Author

Derock X.

I build things that have to survive contact with the real world: a 3.4 GHz video downlink for a rocket, competition robots, a home server rack, the occasional CTF flag. This is where I write down how they work.

more about me at derock.dev →

Recent posts

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U7

Custom Long Range Live Video Solution

The live video solution for Duke AERO's 2026 rocket: Devils Advocate. Running on 3.4GHz using RaptorQ and Reed-Solomon

  • rf
  • duke-aero
U6

2025 Sunshine CTF Solutions Writeup

A writeup of all my solutions for the 2025 Sunshine CTF challenges.

U5

VEX Robotics Programming - PID

PID is one of the most fundamental feedback control systems used in robotics. This guide will teach you what it is, how it works, and how to implement it in your VEX Robotics Competition robot.

Recent bits

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Short TIL-style findings: quick discoveries, tips, and observations that don't warrant a full post.

TP1

Transmit DATV on a wire using a Pi

Cool program that allows you to transmit digital DATV (h264 + qpsk + reed-solomon) without an SDR using just a Raspberry Pi and a wire.

  • RF