API 31 / unzip sources

README.md

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+# Tuning Fork
+
+Inspired by [Metronome](https://github.com/panki27/Metronome)
+
+A tuning fork for the [Flipper Zero](https://flipperzero.one/) device.
+Allows to play different notes in different pitches.
+
+![screenshot](img/tuning_fork.gif)
+
+## Features
+- Tuning forks (440Hz, 432Hz, etc.)
+- Scientific pitch (..., 256Hz, 512Hz, 1024Hz, ...)
+- Guitar Standard (6 strings)
+- Guitar Drop D (6 strings)
+- Guitar D (6 strings)
+- Guitar Drop C (6 strings)
+- Guitar Standard (7 strings)
+- Bass Standard (4 strings)
+- Bass Standard Tenor (4 strings)
+- Bass Standard (5 strings)
+- Bass Standard Tenor (5 strings)
+- Bass Drop D (4 strings)
+- Bass D (4 strings)
+- Bass Drop A (5 strings)
+
+## Compiling
+
+```
+./fbt firmware_tuning_fork
+```

application.fam

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+App(
+    appid="tuning_fork",
+    name="Tuning Fork",
+    apptype=FlipperAppType.EXTERNAL,
+    entry_point="tuning_fork_app",
+    cdefines=["APP_TUNING_FORM"],
+    requires=[
+        "gui",
+    ],
+    fap_icon="tuning_fork_icon.png",
+    fap_category="Media_Extra",
+    stack_size=2 * 1024,
+    order=20,
+)

notes.h

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+#ifndef NOTES
+#define NOTES
+
+#define C0 16.35f
+#define Cs0 17.32f
+#define Db0 17.32f
+#define D0 18.35f
+#define Ds0 19.45f
+#define Eb0 19.45f
+#define E0 20.60f
+#define F0 21.83f
+#define Fs0 23.12f
+#define Gb0 23.12f
+#define G0 24.50f
+#define Gs0 25.96f
+#define Ab0 25.96f
+#define A0 27.50f
+#define As0 29.14f
+#define Bb0 29.14f
+#define B0 30.868f
+#define C1 32.70f
+#define Cs1 34.65f
+#define Db1 34.65f
+#define D1 36.71f
+#define Ds1 38.89f
+#define Eb1 38.89f
+#define E1 41.203f
+#define F1 43.65f
+#define Fs1 46.25f
+#define Gb1 46.25f
+#define G1 49.00f
+#define Gs1 51.91f
+#define Ab1 51.91f
+#define A1 55.00f
+#define As1 58.27f
+#define Bb1 58.27f
+#define B1 61.74f
+#define C2 65.41f
+#define Cs2 69.30f
+#define Db2 69.30f
+#define D2 73.416f
+#define Ds2 77.78f
+#define Eb2 77.78f
+#define E2 82.41f
+#define F2 87.31f
+#define Fs2 92.50f
+#define Gb2 92.50f
+#define G2 97.999f
+#define Gs2 103.83f
+#define Ab2 103.83f
+#define A2 110.00f
+#define As2 116.54f
+#define Bb2 116.54f
+#define B2 123.47f
+#define C3 130.813f
+#define Cs3 138.59f
+#define Db3 138.59f
+#define D3 146.83f
+#define Ds3 155.56f
+#define Eb3 155.56f
+#define E3 164.81f
+#define F3 174.61f
+#define Fs3 185.00f
+#define Gb3 185.00f
+#define G3 196.00f
+#define Gs3 207.65f
+#define Ab3 207.65f
+#define A3 220.00f
+#define As3 233.08f
+#define Bb3 233.08f
+#define B3 246.94f
+#define C4 261.63f
+#define Cs4 277.18f
+#define Db4 277.18f
+#define D4 293.66f
+#define Ds4 311.13f
+#define Eb4 311.13f
+#define E4 329.63f
+#define F4 349.23f
+#define Fs4 369.99f
+#define Gb4 369.99f
+#define G4 392.00f
+#define Gs4 415.30f
+#define Ab4 415.30f
+#define A4 440.00f
+#define As4 466.16f
+#define Bb4 466.16f
+#define B4 493.88f
+#define C5 523.25f
+#define Cs5 554.37f
+#define Db5 554.37f
+#define D5 587.33f
+#define Ds5 622.25f
+#define Eb5 622.25f
+#define E5 659.25f
+#define F5 698.46f
+#define Fs5 739.99f
+#define Gb5 739.99f
+#define G5 783.99f
+#define Gs5 830.61f
+#define Ab5 830.61f
+#define A5 880.00f
+#define As5 932.33f
+#define Bb5 932.33f
+#define B5 987.77f
+#define C6 1046.50f
+#define Cs6 1108.73f
+#define Db6 1108.73f
+#define D6 1174.66f
+#define Ds6 1244.51f
+#define Eb6 1244.51f
+#define E6 1318.51f
+#define F6 1396.91f
+#define Fs6 1479.98f
+#define Gb6 1479.98f
+#define G6 1567.98f
+#define Gs6 1661.22f
+#define Ab6 1661.22f
+#define A6 1760.00f
+#define As6 1864.66f
+#define Bb6 1864.66f
+#define B6 1975.53f
+#define C7 2093.00f
+#define Cs7 2217.46f
+#define Db7 2217.46f
+#define D7 2349.32f
+#define Ds7 2489.02f
+#define Eb7 2489.02f
+#define E7 2637.02f
+#define F7 2793.83f
+#define Fs7 2959.96f
+#define Gb7 2959.96f
+#define G7 3135.96f
+#define Gs7 3322.44f
+#define Ab7 3322.44f
+#define A7 3520.00f
+#define As7 3729.31f
+#define Bb7 3729.31f
+#define B7 3951.07f
+#define C8 4186.01f
+#define Cs8 4434.92f
+#define Db8 4434.92f
+#define D8 4698.63f
+#define Ds8 4978.03f
+#define Eb8 4978.03f
+#define E8 5274.04f
+#define F8 5587.65f
+#define Fs8 5919.91f
+#define Gb8 5919.91f
+#define G8 6271.93f
+#define Gs8 6644.88f
+#define Ab8 6644.88f
+#define A8 7040.00f
+#define As8 7458.62f
+#define Bb8 7458.62f
+#define B8 7902.13f
+
+#endif //NOTES