nocci [cyberpunk'd]<p><span>Over the past few days, I "channeled" my inner nerd into building an automated radiation detection system using open-source tools. <br><br>The device combines an ESP32 running </span><a href="https://punk.cyber77.de/tags/ESPHome" rel="nofollow noopener noreferrer" target="_blank">#ESPHome</a> for sensor data collection, my <a href="https://punk.cyber77.de/tags/HomeAssistant" rel="nofollow noopener noreferrer" target="_blank">#HomeAssistant</a> for centralized smart home integration, and <a href="https://punk.cyber77.de/tags/NodeRED" rel="nofollow noopener noreferrer" target="_blank">#NodeRED</a><span> for automating hourly Fediverse updates via a bot account <br><br></span><a href="https://punk.cyber77.de/@Radiation_SL" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@Radiation_SL</a> (since this Geiger counter is located in northern Germany ( <a href="https://punk.cyber77.de/tags/Schleswig" rel="nofollow noopener noreferrer" target="_blank">#Schleswig</a><span> )<br><br>Technical Breakdown:<br><br>Sensor: Radiation D-v1.1 (CAJOE) - radiation detector<br><br>Connectivity: ESP32 transmits via Wi-Fi to Home Assistant<br><br>Case: </span><a href="https://punk.cyber77.de/tags/3dPrinting" rel="nofollow noopener noreferrer" target="_blank">#3dPrinting</a><span> the case (photo) - base is black and the lid is blue and shows the logo of "Fallout" (pc game/ TV series)<br><br>Automation: Node-RED flow formats data into ActivityPub messages<br><br>Decentralized Sharing: Posts include μSv/h readings<br><br>While this started as a hardware tinkering project, recent global events — nuclear rhetoric in conflict zones, aging power plants, and insufficient transparency in environmental monitoring — made me realize decentralized citizen science could play a crucial role. <br><br>Open-source tools eliminate single points of failure, and Fediverse integration ensures censorship-resistant data sharing.<br><br>Feel free to follow my bot account I mentioned above, if you are interested.<br><br>If I can find some time I will write a blogpost about the build process and link it in the bio / or just toot about it.<br><br></span>:boost:</p>