-- File: ds.lua --
-- Paste bellow code to file --

t = require("ds18b20")
-- GPIO0 is pin 3
pin = 3
lasttemp = 0
t.setup(pin)
temperature=t.read()
lasttemp = temperature * 1.8 + 320000
t1 = lasttemp / 10000
tempout=(string.format("%2d", t1)
print("Temperature: "..tempout.."'F")