Print LUX Data Every 10s

lua_modules/bh1750/bh1750_Example1.lua

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+-- ***************************************************************************
+-- BH1750 Example Program for ESP8266 with nodeMCU
+-- BH1750 compatible tested 2015-1-30
+--
+-- Written by xiaohu
+--
+-- MIT license, http://opensource.org/licenses/MIT
+-- ***************************************************************************
+tmr.alarm(0, 10000, 1, function()
+
+    SDA_PIN = 6 -- sda pin, GPIO12
+    SCL_PIN = 5 -- scl pin, GPIO14
+
+    bh1750 = require("bh1750")
+    bh1750.init(SDA_PIN, SCL_PIN)
+    bh1750.read(OSS)
+    l = bh1750.getlux()
+    print("lux: "..(l / 100).."."..(l % 100).." lx")
+
+    -- release module
+    bh1750 = nil
+    package.loaded["bh1750"]=nil
+
+end)