Added snowman file

diff --git a/snowman/snowman1.py b/snowman/snowman1.py
new file mode 100644 (file)
index 0000000..ffda93f
--- /dev/null
+++ b/snowman/snowman1.py
@@ -0,0 +1,155 @@
+#!/usr/bin/python
+# Tony Goodhew 19 November 2015
+# Uses SnowPi and switch with 10K Ohm pull up on GPIO #16
+# PWM brightness control of nose
+ 
+# Import required libraries
+import RPi.GPIO as GPIO
+import time
+import random
+random.seed()
+ 
+# Tell GPIO library to use GPIO references
+GPIO.setmode(GPIO.BCM)
+sw = 16
+GPIO.setup(sw,GPIO.IN)
+ 
+LEDs = [7,8,9,22,18,17,23,24] # Not nose
+# Setup LED pins as outputs
+for x in range(8):
+    GPIO.setup(LEDs[x], GPIO.OUT)
+    GPIO.output(LEDs[x], False)
+# Light white and blue LEDs
+for x in range(8):
+    GPIO.output(LEDs[x], True)
+ 
+# Set up PWM on nose to control brightness    
+LED = 25 
+freq = 200 # PWM frequency - 200 times /sec
+dutyCycle = 0 # percentage of time on - range 0 to 100
+GPIO.setup(LED,GPIO.OUT)
+pwmLED = GPIO.PWM(LED,freq)
+pwmLED.start(0)
+ 
+def spin():   #Clockwise
+    for i in range(6):
+        GPIO.output(LEDs[i],0) # White Off
+    for n in range(6):
+        for i in range(6):
+            GPIO.output(LEDs[i],1)
+            time.sleep(0.07)
+            GPIO.output(LEDs[i],0)
+    for i in range(6):
+        GPIO.output(LEDs[i],1) #White ON
+    return
+ 
+def spin2():   # Counter Clockwise
+    for i in range(6):
+        GPIO.output(LEDs[i],0) # White OFF
+    for n in range(6):
+        for i in range(5,-1,-1):
+            GPIO.output(LEDs[i],1)
+            time.sleep(0.07)
+            GPIO.output(LEDs[i],0)
+    for i in range(6):
+        GPIO.output(LEDs[i],1) # White ON
+    return
+ 
+def wink():
+    GPIO.output(LEDs[7],0)
+    time.sleep(0.2)
+    GPIO.output(LEDs[7],1)
+    return
+ 
+def wink2():
+    GPIO.output(LEDs[6],0)
+    time.sleep(0.2)
+    GPIO.output(LEDs[6],1)
+    return
+ 
+def upDown():                  # Up and Down
+    for i in range(6):
+        GPIO.output(LEDs[i],0) # White OFF
+    for i in range(4):
+        for n in range(3):
+            GPIO.output(LEDs[n],1)
+            GPIO.output(LEDs[5-n],1)
+            time.sleep(0.1)
+            GPIO.output(LEDs[n],0)
+            GPIO.output(LEDs[5-n],0)
+            time.sleep(0.1)
+        for m in range(3):
+            n = 2-m
+            GPIO.output(LEDs[n],1)
+            GPIO.output(LEDs[5-n],1)
+            time.sleep(0.1)
+            GPIO.output(LEDs[n],0)
+            GPIO.output(LEDs[5-n],0)
+            time.sleep(0.1)    
+    for i in range(6):
+        GPIO.output(LEDs[i],1) # White ON
+    return
+ 
+def wobble():                  # Side to side
+    for i in range(6):
+        GPIO.output(LEDs[i],0) # White OFF
+    for i in range(6):
+        GPIO.output(7,1)
+        GPIO.output(8,1)
+        GPIO.output(9,1)
+        time.sleep(0.1)
+        GPIO.output(7,0)
+        GPIO.output(8,0)
+        GPIO.output(9,0)
+        time.sleep(0.1)
+        GPIO.output(22,1)
+        GPIO.output(18,1)
+        GPIO.output(17,1)
+        time.sleep(0.1)
+        GPIO.output(22,0)
+        GPIO.output(18,0)
+        GPIO.output(17,0)
+        time.sleep(0.1)
+    for i in range(6):
+        GPIO.output(LEDs[i],1) # White ON
+    return
+ 
+# ==== Main begins ==== 
+pwmLED.ChangeDutyCycle(100) # Nose full brightness
+wobble()
+upDown()
+spin()
+wink()
+spin2()
+wink2()
+ 
+print("Hold button down to stop")
+ 
+# === Loop ===
+swVal = GPIO.input(sw)
+while swVal == 1:
+    for brite in range(0,90,5):
+        pwmLED.ChangeDutyCycle(brite) # Brighter nose
+        time.sleep(0.1)
+    n = random.randint(0,5)
+    if n == 0:
+        spin()
+    if n == 1:
+        spin2()
+    if n == 2:
+        wink()
+    if n == 3:
+        wink2()
+    if n == 4:
+        wobble()
+    if n == 5:
+        upDown()
+    for brite in range(90,0,-5):
+        pwmLED.ChangeDutyCycle(brite) # Dimmer nose
+        time.sleep(0.1)    
+    swVal = GPIO.input(sw) # Check switch for stopping
+ 
+# === Tidy up ===
+print("Halted by button")
+# Reset GPIO settings
+GPIO.cleanup()