NodeMCU Projects: Difference between revisions

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@@ Line 66: / Line 66: @@
 import neopixel
 import time
+import urandom
 pin = machine.Pin(14, machine.Pin.OUT)
 np = neopixel.NeoPixel(pin, 16)
+def rand():
+    return urandom.getrandbits(8)
 def cycle():
-    while True:
+    for i in range(16):
+        np[i] = (128,0,0)
+        np.write()
+        time.sleep_ms(25)
+    for i in range(16):
+        np[i] = (0,128,0)
+        np.write()
+        time.sleep_ms(25)
+    for i in range(16):
+        np[i] = (0,0,128)
+        np.write()
+        time.sleep_ms(25)
+def circle():
+    for j in range(10):
+        x,y,z = rand(),rand(),rand()
         for i in range(16):
-            np[i] = (255,0,0)
+            np[i] = (x,y,z)
             np.write()
             time.sleep_ms(25)
+def circle_rainbow():
+    for j in range(10):
         for i in range(16):
-            np[i] = (0,255,0)
+            np[i] = (rand(),rand(),rand())
             np.write()
             time.sleep_ms(25)
+def fade():
-        for i in range(16):
-            np[i] = (0,0,255)
+    for i in range(0, 4 * 256, 8):
+            for j in range(16):
+                if (i // 256) % 2 == 0:
+                    val = i & 0xff
+                else:
+                    val = 255 - (i & 0xff)
+                np[j] = (val, 0, 0)
             np.write()
-            time.sleep_ms(25)
-        i += 10
+    for i in range(0, 4 * 256, 8):
-def circle(x,y,z):
-    for i in range(16):
+            for j in range(16):
-        np[i] = (x,y,z)
+                if (i // 256) % 2 == 0:
-        np.write()
+                    val = i & 0xff
-        time.sleep_ms(25)
+                else:
+                    val = 255 - (i & 0xff)
+                np[j] = (0, val, 0)
+            np.write()
-def demo(np):
-    n = np.n
-    # cycle
-    for i in range(4 * n):
-        for j in range(n):
-            np[j] = (0, 0, 0)
-        np[i % n] = (255, 255, 255)
-        np.write()
-        time.sleep_ms(25)
-    # bounce
-    for i in range(4 * n):
-        for j in range(n):
-            np[j] = (0, 0, 128)
-        if (i // n) % 2 == 0:
-            np[i % n] = (0, 0, 0)
-        else:
-            np[n - 1 - (i % n)] = (0, 0, 0)
-        np.write()
-        time.sleep_ms(60)
-    # fade in/out
     for i in range(0, 4 * 256, 8):
-        for j in range(n):
+            for j in range(16):
-            if (i // 256) % 2 == 0:
+                if (i // 256) % 2 == 0:
-                val = i & 0xff
+                    val = i & 0xff
+                else:
+                    val = 255 - (i & 0xff)
+                np[j] = (0, 0, val)
+            np.write()
+def bounce():
+    for i in range(5):
+        x,y,z = rand(),rand(),rand()
+        for i in range(4 * 16):
+            for j in range(16):
+                np[j] = (x,y,z)
+            if (i // 16) % 2 == 0:
+                np[i % 16] = (0, 0, 0)
             else:
-                val = 255 - (i & 0xff)
+                np[16 - 1 - (i % 16)] = (0, 0, 0)
-            np[j] = (val, 0, 0)
+            np.write()
-        np.write()
+            time.sleep_ms(60)
-    # clear
-    for i in range(n):
-        np[i] = (0, 0, 0)
-    np.write()
-# Under Construction
-def rainbow():
-    pass
 def off():
@@ Line 140: / Line 151: @@
         np.write()
+cycle()
+off()
+time.sleep(1)
+circle()
+off()
+time.sleep(1)
+circle_rainbow()
+off()
+time.sleep(1)
+fade()
+off()
+time.sleep(1)
+bounce()
 off()
 </syntaxhighlight>