A full-stack weather monitoring system that streams data from a physical Raspberry Pi sensor to a cloud-hosted application using MQTT, Spring WebFlux, MongoDB, and Angular SSR.
Nimbus collects minute-by-minute atmospheric data from a custom-built weather station (running on a Raspberry Pi), ingests the data over MQTT into a reactive Java backend, stores it in MongoDB, and renders it in real-time via an Angular SSR frontend deployed on a virtual machine with NGINX.
| Layer | Technology |
|---|---|
| IoT Sensor | Raspberry Pi, Python, BME280 |
| Messaging | MQTT (Mosquitto broker) |
| Backend | Java, Spring WebFlux, Reactor, MongoDB |
| Frontend | Angular (SSR with hydration), ngx-charts |
| Deployment | Ubuntu VM, NGINX, PM2 |
🔗 https://nimbus-weather-project.com
- Real-time streaming from Raspberry Pi over MQTT
- Reactive backend using Spring WebFlux and Reactor
- Minute-by-minute ingestion into MongoDB
- Historical charting by metric and time
- SSR-enabled Angular UI for SEO & fast load
- Self-hosted on a virtual machine using NGINX
You must have a raspberry pi running the code from https://github.com/ajcuddeback/nimbus-pi.git and a MongoDB instance
# clone repo
git clone https://github.com/ajcuddeback/nimbus.git
cd nimbus
# Setup backend
cd weatherapi/weatherapi
./mvnw spring-boot:run
# Setup frontend
cd ../../app
npm install
npm run dev:ssr