# Daniel Rojas Vidal - RoyaLens

- **Event:** [Meta Global AI Developer Hackathon](https://cerebralvalley.ai/e/meta-ai-developer-hackathon)
- **When:** Oct 26, 12:00 PM – Nov 4, 9:00 PM (EST)
- **Where:** Online
- **Team:** [Daniel Rojas Vidal](https://cerebralvalley.ai/u/darvcode)
- **GitHub:** https://github.com/darvcodev/hackathon-meta
- **Demo video:** https://youtu.be/rVMMJ_D1gXc
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1409

Live app: https://royalens.scirelabs.com

RoyaLens turns a phone photo into a coffee leaf rust measurement, a cherry ripeness count and a farm dashboard. Coffee leaf rust causes the largest economic losses in coffee worldwide. It starts as small spots under the leaf, and by the time a plot looks sick the harvest is at risk. Extension agents can't visit every farm every week, and picking unripe cherries lowers cup quality.

- Leaf rust scanner: % of leaf area affected, lesion count and a 5-level class aligned with Cenicafé's standard area diagram.
- Ripeness counter: finds every visible cherry, classifies it as green, turning, ripe or overripe, and says whether it's time to harvest.
- My farm: scans saved to plots, with a map, alerts, trends, incidence and severity.
- Assistant: answers using the grower's own scans, searches the web with citations, never gives chemical doses.
- Full English and Spanish support.

Results are single-photo estimates, not yet validated against agronomist field measurements.

## More from Meta Global AI Developer Hackathon

- [Siwi](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1406)
- [Tigers](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1407)
- [Pay Agentic Ai-Dhanish](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1408)
- [Lucky Passes](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1410)
- [Muse Live](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1411)
- [Project Checkpoint](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1412)

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