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working with smooth fire colors and flicker refresh

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This commit is contained in:
Mikey Sklar 2018-11-25 15:02:45 -07:00
parent 01c999ebb4
commit f22fd3393e
2 changed files with 9 additions and 25 deletions
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Starduino_8bit_Super_Mario_Tree_Topper/.Starduino_8bit_Super_Mario_Tree_Topper.ino.swp
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Starduino_8bit_Super_Mario_Tree_Topper/Starduino_8bit_Super_Mario_Tree_Topper.py
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@ -1,10 +1,3 @@
# 'Cyber falls' sketch
# Creates a fiery rain-like effect on multiple NeoPixel strips.
# Requires Adafruit Trinket and NeoPixel strips. Strip length is
# inherently limited by Trinket RAM and processing power; this is
# written for five 15-pixel strands, which are paired up per pin
# for ten 15-pixel strips total.
import time
import board
import neopixel
@ -14,35 +7,26 @@ num_leds = 16 # number of LEDs per strip
saturation = 255 # 0-255, 0 is pure white, 255 is fully saturated color
blend = True # color blending between palette indices
brightness = 0.8 # brightness the range is 0.0 - 1.0
concurrent = 16 # number of LEDs on at a time
on_time = 0.04 # 0.04 seconds == 40 milliseconds
offset = 0 # flame flicker
# NeoPixel objects using
drop0 = neopixel.NeoPixel(board.D0, num_leds)
def led_drops(strip):
# FancyLED allows for mixing colors with palettes
palette = [fancy.CRGB(200, 255, 200), # lighter (more white) green
fancy.CRGB(0, 255, 0)] # full green
leds = neopixel.NeoPixel(board.D0, num_leds)
# Inspired by Fire2012() by Mark Kriegsman and his use of FastLED
# to create a one-dimensional 'fire' simulation
# the heat colors are from the heat palette that FastLED provides
def fire_2018(strip, offset):
# heat colors
palette = [0x330000, 0x660000, 0x990000, 0xCC0000, 0xFF0000,
0xFF3300, 0xFF6600, 0xFF9900, 0xFFCC00, 0xFFFF00,
0xFFFF33, 0xFFFF66, 0xFFFF99, 0xFFFFCC]
for i in range(num_leds):
# FancyLED can handle the gamma adjustment, brightness and RGB settings
color = fancy.palette_lookup(palette, i / num_leds)
color = fancy.palette_lookup(palette, offset + i / num_leds)
color = fancy.gamma_adjust(color, brightness=brightness)
strip[i] = color.pack()
if i >= num_leds - 1:
for j in range(concurrent,-1,-1):
strip[i-j] = (0,0,0)
while True:
# loop through each neopixel strip in our list
led_drops(drop0)
fire_2018(leds, offset)
offset += 0.3 # flame flicker, adjust value to control speed