All Opus 5.5 videos › Apps & UI

Home-security drone app that tracks a person and saves footage

by Codez (@0xCodez) · Oct 26, 2026

I turned my DJI Mavic into a home security drone with REA & Opus 5.5. this f*cking is insane.. I reverse-engineered my DJI drone with Opus 5.5 no cloud. no GPS on the target. it all runs on the phone. iPhone or Android. here's the build step by step: step 1 → plug a spare phone into the Mavic remote and paste the prompt below into Claude Code on Opus 5.5 step 2 → Opus checks your drone against the DJI Mobile SDK v5 list. not on it? stop there. no firmware hacks step 3 → it builds a small app on the official DJI SDK: Swift for iPhone, Kotlin for Android step 4 → sync with the alarm: Home Assistant sees it trigger → push to your phone → one tap "Launch" step 5 → eyes: a tiny YOLO model on the phone's chip. Core ML on iPhone, LiteRT on Android step 6 → memory: a Kalman filter. he runs behind a fence → LOCKED → COASTING → re-locks on the same ID step 7 → hands: Virtual Stick at 10 Hz. box center → yaw, box size → distance, never closer than 8 m step 8 → at the property line it stops, climbs to 30 m and keeps the camera on him until he's out of sight step 9 → lands back on the pad. the clip with track, distance and timestamps is already on your phone the alarm wakes you up. the drone already knows where he went... Find full prompt below Then, read the article below on how to reverse-engineer anything with Opus 5.5.
— Codez (@0xCodez) Oct 26, 2026

Prompt

The author shared the full prompt.

This is my own DJI drone, my own phone, my own alarm system, my own property and my own laptop.

I want my alarm to launch my drone: when the alarm triggers, my phone gets a push with a "Launch" button. 

One tap and the drone takes off from its pad in the yard, finds the person running from my house, follows and films them up to my property line, keeps the camera on them from above until they're out of sight, then lands and saves the clip.

I'll register the DJI developer account and paste the App Key myself. I'll approve every install and every flight.

I authorize you to set up the project on my laptop, build and install the app on my phone, create the Home Assistant automation, and run everything in the DJI simulator. Every change must be reversible.

I've attached a photo of the drone's About screen in DJI Fly, told you my phone (iPhone or Android) and my alarm brand.

Done means: the alarm triggers a test push, the app passes a full simulated chase in the DJI simulator, and one real test where I set off my own alarm and walk out of my own door, while I watch every step.

Prompt by @0xCodez, from their reply

Category: Apps & UI
Stack: AI video
Made with: DJI SDK, Claude Code, Home Assistant, Swift, Kotlin, YOLO, Core ML, LiteRT, Kalman filter, Virtual Stick
From the author: Full simulated chase plus one real test; no firmware hacks.
On X: 2.2K likes · 165K views · 2.6K saves

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