# Rain Sensor Monitor

Day 29 of the 100 Days 100 IoT Projects collection. Board: ESP8266.

Detect rainfall intensity through analog readings on the ESP8266. Weather-aware automation starts here.

## How it works

Raindrops landing on the sensor board lower its surface resistance, which shows up as a changing analog voltage. The ESP8266 samples it continuously and reports rainfall intensity in bands from dry to pouring. Simple physics, immediately useful for weather-aware automation.

## What you'll learn

- Analog rain intensity
- Rain board operation
- Intensity banding
- Weather-triggered automation

Full project (code, wiring diagram, Wokwi simulation): https://github.com/kritishmohapatra/100_Days_100_IoT_Projects/tree/main/Rain_Detection_System_using_ESP8266_(Analog_Mode)

Summary by SkillShop. Code and diagrams belong to the original repo.