> For the complete documentation index, see [llms.txt](https://docs.yudash.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.yudash.com/ig/sn/rg.md).

# Rain Gauge

Tipping bucket rain gauges typically use a magnet-operated reed switch to generate a pulse whenever the bucket tips. The reed switch is normally open and closes momentarily for each tip.

FELYX uses **DI1 as the Rain Pulse Counter input**. Connect the two reed-switch output wires to **DI1 and GND**. Rainfall is calculated from the number of pulses and the configured rain-per-tip value.

### Integration note

* Wire colors and terminal assignments may vary by manufacturer and model. Always refer to the OEM manual for the exact wiring reference before installation.
* Detailed pulse-input configuration and rainfall scaling settings are covered in the FELYX Sensor Integration / Pulse Input configuration section.

<figure><img src="https://1858257737-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FToww5EM1cml3ouN6fvnJ%2Fuploads%2FV8eesnZ8lDe47ZuXpa1S%2Frainfall_concept.png?alt=media&amp;token=1cf0d7d2-eb35-4da3-b65e-abf9fddb2e21" alt=""><figcaption></figcaption></figure>

### Sensor Integration Examples

The following examples show tipping bucket rain gauges that have been integrated with YuDash FELYX. Wiring colours, connector pinouts and rainfall resolution vary between manufacturers; always verify the corresponding OEM documentation before installation.

### RainWise Tipping Bucket

<figure><img src="https://1858257737-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FToww5EM1cml3ouN6fvnJ%2Fuploads%2FNYEpGOGU0CUxCAZ7KPmQ%2Frain_rainwise.png?alt=media&amp;token=0ba16c8d-4128-4dc6-8fdb-99f00193f1e4" alt=""><figcaption></figcaption></figure>

### Xylem Waterlog H-3401-02

<figure><img src="https://1858257737-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FToww5EM1cml3ouN6fvnJ%2Fuploads%2FQr7xtXf7qywdYDX17XeG%2Frain_waterlog.png?alt=media&amp;token=673ece18-3f3b-450b-96d9-1b93aab58955" alt=""><figcaption></figcaption></figure>

### Davis Instruments 6464&#x20;

<figure><img src="https://1858257737-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FToww5EM1cml3ouN6fvnJ%2Fuploads%2FRNgbHvayVOs7HlqQGwCV%2Frain_davis.png?alt=media&amp;token=9565b6f8-e142-4b6c-bae2-45606e69e551" alt=""><figcaption></figcaption></figure>