@mfalkvidd thank you，yes It's very good
http://www.airspayce.com/mikem/arduino/RadioHead/classRH__RF95.html

@mfalkvidd We are doing a test to achieve the school energy (such as water, electricity) data collection, but each collection point is about 1-2 kilometers away. Do you have any good suggestions? Thank you very much

MySensors if support LoRa sx1276 / sx1278，and how to use that