​DS18B20 Wifi Thermostat ​(3.0 branch only)

​memclear
SERIALPRINTLN "restart page"
cls

let curr = 0
let setp = 30
let stat = On

Print "ESP8266 WiFi Thermostat "
print
Button "Setpoint", [refresh]
textbox setp
wprint "CurrTemp="
textbox curr
wprint "<br>"
wprint "Heater="
textbox stat
wprint "<br>"
button "Exit", [quit]
timer 4000, [refresh]
wait

[on2]
io(po,2,0)
SERIALPRINTLN "PIN 2 ON"
let stat = "On"
Wait

[off2]
io(po,2,1)
SERIALPRINTLN "PIN 2 OFF"
let stat = "Off"
Wait


[refresh]
curr = temp(0)
SERIALPRINTLN curr
if curr < setp then goto [on2] else goto [off2]
Wait

[quit]
timer 0
wprint "<a href='/'>Menu</a>"
end

This example was contributed by Rotohammer. Original discussion thread (http://www.esp8266.com/viewtopic.php?f=41&t=6422)

Pin 2 is connected to a relay module to turn the heater on or off.

The onewire sensor must be connected to pin 2 as all onewire communication is hard coded to use this pin.