# BMP180 Barometer Monitor

Day 50 of the 100 Days 100 IoT Projects collection. Board: ESP32.

Track atmospheric pressure and altitude with a BMP180 on the ESP32, visualized in Blynk. Weather forecasting hardware.

## How it works

The BMP180 reports raw pressure over I2C, from which the ESP32 derives both sea-level-adjusted pressure and approximate altitude. Readings stream to a Blynk dashboard where trends — the falling pressure before a storm — become visible.

## What you'll learn

- Barometric pressure sensing
- Altitude derivation
- I2C sensor interfacing
- Weather trend analysis

Full project (code, wiring diagram, Wokwi simulation): https://github.com/kritishmohapatra/100_Days_100_IoT_Projects/tree/main/IoT_Atmospheric_Monitoring_System_using_ESP32,_wowki_&_Blynk

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