Add sample scripts.

Currently they need to be in the parent directory, because we do not
install the module in any way.

Also, note the minimal difference between the demo scripts (*_demo.py)
and the actual scripts intended to run on Omnia (the rest)

breathe.py

@@ -0,0 +1,30 @@
+#!/usr/bin/python3
+
+from omnia import leds
+from random import randint
+from time import sleep
+
+strip = leds.OmniaStrip
+
+def set_leds(br):
+    for led in strip:
+        st = led.state
+        st.brightness = br
+        st.autonomous = False
+        led.set(st)
+
+def continuous_brightness_change(start, step, stop, wait):
+    for x in range(start, stop, step):
+        set_leds(x)
+        sleep(wait)
+
+def inhale():
+    print('inhaling')
+    continuous_brightness_change(0, 30, 255, .1)
+def exhale():
+    print('exhaling')
+    continuous_brightness_change(255, -30, 0, .1)
+
+while True:
+    inhale()
+    exhale()

breathe2.py

@@ -0,0 +1,30 @@
+#!/usr/bin/python3
+
+from omnia import leds
+from random import randint
+from time import sleep
+
+strip = leds.OmniaStrip
+
+def set_leds(br):
+    br = max(1, br)
+    r, g, b = 1, 0, 0
+    st = leds.LedState(int(r*br), int(g*br), int(b*br), 1, False)
+    strip.apply([st], leds.PatternFitting.Repeat)
+
+def continuous_brightness_change(start, step, stop, wait):
+    for x in range(start, stop, step):
+        set_leds(x)
+#        sleep(wait)
+
+def inhale():
+    print('inhaling')
+    continuous_brightness_change(-30, 1, 128, .02)
+def exhale():
+    print('exhaling')
+    continuous_brightness_change(128, -1, -30, .02)
+
+
+while True:
+    inhale()
+    exhale()

breathe2_demo.py

@@ -0,0 +1,31 @@
+#!/usr/bin/python3
+
+from omnia import leds
+from random import randint
+from time import sleep
+import pygame_demo as demo
+
+strip = demo.my_strip
+
+def set_leds(br):
+    br = max(1, br)
+    r, g, b = 1, 0, 0
+    st = leds.LedState(int(r*br), int(g*br), int(b*br), 1, False)
+    strip.apply([st], leds.PatternFitting.Repeat)
+
+def continuous_brightness_change(start, step, stop, wait):
+    for x in range(start, stop, step):
+        set_leds(x)
+#        sleep(wait)
+
+def inhale():
+    print('inhaling')
+    continuous_brightness_change(-30, 1, 128, .02)
+def exhale():
+    print('exhaling')
+    continuous_brightness_change(128, -1, -30, .02)
+
+
+while True:
+    inhale()
+    exhale()

breathe2_orange.py

@@ -0,0 +1,30 @@
+#!/usr/bin/python3
+
+from omnia import leds
+from random import randint
+from time import sleep
+
+strip = leds.OmniaStrip
+
+def set_leds(br):
+    br = max(1, br)
+    r, g, b = 1, 0.5, 0
+    st = leds.LedState(int(r*br), int(g*br), int(b*br), 1, False)
+    strip.apply([st], leds.PatternFitting.Repeat)
+
+def continuous_brightness_change(start, step, stop, wait):
+    for x in range(start, stop, step):
+        set_leds(x)
+#        sleep(wait)
+
+def inhale():
+    print('inhaling')
+    continuous_brightness_change(-30, 1, 128, .02)
+def exhale():
+    print('exhaling')
+    continuous_brightness_change(128, -1, -30, .02)
+
+
+while True:
+    inhale()
+    exhale()

breathe2_orange_demo.py

@@ -0,0 +1,31 @@
+#!/usr/bin/python3
+
+from omnia import leds
+from random import randint
+from time import sleep
+import pygame_demo as demo
+
+strip = demo.my_strip
+
+def set_leds(br):
+    br = max(1, br)
+    r, g, b = 1, 0.5, 0
+    st = leds.LedState(int(r*br), int(g*br), int(b*br), 1, False)
+    strip.apply([st], leds.PatternFitting.Repeat)
+
+def continuous_brightness_change(start, step, stop, wait):
+    for x in range(start, stop, step):
+        set_leds(x)
+#        sleep(wait)
+
+def inhale():
+    print('inhaling')
+    continuous_brightness_change(-30, 1, 128, .02)
+def exhale():
+    print('exhaling')
+    continuous_brightness_change(128, -1, -30, .02)
+
+
+while True:
+    inhale()
+    exhale()

breathe_demo.py

@@ -0,0 +1,41 @@
+#!/usr/bin/python3
+
+from omnia import leds
+from random import randint
+from time import sleep
+import pygame_demo as demo
+
+strip = demo.my_strip
+
+def set_leds(br):
+    for led in strip:
+        st = led.state
+        st.brightness = br
+        st.autonomous = False
+        led.set(st)
+
+def continuous_brightness_change(start, step, stop, wait):
+    for x in range(start, stop, step):
+        set_leds(x)
+        sleep(wait)
+
+def inhale():
+    print('inhaling')
+    continuous_brightness_change(0, 30, 255, .1)
+def exhale():
+    print('exhaling')
+    continuous_brightness_change(255, -30, 0, .1)
+
+# Initialize to random colors:
+for led in strip:
+	led.set(leds.LedState(
+		r = min(255, randint(1,64) * 4),
+		g = min(255, randint(1,64) * 4),
+		b = min(255, randint(1,64) * 4),
+		brightness = 0,
+		autonomous = False,
+		))
+
+while True:
+    inhale()
+    exhale()

haluz.py

@@ -0,0 +1,22 @@
+#!/usr/bin/python3
+
+from omnia import leds
+from random import randint
+from time import sleep
+
+strip = leds.LedStrip(leds.omnia_led_order)
+
+def random():
+    # Víc kvantizované
+    return randint(1, 4)*64
+
+while True:
+    for led in strip:
+        led.set(leds.LedState(
+            r = random(),
+            g = random(),
+            b = random(),
+            brightness = random(),
+            autonomous = False,
+            ))
+    sleep(.25)

haluz_demo.py

@@ -0,0 +1,23 @@
+#!/usr/bin/python3
+
+from omnia import leds
+from random import randint
+from time import sleep
+import pygame_demo as demo
+
+strip = demo.my_strip
+
+def random():
+    # Víc kvantizované
+    return min(255, randint(1, 4)*64)
+
+while True:
+    for led in strip:
+        led.set(leds.LedState(
+            r = random(),
+            g = random(),
+            b = random(),
+            brightness = random(),
+            autonomous = False,
+            ))
+    sleep(.25)