132 lines
3.8 KiB
Lua
132 lines
3.8 KiB
Lua
--[[
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This file is a test for a led strip WS2813
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Intelligent control LED integrated light source
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This use the module ws2812:
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https://nodemcu.readthedocs.io/en/master/en/modules/ws2812/
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]]
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-- define the led strip total length
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stripLength=24
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-- Test 1
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-- This turn off the led strip for 1 second
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ws2812.init()
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myLedStrip = ws2812.newBuffer(stripLength, 3) -- 6 leds with 3 colors
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myLedStrip:fill(0,0,0)
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ws2812.write(myLedStrip)
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tmr.delay(1 * 1000000) -- wait for 1 s
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-- Test 2
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-- This is the minimal test: it will initialize and turn on the first
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-- 3 leds to:
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-- 1. 255, 0, 0
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-- 2. 0, 255, 0
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-- 3. 0, 0, 255
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-- Note: The leds strip are not necessarily in RGB, this test aim to
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-- find out what the type of led you have. In my case, it's BRG.
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ws2812.init()
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ws2812.write(string.char(255, 0, 0, --[[ ]] 0, 255, 0, --[[ ]] 0, 0, 255))
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tmr.delay(1 * 1000000) -- wait for 1 s
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-- Now you can see that the luminosity is very different according to the main color.
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-- In fact, you need to correct the luminosity for the humain eye, something as
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ws2812.write(string.char(180, 0, 0, --[[ ]] 0, 255, 0, --[[ ]] 0, 0, 60))
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tmr.delay(3 * 1000000) -- wait for 3 s
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-- Test 3
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-- Traffic lights
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ws2812.init()
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ws2812.write(string.char(0, 255, 0, --[[]] 0, 0, 0, --[[]] 0, 0, 0)) -- RED
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tmr.delay(2 * 1000000) -- wait for 2 s
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ws2812.write(string.char(0, 0, 0, --[[]] 0, 255, 44, --[[]] 0, 0, 0)) -- ORANGE B0 R255 G88
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tmr.delay(1 * 1000000) -- wait for 1 s
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ws2812.write(string.char(0, 0, 0, --[[]] 0, 0, 0, --[[]] 0, 0, 255)) -- GREEN
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tmr.delay(3 * 1000000) -- wait for 3 s
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-- Test 4
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-- This show the luminosity gradient
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-- The first arg: led position, then: color
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myLedStrip = ws2812.newBuffer(stripLength, 3) -- 6 leds with 3 colors
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myLedStrip:fill(0,0,0)
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ws2812.write(myLedStrip)
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-- RED
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myLedStrip:set( 1, 0, 10, 0)
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myLedStrip:set( 2, 0, 20, 0)
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myLedStrip:set( 3, 0, 40, 0)
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myLedStrip:set( 4, 0, 80, 0)
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myLedStrip:set( 5, 0, 160, 0)
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myLedStrip:set( 6, 0, 255, 0)
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-- GREEN
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myLedStrip:set( 7, 0, 0, 10)
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myLedStrip:set( 8, 0, 0, 20)
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myLedStrip:set( 9, 0, 0, 40)
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myLedStrip:set(10, 0, 0, 80)
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myLedStrip:set(11, 0, 0, 160)
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myLedStrip:set(12, 0, 0, 255)
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-- BLUE
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myLedStrip:set(13, 10, 0, 0)
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myLedStrip:set(14, 20, 0, 0)
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myLedStrip:set(15, 40, 0, 0)
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myLedStrip:set(16, 80, 0, 0)
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myLedStrip:set(17, 160, 0, 0)
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myLedStrip:set(18, 255, 0, 0)
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ws2812.write(myLedStrip)
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tmr.delay(3 * 1000000) -- wait for 3 s
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-- Test 5
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-- k2000 fx (Brace yourself, David Hasselhoff!)
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ws2812.init()
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fadeLevel=3
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timerSpeed=20 -- timer speed in milliseconds
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mode = ws2812.SHIFT_CIRCULAR -- ws2812.SHIFT_LOGICAL / ws2812.SHIFT_CIRCULAR
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-- Buffer Train 1
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myLedStrip1 = ws2812.newBuffer(stripLength, 3) -- 6 leds with 3 colors
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myLedStrip1:fill(0,0,0)
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myLedStrip1:set(1, 100,100,100)
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myLedStrip1:fade(fadeLevel)
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myLedStrip1:set(2, 100,100,100)
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myLedStrip1:fade(fadeLevel)
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myLedStrip1:set(3, 100,100,100)
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myLedStrip1:fade(fadeLevel)
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myLedStrip1:set(4, 100,100,100)
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-- debug: ws2812.write(myLedStrip1)
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-- Buffer Train 2
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myLedStrip2 = ws2812.newBuffer(stripLength, 3) -- 6 leds with 3 colors
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myLedStrip2:fill(0,0,0)
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myLedStrip2:set(stripLength, 0,0,120)
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myLedStrip2:fade(fadeLevel)
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myLedStrip2:set(stripLength-1, 0,0,120)
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myLedStrip2:fade(fadeLevel)
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myLedStrip2:set(stripLength-2, 0,0,120)
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myLedStrip2:fade(fadeLevel)
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myLedStrip2:set(stripLength-3, 0,0,120)
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myLedStrip2:fade(fadeLevel)
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-- debug: ws2812.write(myLedStrip2)
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-- Buffer Train Total
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myLedStrip = ws2812.newBuffer(stripLength, 3) -- 6 leds with 3 colors
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myLedStrip:mix(255, myLedStrip1, 255, myLedStrip2)
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-- debug: ws2812.write(myLedStrip)
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tmr.create():alarm(timerSpeed, 1, function()
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myLedStrip1:shift(1, mode) -- direction →
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myLedStrip2:shift(-1, mode) -- direction ←
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myLedStrip:mix(255, myLedStrip1, 255, myLedStrip2) -- mix both train
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ws2812.write(myLedStrip)
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end)
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-- end of file |