Getting 85c

[yesami]

Dear all

I have used the this code with lua language in order to test ds18b20 temperature sensor with feather adafruit huzzah esp8266 wifi module .Moreover, the pin connction ,I used was pin=6 for lua code and corresponding of 12 on esp866 board.
However, I am getting the temperature measurement value 85 c.
hence, could any one help me out ,please.

cheers!