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Every guide on the site, newest first. Each one has a full parts list, wiring, and code — filter by what's on your bench.

ESP32

ESP32 Air Quality Sensor (That Actually Works)

I built a stupid simple, local-only air quality monitor because I refuse to let tech bros lock my living room humidity behind a $15/month subscription.

JUL 8, 2026 · 2 MIN

ESP32

The Weekend ESP32 Internet Radio: A Full Build Guide

Build a streaming internet radio from a $9 ESP32 in one weekend. Complete parts list, wiring diagram, working code, and honest Amazon part picks — beginner friendly.

JUN 28, 2026 · 18 MIN

GEAR GUIDES

Best Soldering Irons for Beginners (2026)

I've melted through six soldering irons in ten years. The three worth buying in 2026 — best overall, best budget, best bench upgrade — and the ones to skip.

JUN 14, 2026 · 9 MIN