LN-008Build Log
Beta Systems and Visual Record
Echo Protocol reaches a documented beta checkpoint with timed operations, staged contact analysis, mobile cartography refinements, and a public visual record.
Project // Echo Protocol
Read note →Field journal
Lab Notes
The working record of HollowTech Labs: builds, experiments, failures, discoveries, test results, and the details worth remembering.
Entries // 08Public engineering log
LN-003Technical Note
Project Documentation Standard
A common HollowTech Labs format for recording project work, decisions, experiments, failures, tests, and discoveries.
LN-002Build Log
Building the Project Record System
HollowTech Labs gains structured project records, milestones, resources, activity history, media galleries, and a mobile-readable public interface.
LN-007Experiment
Radio Gameplay Prototype
LoRaQuest tests a multiplayer game loop over low-bandwidth LoRa links using Heltec player nodes and a T-Deck command station.
Project // LoRaQuest
Read note →LN-006Technical Note
C64 Interface Architecture
HollowCore establishes the electrical direction for connecting a Commodore 64 User Port to a Raspberry Pi Pico and modern storage.
Project // HollowCore
Read note →LN-005Technical Note
Communications Buoy System Architecture
The Communications Buoy takes shape as a deployable ESP32-class recovery node for location, itinerary, sensor, and LoRa data.
Project // Communications Buoy
Read note →LN-004Build Log
Live Communications and Transport Direction
SCUT moves beyond node discovery and messaging with working audio/video calling and a transport-independent path toward LAN, Bluetooth, and LoRa.
Project // SCUT
Read note →LN-001Technical Note
Opening the Lab Notebook
Why HollowTech Labs keeps a public engineering notebook, and what belongs in it.