ported to CircuitPython

Close_Encounters_Hat/Close_Encounters_Hat.ino

@@ -0,0 +1,128 @@
+/* 
+Close Encounters hat with 10 neopixels by Leslie Birch for Adafruit Industries.
+Notes play with each corresponding light. 
+Based on code by Becky Stern, Mike Barela and T Main for Adafruit Industries
+http://learn.adafruit.com/adafruit-trinket-modded-stuffed-animal/animal-sounds
+*/
+
+const int speaker = 0;      // the number of the speaker
+#define PHOTOCELL 1         // cDS photocell on A1
+
+// this section is Close Encounters Sounds
+#define toneC    1046.50
+#define toneG    1567.98
+#define tonec     2093.00
+#define toned     2349.32
+#define tonee     2637.02
+#define tonep       0 
+
+#define darkness_min 512 // analog 0-1024 0-512 (light, 513-1023 dark)
+
+long vel = 20000;
+
+// This section is NeoPixel Variables
+
+#include <Adafruit_NeoPixel.h>
+
+#define PIN 1
+
+// Parameter 1 = number of pixels in strip
+// Parameter 2 = pin number (most are valid)
+// Parameter 3 = pixel type flags, add together as needed:
+//   NEO_KHZ800  800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
+//   NEO_KHZ400  400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
+//   NEO_GRB     Pixels are wired for GRB bitstream (most NeoPixel products)
+//   NEO_RGB     Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2)
+//Adafruit_NeoPixel strip = Adafruit_NeoPixel(10, 1, NEO_GRB + NEO_KHZ800);
+Adafruit_NeoPixel strip = Adafruit_NeoPixel(10, 1);
+
+
+void setup() {
+  pinMode(speaker, OUTPUT);
+
+  Serial.println("setup");
+  
+  //This is for Neopixel Setup
+  strip.begin();
+  strip.show(); // Initialize all pixels to 'off'
+}
+
+void loop() 
+{ 
+    // turn lights and audio on when dark
+    // less than 50% light on analog pin
+    if ( analogRead(PHOTOCELL) > darkness_min ) { 
+
+        alien(); // Close Encounters Loop
+
+     }
+    
+  }
+  
+// the sound producing function
+
+void beep (unsigned char speakerPin, int frequencyInHertz, long timeInMilliseconds)
+{  // http://web.media.mit.edu/~leah/LilyPad/07_sound_code.html
+int x;  
+long delayAmount = (long)(1000000/frequencyInHertz);
+long loopTime = (long)((timeInMilliseconds*1000)/(delayAmount*2));
+for (x=0;x<loopTime;x++)  
+{ 
+digitalWrite(speakerPin,HIGH);
+delayMicroseconds(delayAmount);
+digitalWrite(speakerPin,LOW);
+delayMicroseconds(delayAmount);
+} 
+}
+
+// Generate the Close Encounters LEDs 
+void alien() {
+   
+  strip.setBrightness(64);
+  strip.setPixelColor(8, 255, 255, 0); //yellow front
+  strip.setPixelColor(3, 255, 255, 0); //yellow back
+  strip.show();
+  beep(speaker,toned,1000);
+  delay(25);
+  strip.setPixelColor(8, 0, 0, 0); //clear front
+  strip.setPixelColor(3, 0, 0, 0); //clear back
+  strip.show();
+  delay(25);
+  strip.setPixelColor(7, 255, 0, 255); //pink front
+  strip.setPixelColor(2, 255, 0, 255); //pink back
+  strip.show();
+  beep(speaker,tonee,1000);
+  delay(25);
+  strip.setPixelColor(7, 0, 0, 0); //clear front
+  strip.setPixelColor(2, 0, 0, 0); //clear back
+  strip.show();
+  delay(25);
+  strip.setPixelColor(4, 128, 255, 0); //green front
+  strip.setPixelColor(9, 128, 255, 0); //green back
+  strip.show();
+  beep(speaker,tonec,1000);
+  delay(25);
+  strip.setPixelColor(4, 0, 0, 0); //clear front
+  strip.setPixelColor(9, 0, 0, 0); //clear back
+  strip.show();
+  delay(25);
+  strip.setPixelColor(5, 0, 0, 255); //blue front
+  strip.setPixelColor(0, 0, 0, 255); //blue back
+  strip.show();
+  beep(speaker,toneC,1000);
+  delay(75);
+  strip.setPixelColor(5, 0, 0, 0); //clear front
+  strip.setPixelColor(0, 0, 0, 0); //clear back
+  strip.show();
+  delay(100);
+  strip.setPixelColor(6, 255, 0, 0); //red front
+  strip.setPixelColor(1, 255, 0, 0); //red back
+  strip.show();
+  beep(speaker,toneG,1000);
+  delay(100);
+  strip.setPixelColor(6, 0, 0, 0); //clear front
+  strip.setPixelColor(1, 0, 0, 0); //clear back
+  strip.show();
+  delay(100);
+ 
+}

