Removed temperature reading

This commit is contained in:
Ollo 2021-01-14 21:16:12 +01:00
parent 9d764a3b8e
commit d1b5e67ce6
2 changed files with 0 additions and 163 deletions

View File

@ -1,138 +0,0 @@
--------------------------------------------------------------------------------
-- DS18B20 one wire module for NODEMCU
-- NODEMCU TEAM
-- LICENCE: http://opensource.org/licenses/MIT
-- Vowstar <vowstar@nodemcu.com>
-- 2015/02/14 sza2 <sza2trash@gmail.com> Fix for negative values
--------------------------------------------------------------------------------
-- Set module name as parameter of require
local modname = ...
local M = {}
_G[modname] = M
--------------------------------------------------------------------------------
-- Local used variables
--------------------------------------------------------------------------------
-- DS18B20 dq pin
local pin = nil
-- DS18B20 default pin
local defaultPin = 9
--------------------------------------------------------------------------------
-- Local used modules
--------------------------------------------------------------------------------
-- Table module
local table = table
-- String module
local string = string
-- One wire module
local ow = ow
-- Timer module
local tmr = tmr
-- Limited to local environment
setfenv(1,M)
--------------------------------------------------------------------------------
-- Implementation
--------------------------------------------------------------------------------
C = 0
F = 1
K = 2
function setup(dq)
pin = dq
if(pin == nil) then
pin = defaultPin
end
ow.setup(pin)
end
function addrs()
setup(pin)
tbl = {}
ow.reset_search(pin)
repeat
addr = ow.search(pin)
if(addr ~= nil) then
table.insert(tbl, addr)
end
tmr.wdclr()
until (addr == nil)
ow.reset_search(pin)
return tbl
end
function readNumber(addr, unit)
result = nil
setup(pin)
flag = false
if(addr == nil) then
ow.reset_search(pin)
count = 0
repeat
count = count + 1
addr = ow.search(pin)
tmr.wdclr()
until((addr ~= nil) or (count > 100))
ow.reset_search(pin)
end
if(addr == nil) then
return result
end
crc = ow.crc8(string.sub(addr,1,7))
if (crc == addr:byte(8)) then
if ((addr:byte(1) == 0x10) or (addr:byte(1) == 0x28)) then
-- print("Device is a DS18S20 family device.")
ow.reset(pin)
ow.select(pin, addr)
ow.write(pin, 0x44, 1)
-- tmr.delay(1000000)
present = ow.reset(pin)
ow.select(pin, addr)
ow.write(pin,0xBE,1)
-- print("P="..present)
data = nil
data = string.char(ow.read(pin))
for i = 1, 8 do
data = data .. string.char(ow.read(pin))
end
-- print(data:byte(1,9))
crc = ow.crc8(string.sub(data,1,8))
-- print("CRC="..crc)
if (crc == data:byte(9)) then
t = (data:byte(1) + data:byte(2) * 256)
if (t > 32767) then
t = t - 65536
end
if(unit == nil or unit == C) then
t = t * 625
elseif(unit == F) then
t = t * 1125 + 320000
elseif(unit == K) then
t = t * 625 + 2731500
else
return nil
end
t = t / 100
-- print("Temperature="..t1.."."..t2.." Centigrade")
-- result = t1.."."..t2
return t
end
tmr.wdclr()
else
-- print("Device family is not recognized.")
end
else
-- print("CRC is not valid!")
end
return result
end
function read(addr, unit)
t = readNumber(addr, unit)
if (t == nil) then
return nil
else
return t
end
end
-- Return module table
return M

View File

@ -38,32 +38,10 @@ function startMqtt()
end) end)
end end
function readTemp()
if (t ~= nil) then
addrs=t.addrs()
-- Total DS18B20 numbers
sensors=table.getn(addrs)
local temp1=0
if (sensors >= 1) then
temp1=t.read(addrs[1])
end
return temp1
else
return nil
end
end
function startMqttClient() function startMqttClient()
if (mqttServer ~= nil and mqttPrefix ~= nil) then if (mqttServer ~= nil and mqttPrefix ~= nil) then
startMqtt() startMqtt()
print "Started MQTT client" print "Started MQTT client"
if (file.open("ds18b20.lc")) then
t=require("ds18b20")
t.setup(2) -- GPIO4
readTemp() -- read once, to setup chip
print "Setup temperature"
end
oldBrightness=0 oldBrightness=0
oldTemp=0 oldTemp=0
tmr.alarm(5, 5001, 1 ,function() tmr.alarm(5, 5001, 1 ,function()
@ -74,9 +52,6 @@ function startMqttClient()
end end
if (oldBrightness ~= briPercent) then if (oldBrightness ~= briPercent) then
m:publish(mqttPrefix .. "/brightness", tostring(briPercent), 0, 0) m:publish(mqttPrefix .. "/brightness", tostring(briPercent), 0, 0)
elseif (temp ~= nil and temp ~= oldTemp) then
oldTemp = temp
m:publish(mqttPrefix .. "/temp", tostring(temp), 0, 0)
else else
m:publish(mqttPrefix .. "/heap", tostring(node.heap()), 0, 0) m:publish(mqttPrefix .. "/heap", tostring(node.heap()), 0, 0)
end end