Thanks to a WH-SP-RG rain gauge, there’s not much to that part ... LoRa, of course, is another choice. You can make 3D print a tipping bucket device, too.

[Malte Pöggel] thinks so, and this LoRa rain gauge is the result ... way to get your feet wet in LoRa design. You could even print your own tipping bucket collector and modify the electronics ...