Close_Encounters_Hat/Close_Encounters_Hat.py

@@ -0,0 +1,101 @@
+# Close Encounters Hat with 10 NeoPixels
+# ported from Leslie Birch's Arduino to CircuitPython
+#
+# Photocell voltage divider center wire to GPIO #2 (analog 1)
+# and output tone to GPIO #0 (digital 0)
+
+import board
+import pulseio
+import analogio
+import time
+import neopixel
+
+# Initialize input/output pins
+photocell_pin = board.A1# cds photocell connected to this ANALOG pin
+speaker_pin = board.D0      # speaker is connected to this DIGITAL pin
+pixpin = board.D1           # pin where NeoPixels are connected
+scale = 0.03                # change this to adjust tone scale
+numpix = 10                 # number of neopixels`
+darkness_min = (2**16 / 2)  # more dark than light > 32k out of 64k
+
+# this section is Close Encounters Sounds
+toned = 294
+tonee = 330
+tonec = 262
+toneC = 130
+toneg = 392
+
+photocell = analogio.AnalogIn(photocell_pin)
+pwm       = pulseio.PWMOut(speaker_pin, variable_frequency=True, duty_cycle=0)
+strip  = neopixel.NeoPixel(pixpin, numpix, brightness=.4) 
+
+# Read photocell analog pin and convert voltage to frequency
+def beep(tone_freq):
+    pwm.frequency  = tone_freq
+    pwm.duty_cycle = 32767  # 50% duty cycle
+    time.sleep(1)           # Play for 1 second
+    pwm.duty_cycle = 0      # Stop playing
+
+def alien(): 
+    strip[8] = (255, 255, 0)    # yellow front
+    strip[3] = (255, 255, 0)    # yellow back
+    beep(toned) 
+
+    time.sleep(.025)
+
+    strip[8] = (0, 0, 0)        # clear front
+    strip[3] = (0, 0, 0)        # clear back
+
+    time.sleep(.025)
+
+    strip[7] = (255, 0, 255)    # pink front
+    strip[2] = (255, 0, 255)    # pink back
+    beep(tonee)
+
+    time.sleep(.025)
+
+    strip[7] = (0, 0, 0)        # clear front
+    strip[2] = (0, 0, 0)        # clear back
+
+    time.sleep(.025)
+
+    strip[4] = (128, 255, 0)    # green front
+    strip[9] = (128, 255, 0)    # green back
+    beep(tonec)
+
+    time.sleep(.025)
+
+    strip[4] = (0, 0, 0)        # clear front
+    strip[9] = (0, 0, 0)        # clear back
+
+    time.sleep(.025)
+
+    strip[5] = (0, 0, 255)      # blue front
+    strip[0] = (0, 0, 255)      # blue back
+    beep(toneC)
+
+    time.sleep(.075)
+
+    strip[5] = (0, 0, 0)        # clear front
+    strip[0] = (0, 0, 0)        # clear back
+
+    time.sleep(.1)
+
+    strip[6] = (255, 0, 0)      # red front
+    strip[1] = (255, 0, 0)      # red back
+    beep(toneg)
+
+    time.sleep(.1)
+
+    strip[6] = (0, 0, 0)        # clear front
+    strip[1] = (0, 0, 0)        # clear back
+
+    time.sleep(.1)
+
+# Loop forever...
+while True:  
+
+    # turn lights and audio on when dark 
+    # (less than 50% light on analog pin)
+    if ( photocell.value > darkness_min ):    
+        alien()     # close Encounters Loop