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Rocketry

8 posts in this category

Rocketry
Inside the ESP32 Rocket Launch Controller — Firmware, Protocol, and Architecture
2026-09-10

In the previous post I showed you the wireless rocket launch controller I built for VRO — two ESP32-S3 units, an encrypted radio link, and a handful of relays between an operator’s thumb and a …

Rocketry
A Wireless Rocket Launch Controller on ESP32s
2026-09-10

The last time I built launch electronics for a rocket, it was 2008 and the brain of the thing was a PIC16F88 running a four-channel flight timer. Eighteen years later I found myself building something …

Rocketry
PML Intruder Level 1 Certification Flight
2026-03-13

After months of preparation, I successfully completed my Tripoli Level 1 high-power rocketry certification on March 1, 2026, at the Tripoli The Netherlands launch site in Exloo. This post documents …

Rocketry
Ballistic Evaluation Motor test 3
2011-06-19

This is a report of the third firing of the Ballistic Evaluation motor constructed by the Vlaamse Raket Organisatie (VRO). During the second firing a number of issues surfaced, which were since …

Rocketry
Ballistic Evaluation Motor test 2
2010-12-23

The previous tests with the Ballistic Evaluation Motor (BEM) failed because the motor failed to ignite. To avoid ignition problems it was decided to increase the throat diameter from 2 or 3mm to 6mm. …

Rocketry
Static Test Controller
2010-11-23

Deze pagina beschrijft de ontwikkeling van een geïntegreerd meetsysteem voor statische motorttesten. Deze electronica interfacet met de Ballistische Evaluatie Motor, leest hier de meetwaarden uit en …

Rocketry
Load cell amplifier
2008-08-19

This page describes the construction and operation of a device for testing rocket motors. It allows the recording of the thrust generated by the motor during a static test. The recorded data is then …

Rocketry
16F88 Rocket timer
2008-08-04

This is a compact, programmable 4-channel rocket timer, based on the Microchip PIC 16F88 microcontroller. It features accelerometer or reed switch lift-off detection and 4 pyro channels that can be …