-- *************************************************************************** -- BH1750 Example Program for ESP8266 with nodeMCU -- BH1750 compatible tested 2015-1-30 -- -- Written by xiaohu -- -- MIT license, http://opensource.org/licenses/MIT -- *************************************************************************** local bh1750 = require("bh1750") local sda = 6 -- sda pin, GPIO12 local scl = 5 -- scl pin, GPIO14 do bh1750.init(sda, scl) tmr.create():alarm(10000, tmr.ALARM_AUTO, function() bh1750.read() local l = bh1750.getlux() print("lux: "..(l / 100).."."..(l % 100).." lx") end) end