Fall is here, and that means heating season will soon arrive. If you have an acoustic guitar, you know that humidity — or lack thereof — is the enemy. That's why I keep three plastic film canisters ...
Tired of condensation wrecking your shed tools or greenhouse gear? I built a no-frills ESP32 + DHT22 node that wakes every 15 minutes, grabs temp/humidity data, beams it over Wi-Fi, and sleeps—running ...
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