I purchased the Photon maker kit and am attempting to use the DS18B20 temperature sensor that comes with the kit. (I’m kind of new to the photon but did get another sensor to work so am not a total newb.) Debugging indicates that the photon isn’t detecting the presence of the DS18B20 and is returning a temp of -127.0.
I may have a combination of wiring and software issues going, and want to make sure the wiring is correct before looking at the code.
All the info I’ve found indicates that a 5k-ohm pull-up resistor is needed, but it doesn’t appear that this resistor came with the kit. I may have missed something, but why would the kit not come with that resistor if it’s required for use with the DS18B20? If I need to buy it, where can I get it?
Also, should the DS18B20 Vdd pin be grounded or supplied with voltage? I’ve seen it done both ways so am unsure which is correct…
Thanks in advance,