Bhumi Drishti 🛰️

1U CubeSat High-Altitude Balloon Mission

A student-built 1U CubeSat (100×100×113.5 mm) flown on a weather balloon to the stratosphere. Sensors measure pressure, temperature, magnetic field, and GPS coordinates throughout ascent and descent.

Mission Overview

• Platform: 1U CubeSat form factor (100 × 100 × 113.5 mm)
• Launch vehicle: 600g weather balloon
• Target altitude: 20,000 – 40,000 m (stratosphere)
• Flight computer: Arduino Nano
• Sensors: BMP280 (pressure + temp) · HMC5883L (magnetometer) · Neo-6M (GPS)
• Data storage: SD card, CSV format
• Recovery: Parachute + GSM backup tracker

Repository Structure

Bhumi-Drishti/
├── firmware/          # Arduino .ino source files
├── hardware/          # Wiring diagrams, PCB files
├── data/              # Sample CSV logs from tests
├── docs/              # Mission plan, test reports
└── analysis/          # Post-flight data scripts

Current Status

• Phase 1 — Team formed, workspace created
• Phase 2 — Sensor integration & demo build
• Phase 3 — Environmental testing
• Phase 4 — Launch preparation & DGCA approval
• Phase 5 — Launch & recovery

Team

Built by a 4-person student team based in India.

License

MIT — open science, open data.

System Architecture

(docs/System Architecture/system architecture.png)