Sparkfun Digi X-ON Kit for LoRaWAN® _MAKE_POWER_PSU However there are other options

However there are other options which can be found in our power supply recommendation document

Multiple sensors can be connected in series thanks to the two onboard identical ports

and PPoE format

The YLW pin acts as an optional input that is not hooked up to the strain gauge but is utilized to ground and shield against outside EMI (electromagnetic interference)

C++ function reference

Sparkfun Digi X-ON Kit for LoRaWAN® _MAKE_POWER_PSU However there are other optionsThe SparkFun Digi X ON Kit for LoRaWAN provides everything needed to quickly build and deploy an 868MHz LoRaWAN IoT system, including a Digi HX15 Gateway, SparkFun IoT Node, environmental sensor board, and cloud connectivity for rapid long range wireless sensor projects. The Sparkfun Digi X ON Kit for LoRaWAN (Europe 868MHz version) contains everything you need to get an IoT system up and running within minutes. Containing an HX15 Gateway from Digi,