April 2021

DJI Protocol – Packet Structure

Published by Thomas Christof on 24. April 2021

Packet Structure UDP Header Wifi-Header Payload-Header Payload Commands Operator ➔ Drone Status Protocol-Details Blog-Entry ✓ Connection Handshake Day 6 Drone ➔ Operator Status Protocol-Details Blog-Entry ✓ Connection Handshake Day 6

DJI Protocol – Day 4 – Progress Report

Published by Thomas Christof on 21. April 2021

We dived into a specific packet-type last time, but couldn’t extract each and every byte purpose. However, we were able to identify one important thingy: 0x00-0x01. Those two bytes indicate the packet’s content. Hence, now we are capable of assigning each sent packet (operator to drone) to a specific group, based on their unique identifier. …

Flutter PWA QR-Code Reader (on mobile!)

Published by Thomas Christof on 20. April 2021

There are a couple of JS based QR-Code readers out there. As an example this that bla zonkh so why bother implementing yet another solution? Pretty damn easy: none of them work on the mobile web-browsers. I spend more time trying to get them running on mobile than I have spent on my own implementation. …