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Hardware deep dives, embedded firmware notes, software craft, and the occasional opinionated take. Filter by category or tag, search by keyword.
Run Node-RED 24/7 for Free on Render with Turso or Neon
Heroku killed its free tier. Here is how I run Node-RED 24/7 on Render for free, with flows saved to Turso or Neon so restarts lose nothing.
ESP32-Cam Live Stream Using WebSocket
Build a real-time video streaming system using the ESP32-CAM and WebSockets. This tutorial shows how to capture live video, stream it to a web browser with low latency, and create a simple wireless monitoring solution using the ESP32-CAM.
Deploying Node-RED into Heroku
Learn how to deploy Node-RED on Heroku and run your flows in the cloud without managing a dedicated server. This guide covers setup, configuration, deployment steps, and common issues to get your Node-RED instance online quickly.