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1 x
Fog Machine with Remote
https://www.amazon.com/Virhuck-400-Watt-Portable-Halloween-Christmas/dp/B074WMWWS5
1 x
Cow Bell
Craft store cowbell
For the remote, we soldered four wires
- Black ground wire to the battery spring (negative) terminal
- Red +5V wire to the battery flat (positive) terminal
- White and Purple go to the 'switched' part of each switch, which, when connected to 5V activates that switch
# SPDX-FileCopyrightText: 2018 Limor Fried for Adafruit Industries
#
# SPDX-License-Identifier: MIT
import time
import audioio
import audiocore
from digitalio import DigitalInOut, Pull, Direction
from adafruit_seesaw.seesaw import Seesaw
from adafruit_seesaw.pwmout import PWMOut
from adafruit_motor import servo
from busio import I2C
import neopixel
import board
# Create seesaw object
i2c = I2C(board.SCL, board.SDA)
seesaw = Seesaw(i2c)
led = DigitalInOut(board.D13)
led.direction = Direction.OUTPUT
# Two onboard CPX buttons for FOG
buttona = DigitalInOut(board.BUTTON_A)
buttona.direction = Direction.INPUT
buttona.pull = Pull.DOWN
buttonb = DigitalInOut(board.BUTTON_B)
buttonb.direction = Direction.INPUT
buttonb.pull = Pull.DOWN
# Use the signal port for potentiometer w/switch
MORECOW = 2 # A switch on Signal #1
SWITCH = 3 # A potentiometer on Signal #2
# Add a pullup on the switch
seesaw.pin_mode(SWITCH, seesaw.INPUT_PULLUP)
# Servo angles
BELL_START = 60
BELL_END = 75
MOUTH_START = 95
MOUTH_END = 105
# Create servos list
servos = []
for ss_pin in (17, 16): #17 is labeled 1 on CRICKIT, 16 is labeled 2
pwm = PWMOut(seesaw, ss_pin)
pwm.frequency = 50 #must be 50 cannot change
_servo = servo.Servo(pwm, min_pulse=400, max_pulse=2500)
servos.append(_servo)
# Starting servo locations
servos[0].angle = BELL_START
servos[1].angle = MOUTH_START
# For the fog machine we actually use the PWM on the motor port cause it really needs 5V!
fog_off = PWMOut(seesaw, 22)
fog_off.duty_cycle = 0
fog_on = PWMOut(seesaw, 23)
fog_on.duty_cycle = 0
# Audio playback object and helper to play a full file
a = audioio.AudioOut(board.A0)
def play_file(wavfile):
with open(wavfile, "rb") as file:
wavf = audiocore.WaveFile(file)
a.play(wavf)
while a.playing:
servos[1].angle = MOUTH_START
time.sleep(.2)
servos[1].angle = MOUTH_END
time.sleep(.2)
# NeoPixels for EYES
pixels = neopixel.NeoPixel(board.A1, 9, brightness=0.5)
pixels[8] = (255, 255, 0)
pixels[7] = (255, 255, 0)
# Maps a number from one range to another.
def map_range(x, in_min, in_max, out_min, out_max):
mapped = (x-in_min) * (out_max - out_min) / (in_max-in_min) + out_min
if out_min <= out_max:
return max(min(mapped, out_max), out_min)
return min(max(mapped, out_max), out_min)
# Wait before starting up
time.sleep(3)
play_file("i-gotta-have-more-cowbell.wav")
# a pause between audio clips
time.sleep(1)
play_file("only-prescription-more-cowbell.wav")
while seesaw.digital_read(SWITCH):
pass
print("Ready for playing audio")
time.sleep(1)
f = open("fear11.wav", "rb")
wav = audiocore.WaveFile(f)
a.play(wav)
while True:
if seesaw.digital_read(SWITCH):
break # time to bail!
pot = seesaw.analog_read(MORECOW)
print(pot)
eyecolor = (int(map_range(pot, 0, 1023, 255, 0)), int(map_range(pot, 0, 1023, 0, 255)), 0)
pixels[8] = eyecolor
pixels[7] = eyecolor
if buttonb.value:
fog_on.duty_cycle = 65535
else:
fog_on.duty_cycle = 0
if buttona.value:
fog_off.duty_cycle = 65535
else:
fog_off.duty_cycle = 0
if pot < 200: # wait for a bit before we start
continue
delay = map_range(pot, 200, 1023, 1.0, 0.1)
servos[0].angle = BELL_END
time.sleep(0.1)
servos[0].angle = BELL_START
time.sleep(delay)
a.stop()
f.close()
# Fog machine test
fog_off.duty_cycle = 65535
fog_on.duty_cycle = 0
time.sleep(0.1)
fog_off.duty_cycle = 0
pixels[8] = (255, 255, 0)
pixels[7] = (255, 255, 0)
time.sleep(1.5)
play_file("i-coulda-used-more-cow-bell.wav")
Page last edited January 22, 2025
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