hello, great project, my compliments. I have one question about the parastite connection: in your schematic you have connected the vcc pin to the data pin, but at the link you provided they say to connect vcc and gnd
moreover, the datasheet also sais vcc-gnd connection at page 7 fig.6
and there is also a DS18B20-PAR version that just left the vcc pin disconnected: https://datasheets.maximintegrated.com/en/ds/DS18B20-PAR.pdf
is just an error in your schematic?