S4IoT AthenSense System
AthenSense is a development platform which features a CAT-M1/NB-IoT/(E)GPRS communications module. Currently I have it reporting its battery voltage, temperature and RAT (0 for GPRS, 8 for CAT-M1 and 9 for NB-IoT)
Arduino + BME680
Bosch Sensortec BME680 currently hooked up to an UNO with an ethernet shield which is currently reporting temperature, relative humidity, pressure and VOC raw readings.