Confirmed against the real deployed server: Cloudflare Tunnel's free tier caps request bodies at ~100MB and returns a plain 413 - a direct LAN upload of the same 250MB test file succeeds, the identical request through yaris.ceaf.dev does not. Real dashcam clips average ~320MB, so no dashcam video could ever complete an upload through the tunnel as it stood, regardless of the earlier memory-streaming fix. Server: new /api/v1/dashcam/upload/chunk (accepts one chunk at a time, keyed by relative_path+sha256+chunk_index/total_chunks, reassembles and verifies the sha256 once every chunk has arrived) and /api/v1/dashcam/upload/status (reports which chunk indices a given upload already has, or "already_uploaded" if it's done) endpoints. Chunks are staged under STORAGE_DIR/.upload_tmp/<device>/<sha256>/ and cleaned up after reassembly; a stale partial set left by a differently -chunked earlier attempt is detected via a small marker file and wiped before restarting. The original single-shot /upload endpoint is left in place unchanged. Client (modules/app_upload.py): _upload_dashcam_files() now calls _upload_video_chunked(), which checks /status first (so a prior partial upload resumes instead of restarting from byte 0) and then POSTs any missing 40MB chunks (DASHCAM_CHUNK_SIZE, comfortably under Cloudflare's cap) via the same streaming MultipartEncoder approach as before. Co-authored-by: Copilot <[email protected]>
yaris-obd 🚗📡
A Raspberry Pi 3-based OBD-II + GPS tracker for my 2013 Toyota Yaris — reads live vehicle data over USB, tracks position with a SIM868 GNSS/GSM HAT, and serves it all from a local web UI you can pull up on your phone by connecting to the car's own WiFi hotspot. Fully usable offline: no internet needed in the car, offline map tiles included. Also handles pulling dashcam footage off a USB dashcam for local/remote backup.
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rené lévesque bangers i have a dream |
Screenshot
Features
- 📊 Live OBD-II data (speed, RPM, DTC codes) over a cheap USB ELM327-compatible adapter
- 🛰️ Real GPS tracking via a Waveshare SIM868 GNSS/GSM/Bluetooth HAT, plotted live on an offline Leaflet map (pre-cached map tiles — no internet needed in the car)
- 📶 Self-hosted WiFi hotspot so you can load the web UI on your phone from inside the car,
with automatic fallback to your home WiFi when in range (
http://yaris.local— no port number) - 🎥 Dashcam file retrieval — detects a USB dashcam automatically (any brand/folder layout, no hardcoded device path) and copies its footage locally
- 🗄️ Local SQLite trip logging, with an optional MongoDB remote sync path
- 🔌 Runs fully headless as a
systemdservice, autostarting on boot
Hardware
| Part | Notes |
|---|---|
| Raspberry Pi 3 Model B | Web UI host + hotspot |
| Waveshare SIM868 HAT | GNSS (GPS) + GSM/GPRS, unused Bluetooth |
| USB OBD-II adapter | PL2303-based, ELM327-compatible (originally Bluetooth, switched to USB) |
| USB dashcam | Any brand — detected as generic USB mass storage |
| 2013 Toyota Yaris | The patient |
See PLAN.md for full hardware bring-up notes (SIM868 jumper/UART setup, antenna gotchas, etc.) and the detailed project history.
Getting started
python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txt
python3 app.py
The app serves on http://<host>:5000. On the Pi it also runs as a systemd service
(see deploy/) and is reachable with no port number at http://yaris.local once the
mDNS + port-redirect setup described in PLAN.md is installed.
Project status
This project was revived after a couple of years on the shelf. Progress is tracked phase-by-phase in PLAN.md — currently through Phase 8 (dashcam retrieval), with the remote server/upload phase still to come.
