Topic hub
Raspberry Pi projects & guides
Printer controllers, offline AI boxes, and Pi + ESP32 smart-home brains.
Tool Review: Mosquitto as a Workshop MQTT Broker (Measured Lab Notes)
Review standard: see /review-standard. This page states a measurement protocol you should re-run on your Pi — do not invent latency numbers without a stopwatch/log. Versions & hardware under test ItemValue …
Raspberry Pi 5 as a 3D Printer Controller — Setup Guide (Ops-Focused)
Pi is the host: Klipper host + UI or OctoPrint. MCUs still run real-time stepper work — wire and power accordingly. Pair with OrcaSlicer review and the print farm AI stack (AI for notes only — never auto-flash u…
Raspberry Pi + ESP32 Mesh for Smart Home (Local MQTT Architecture)
Pi runs the broker; ESP32 nodes publish sensors and subscribe to commands. LAN only for v1. Companion to the paid ESP32 + Pi Project Bundle and free Pi weekend PDF. Goal: one broker, one publishing node, one com…
Klipper Macros You Actually Use Every Print
Start/end gcode, filament change, and fail-safe shutdown macros.
When a Pi Zero 2 W Beats a Pi 5
Cost, power, and camera/GPIO tradeoffs for maker deployments.