https://hiltsu.codeberg.page/en/tags/esp32/Recent content in Esp32 on Jari HiltunenHugo -- gohugo.ioenThu, 30 Apr 2026 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/stevenson-shield-esp32-lorawan/Thu, 30 Apr 2026 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/stevenson-shield-esp32-lorawan/This is the enclosure side of my ESP32-based LoRaWAN weather station project. The electronics, firmware (MicroPython and C++), schematics and build instructions live in the lorawan repository on Codeberg. This post focuses on the mechanical design: a fully parametric Stevenson shield designed in Fusion360, intended for FDM printing in white PETG. What is a Stevenson Shield? A Stevenson screen (or shield) is a standard meteorological housing that protects sensors from precipitation and solar radiation while allowing free airflow.https://hiltsu.codeberg.page/en/posts/lorawan-mailbox-notifier/Sat, 25 Apr 2026 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/lorawan-mailbox-notifier/I built an ESP32-based device with a PIR sensor inside a mailbox that wakes from deep sleep and sends a notification via LoRaWAN.https://hiltsu.codeberg.page/en/posts/from-hobby-chickens-to-the-iot-world-part-4/Mon, 16 Dec 2024 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/from-hobby-chickens-to-the-iot-world-part-4/Design a screw‑free, magnet‑mounted 3D‑printed enclosure for BME280 sensors using Fusion 360. Learn parametric modeling, sliding fits, and component linking to monitor HVAC performance with MQTT, InfluxDB, and Grafana.https://hiltsu.codeberg.page/en/posts/from-hobby-chickens-to-the-iot-world-part-2/Mon, 25 Nov 2024 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/from-hobby-chickens-to-the-iot-world-part-2/Monitor HVAC performance with BME280 sensors, MQTT, InfluxDB, and Grafana. Learn how to detect anomalies like sauna heat spikes, filter clogs, and frost protection cycling. Real data from a Finnish home over one year.