From 68e0c97cbfd7636bfaf14ce80bb8fa389d8e5cb6 Mon Sep 17 00:00:00 2001
From: Marek Ventur <marekventur@gmail.com>
Date: Tue, 21 Aug 2018 20:58:57 +0100
Subject: [PATCH] Keep resources.py in sync with backend

---
 .development/resources.py |  3 +-
 adhoc.py                  |  8 +++++
 lib/speaker.py            | 70 +++++++++++++++++++++++++++++++++++++++
 lib/test_buttons.py       | 20 +++++++++++
 lib/test_speaker.py       | 34 +++++++++++++++++++
 lib/ugfx_helper.py        | 13 ++++++++
 6 files changed, 147 insertions(+), 1 deletion(-)
 create mode 100644 adhoc.py
 create mode 100644 lib/speaker.py
 create mode 100644 lib/test_buttons.py
 create mode 100644 lib/test_speaker.py
 create mode 100644 lib/ugfx_helper.py

diff --git a/.development/resources.py b/.development/resources.py
index 61284ef..31dd9bc 100644
--- a/.development/resources.py
+++ b/.development/resources.py
@@ -87,9 +87,10 @@ def get_resources(path):
                 if upip_lib.startswith(".") or upip_lib == "__pycache__":
                     continue
                 full_lib_path = os.path.join(full_path, upip_lib)
+                rel_lib_path = os.path.join(sub_path, upip_lib)
                 files = {}
                 if os.path.isfile(full_lib_path):
-                    files = {full_lib_path: None}
+                    files = {rel_lib_path: None}
                     upip_lib = upip_lib.rsplit('.', 1)[0]
                 else:
                     for rel_path in _scan_files(full_lib_path, os.path.join(sub_path, upip_lib)):
diff --git a/adhoc.py b/adhoc.py
new file mode 100644
index 0000000..5dfadd2
--- /dev/null
+++ b/adhoc.py
@@ -0,0 +1,8 @@
+# Fancy a quick experiment? No problem, just code it in here and run
+# "./tilda_tools run adhoc.py"
+
+import ugfx, ugfx_helper, dialogs
+
+ugfx_helper.init()
+ugfx.clear()
+
diff --git a/lib/speaker.py b/lib/speaker.py
new file mode 100644
index 0000000..360a388
--- /dev/null
+++ b/lib/speaker.py
@@ -0,0 +1,70 @@
+"""Library for speaker related functions"""
+
+from machine import Pin, PWM
+from math import log, pow
+from time import sleep_ms
+
+_enabled = True
+_amp_pin = Pin(Pin.GPIO_AMP_SHUTDOWN)
+_speaker_pwm = None
+
+def enabled(value=None):
+    """Sets the internal amplifier. This is entirely independent from the PWM"""
+    global _enabled
+    if value == None:
+        return _enabled
+    else:
+        _enabled = value
+        _set_amp()
+
+def _set_amp():
+    if enabled():
+        _amp_pin.on()
+    else:
+        _amp_pin.off()
+
+def speaker_pwm():
+    global _speaker_pwm
+    if not _speaker_pwm:
+        _speaker_pwm = PWM(PWM.PWM_SPEAKER)
+    return _speaker_pwm
+
+_frequency = None
+def frequency(value = None):
+    global _frequency
+    if value == None:
+        return _frequency
+    _frequency = value
+    _set_amp()
+    speaker_pwm().init(duty=50, freq=_frequency)
+
+def stop():
+    global _frequency
+    # todo: maybe we should deinit the PWM?
+    _frequency = None
+    speaker_pwm().duty(0)
+
+# Music
+NOTES = {"C":0, "C#":1, "D":2, "D#":3, "E":4, "F":5, "F#":6, "G":7, "G#":8, "A":9, "A#":10, "B":11}
+
+def note_to_frequency(note):
+    if (len(note) == 2) and note[1].isdigit():
+        octave = int(note[1])
+        note = note[0].upper()
+    elif len(note) == 3:
+        octave = int(note[2])
+        note = note[0:2].upper()
+    else:
+        octave = 4
+        note = note.upper()
+
+    if note not in NOTES:
+        raise Exception("%s it not a valid note" % note)
+
+    halftones = NOTES[note] + 12 * (octave - 4)
+    freq = 440 * pow(1.059, halftones)
+    return round(freq)
+
+def note(note):
+    frequency(note_to_frequency(note))
+
diff --git a/lib/test_buttons.py b/lib/test_buttons.py
new file mode 100644
index 0000000..e54c910
--- /dev/null
+++ b/lib/test_buttons.py
@@ -0,0 +1,20 @@
+"""Tests for icons lib"""
+
+___license___      = "MIT"
+___dependencies___ = ["upip:unittest", "buttons"]
+
+import unittest, ugfx, time
+from buttons import *
+
+class TestButtons(unittest.TestCase):
+
+    def test_is_pressed(self):
+        self.assertFalse(is_pressed(Buttons.BTN_9))
+
+    def test_is_triggered(self):
+        self.assertFalse(is_triggered(Buttons.BTN_9))
+
+
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/lib/test_speaker.py b/lib/test_speaker.py
new file mode 100644
index 0000000..d42ae0c
--- /dev/null
+++ b/lib/test_speaker.py
@@ -0,0 +1,34 @@
+"""Tests for http"""
+
+___license___      = "MIT"
+___dependencies___ = ["upip:unittest", "speaker", "sleep"]
+
+import unittest, speaker
+from sleep import *
+
+class TestSpeaker(unittest.TestCase):
+
+    def tearDown(self):
+        speaker.stop()
+
+    def test_enabled(self):
+        self.assertEqual(speaker.enabled(), True)
+        speaker.enabled(False)
+        self.assertEqual(speaker.enabled(), False)
+        speaker.enabled(True)
+        self.assertEqual(speaker.enabled(), True)
+
+    def test_beep_and_stop(self):
+        for f in range(50, 1000):
+            speaker.frequency(f)
+            self.assertEqual(speaker.frequency(), f)
+            sleep_ms(1)
+        speaker.stop()
+
+    def test_note(self):
+        for n in ["c", "d", "e", "f", "g", "a", "b", "c5"]:
+            speaker.note(n)
+            sleep_ms(100)
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/lib/ugfx_helper.py b/lib/ugfx_helper.py
new file mode 100644
index 0000000..9c3ce20
--- /dev/null
+++ b/lib/ugfx_helper.py
@@ -0,0 +1,13 @@
+"""Helper library for ugfx stuff"""
+
+___license___ = "MIT"
+
+import ugfx
+from machine import Pin
+
+def init():
+    ugfx.init()
+    Pin(Pin.PWM_LCD_BLIGHT).on()
+
+def deinit():
+    Pin(Pin.PWM_LCD_BLIGHT).off()