Have you considered offering the Signal Adapter PCB as a stand alone product? It could be very useful for reading other sensors that rely on counting switch closures / pulses - ...

Does anyone know how to zero the rainfall - or rather the bucket tip counter - apart from power cycling? There's a bunch of registers which are mostly read from (in the library code) and only one is written that sets the mm/tip value. I've tried writing to some of the other registers but there didn't appears to be any effect.

It's be nice to zero the rain gauge remotely.
Thanks!

Hello, I am a new to all this and, I just strated a garden irrigation project. I bought this rain sensor to connect with my ESP32. When I program, I thought to use an interrupt to wake the rain_measure function instead of listning for a signal. In the dry season, we need to continiously listning and waiting for a signal from the rain gauge. I thought to connect the SCL or SCD pin signal to the Pin 34 (any pin), and if an interrupt detected run the rain_measure function. Can I know your experience, ideas and suggestion on this before strat?
Thanks!!

What can be the maximum length between sensor and electronic board?

If you are using the ESP32, we recommend that you use I2C mode (set the adapter board on-board toggle to I2C) and follow the instructions below for wiring:
Red->3.3V, Black->GND, Blue->SCL, Green->SDA. https://uploads.disquscdn.c...

Is there a way to use this rain gauge with M5StickC Plus using UIFlow?

I would very much be able to buy the rainfall sensor PCB stand alone. I blindly bought the rain bucket itself some time ago without knowing how I was going to connect it :) - Any chance that will be available any time soon?