialize Audio Interface\n");
+    Audio_Setup();
+}
+
+void loop()
+{
+    float left[SAMPLE_BUFFER_SIZE], right[SAMPLE_BUFFER_SIZE];
+    /*
+     * Output the audio
+     */
+    Audio_Output(left, right);
+}