Refactorisé les tests LED RGB

LED_RGB_WS2812/train effect/effect2/nicolas_train.lua

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