--- title: DIY ESP32-P4 weather station & air quality monitor... description: A hobbyist named Harald Kreuzer built a DIY weather station and air quality monitor around the ESP32-P4-Module-DEV-KIT-C SBC, featuring a 10.1-inch LVGL... canonical: https://daily.dev/posts/diy-esp32-p4-weather-station-air-quality-monitor-connects-to-lora-and-esp-now-sensors-various-wea-fyniccq3k twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: DIY ESP32-P4 weather station & air quality monitor connects to LoRa and ESP-NOW sensors, various weather APIs | daily.dev og:description: A hobbyist named Harald Kreuzer built a DIY weather station and air quality monitor around the ESP32-P4-Module-DEV-KIT-C SBC, featuring a 10.1-inch LVGL... og:url: https://daily.dev/posts/diy-esp32-p4-weather-station-air-quality-monitor-connects-to-lora-and-esp-now-sensors-various-wea-fyniccq3k og:image: https://api.daily.dev/og/posts/FYNIccQ3k.png og:image:alt: DIY ESP32-P4 weather station & air quality monitor connects to LoRa and ESP-NOW sensors, various weather APIs og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # DIY ESP32-P4 weather station & air quality monitor connects to LoRa and ESP-NOW sensors, various weather APIs **[CNX Software](https://daily.dev/sources/cnx-software)** · [@cnxsoft](https://daily.dev/cnxsoft) · 4 min read · 0 upvotes · 0 comments ## Summary A hobbyist named Harald Kreuzer built a DIY weather station and air quality monitor around the ESP32-P4-Module-DEV-KIT-C SBC, featuring a 10.1-inch LVGL dashboard, a Sensirion SEN66 sensor for particulate matter, CO2, VOC and NOx, plus a BH1750 light sensor and DFRobot C4001 mmWave presence sensor. The main unit connects wirelessly to a growing family of LoRa and ESP-NOW sensor nodes (temperature/humidity/pressure, radiation counters) built on Heltec boards and CubeCell modules, and can optionally pull weather forecasts from Open-Meteo, OpenWeatherMap, or Visual Crossing without needing any cloud account. Source code is on GitHub (ESP-IDF for most modules, Arduino/PlatformIO for CubeCell), UI was designed with the open-source EEZ Studio, and 3D-printable enclosures for the new variant have not yet been released. Estimated parts cost for the main unit alone is at least $185, making it a project for learning rather than saving money over commercial alternatives. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [5 ESP32 projects a total beginner can finish in an afternoon](https://daily.dev/posts/5-esp32-projects-a-total-beginner-can-finish-in-an-afternoon-mo2inkqke) · XDA Developers · 1 upvotes · 0 comments - [I built a cheap ESP32 weather station to automate my Home Assistant server](https://daily.dev/posts/i-built-a-cheap-esp32-weather-station-to-automate-my-home-assistant-server-vjfkl9qcz) · XDA Developers · 0 upvotes · 0 comments - [You, too, can build this ESP32 e-Ink environmental monitor for temperature and humidity tracking](https://daily.dev/posts/you-too-can-build-this-esp32-e-ink-environmental-monitor-for-temperature-and-humidity-tracking-j7mfo6lu9) · XDA Developers · 1 upvotes · 0 comments --- Tags: [#iot](https://daily.dev/tags/iot), [#lora](https://daily.dev/tags/lora) [View this post on daily.dev](https://daily.dev/posts/diy-esp32-p4-weather-station-air-quality-monitor-connects-to-lora-and-esp-now-sensors-various-wea-fyniccq3k) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"DIY ESP32-P4 weather station & air quality monitor connects to LoRa and ESP-NOW sensors, various weather APIs","url":"https://daily.dev/posts/diy-esp32-p4-weather-station-air-quality-monitor-connects-to-lora-and-esp-now-sensors-various-wea-fyniccq3k","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/diy-esp32-p4-weather-station-air-quality-monitor-connects-to-lora-and-esp-now-sensors-various-wea-fyniccq3k"},"datePublished":"2026-09-03T04:59:04.021Z","dateModified":"2026-09-04T01:00:12.969Z","description":"A hobbyist named Harald Kreuzer built a DIY weather station and air quality monitor around the ESP32-P4-Module-DEV-KIT-C SBC, featuring a 10.1-inch LVGL...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/5146a99cb98600ce57f0864275845e94?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/5146a99cb98600ce57f0864275845e94?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"CNX Software","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Person","name":"CNXSoft","url":"https://daily.dev/cnxsoft","image":"https://avatars.githubusercontent.com/u/1366138?v=4","interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"EndorseAction"},"userInteractionCount":440}},"commentCount":0,"discussionUrl":"https://daily.dev/posts/diy-esp32-p4-weather-station-air-quality-monitor-connects-to-lora-and-esp-now-sensors-various-wea-fyniccq3k","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"iot,lora","timeRequired":"PT4M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"CNX Software","item":"https://daily.dev/sources/cnx-software"},{"@type":"ListItem","position":3,"name":"DIY ESP32-P4 weather station & air quality monitor connects to LoRa and ESP-NOW sensors, various weather APIs"}]} ```