VoltScope

Inspiration

Tesla owners who self-host TeslaMate have rich vehicle data stuck in Grafana and SQL. We wanted a phone-native product that keeps privacy first—no third-party cloud holding vehicle control credentials.

What it does

VoltScope is a privacy-first Android EV companion:

• Live vehicle status from your own TeslaMate PostgreSQL
• Battery health trends with honest methodology (not fake official SOH claims)
• Charging analytics and drive history with privacy-aware routes
• Weekly reports and explainable alerts (Build Week focus)

How we built it

• Android: Kotlin + Jetpack Compose multi-module app
• Backend: FastAPI read-only aggregation over TeslaMate
• Security: one-time pairing codes; Tesla tokens never on the phone
• Codex + GPT-5.6: Codex accelerated Kotlin screens, FastAPI routes, tests, and docs; GPT-5.6 powers plain-language report/alert explanations for non-engineers

Challenges

TeslaMate schema compatibility, location privacy, and keeping battery metrics scientifically honest.

What's next

Smarter alerts, exportable reports, and optional on-device summaries.

Built With

• android
• fastapi
• gpt-5.6
• jetpack-compose
• kotlin
• openai-codex
• postgresql
• python
• teslamate