Commit f45e6fec authored by HuangRui's avatar HuangRui
Browse files

Followed Vladimir Dronnikov's advices.

https://github.com/nodemcu/nodemcu-firmware/pull/156
parent 9cab7513
......@@ -7,10 +7,10 @@
-- MIT license, http://opensource.org/licenses/MIT
-- ***************************************************************************
local moduleName = ...
local M = {}
_G[moduleName] = M
local M = {}
_G[moduleName] = M
--I2C slave address of GY-30
local GY_30_address = 0X23
local GY_30_address = 0x23
-- i2c interface ID
local id = 0
--LUX
......@@ -18,12 +18,14 @@ local moduleName = ...
--CMD
local CMD = 0x10
local init = false
--Make it more faster
local i2c = i2c
function M.init(sda, scl)
i2c.setup(id, sda, scl, i2c.SLOW)
--print("i2c ok..")
init = true
end
local function read_data(ADDR, commands, length)
end
local function read_data(ADDR, commands, length)
i2c.start(id)
i2c.address(id, ADDR, i2c.TRANSMITTER)
i2c.write(id, commands)
......@@ -34,21 +36,22 @@ local moduleName = ...
c = i2c.read(id, length)
i2c.stop(id)
return c
end
local function read_lux()
end
local function read_lux()
dataT = read_data(GY_30_address, CMD, 2)
UT = string.byte(dataT, 1) * 256 + string.byte(dataT, 2)
--Make it more faster
UT = dataT:byte(1) * 256 + dataT:byte(2)
l = (UT*1000/12)
return(l)
end
function M.read()
end
function M.read()
if (not init) then
print("init() must be called before read.")
else
read_lux()
end
end
function M.getlux()
end
function M.getlux()
return l
end
return M
end
return M
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