fine I will use displayio for hwtest

todbot · Aug 11, 2023 · aa3524a · aa3524a
1 parent 16de55f
commit aa3524a
Showing 1 changed file with 21 additions and 16 deletions.
diff --git a/circuitpython/hwtest/code.py b/circuitpython/hwtest/code.py
@@ -45,19 +45,20 @@
                          buffer_size=8192)  # buffer_size=4096)  # need a big buffer when screen updated
 synth = synthio.Synthesizer(sample_rate=28000)
 audio.play(mixer)
-mixer.voice[0].level = 0.5 # turn down the volume a bit since this can get loud
+mixer.voice[0].level = 0.75 # turn down the volume a bit since this can get loud
 mixer.voice[0].play(synth)
 
 wave_saw = np.linspace(30000,-30000, num=256, dtype=np.int16)  # default squ is too clippy
 amp_env = synthio.Envelope(sustain_level=0.8, release_time=0.4, attack_time=0.001)
 synth.envelope = amp_env
 
-# maingroup = displayio.Group()
-# display.show(maingroup)
-# text1 = label.Label(terminalio.FONT, text="hello\nworld...", line_spacing=0.75, x=5,y=dh//4,scale=1)
-# text2 = label.Label(terminalio.FONT, text="@todbot", line_spacing=0.75, x=dw//2, y=dh-15, scale=1)
-# maingroup.append(text1)
-# maingroup.append(text2)
+maingroup = displayio.Group()
+display.show(maingroup)
+text1 = label.Label(terminalio.FONT, text="helloworld...", x=0, y=10)
+text2 = label.Label(terminalio.FONT, text="@todbot", x=0, y=25)
+text3 = label.Label(terminalio.FONT, text="hwtest. press!", x=0, y=50)
+for t in (text1, text2, text3):
+    maingroup.append(t)
 
 midi_notes = (33, 45, 52, 57)
 touch_notes = [None] * 4
@@ -69,24 +70,25 @@ def check_touch():
         touch = touchs[i]
         touch.update()
         if touch.rose:
-            #print("touch press",i)
+            print("touch press",i)
             f = synthio.midi_to_hz(midi_notes[i])
             filter = synth.low_pass_filter(filter_freq, filter_resonance)
             n = synthio.Note( frequency=f, waveform=wave_saw, filter=filter )
             synth.press( n )
             touch_notes[i] = n
         if touch.fell:
-            #print("touch release", i)
+            print("touch release", i)
             synth.release( touch_notes[i] )
 
-note = synthio.Note(frequency=0)
+#note = synthio.Note(frequency=0)
 sw_pressed = False
 
 async def debug_printer():
     while True:
-        print("K:%3d %3d S:%d" % (knobA.value//255, knobB.value//255, sw_pressed) )
-        print("T", touchins[0].raw_value//16, touchins[1].raw_value//16, touchins[2].raw_value//16, touchins[3].raw_value//16)
-        print()
+        text1.text = "K:%3d %3d S:%d" % (knobA.value//255, knobB.value//255, sw_pressed)
+        text2.text = "T:" + ''.join(["%3d " % v for v in (touchins[0].raw_value//16, touchins[1].raw_value//16, touchins[2].raw_value//16, touchins[3].raw_value//16)])
+        print(text1.text)
+        print(text2.text)
         await asyncio.sleep(0.3)
 
 async def input_handler():
@@ -97,7 +99,11 @@ async def input_handler():
 
     while True:
         filter_freq = knobA.value/65535 * 8000 + 100  # range 100-8100
-        filter_resonance = knobB.value/65535 * 3 + 0  # range 0-3
+        filter_resonance = knobB.value/65535 * 3 + 0.2  # range 0.2-3.2
+
+        for n in touch_notes:  # real-time adjustment of filter
+            if n:
+                n.filter = synth.low_pass_filter(filter_freq, filter_resonance)
 
         check_touch()
 
@@ -108,8 +114,7 @@ async def input_handler():
             if key.pressed:
                 sw_pressed = True
                 f = synthio.midi_to_hz(random.randint(32,60))
-                filter = synth.low_pass_filter(filter_freq, filter_resonance)
-                note = synthio.Note(frequency=f, waveform=wave_saw, filter=filter)
+                note = synthio.Note(frequency=f, waveform=wave_saw) # , filter=filter)
                 synth.press(note)
         await asyncio.sleep(0.01)