Negative values update

[xand79]

I've successfully used this code for NodeMcu+ds18b20 (even without external pull-up resistor), but for negative values got only -0.125 or -0.0625 ones continuosly. Tnen, I have changed lines 50-51 at ds18b20.lua to "t = t - 0x10000" and now all works perfect. Tested in home refrigirator :)
By the way, here is error on circuit: Vcc and Gnd pins of sensor is shorten.
Best regards!