{"id":8551,"date":"2026-02-20T14:59:12","date_gmt":"2026-02-20T13:59:12","guid":{"rendered":"https:\/\/willem.aandewiel.nl\/?p=8551"},"modified":"2026-03-16T14:51:16","modified_gmt":"2026-03-16T13:51:16","slug":"measuring-fine-dust-for-makers-esp32-pms5003","status":"publish","type":"post","link":"https:\/\/willem.aandewiel.nl\/index.php\/2026\/02\/20\/measuring-fine-dust-for-makers-esp32-pms5003\/","title":{"rendered":"Measuring Fine Dust for Makers: ESP32 + PMS5003"},"content":{"rendered":"\n

A simple project with surprisingly many learning points.<\/p>\n\n\n\n

344 keer bekeken \/ views<\/p>\n\n\n\n

Een Nederlandse vertaling van de post kunt u hier<\/a> vinden.<\/p>\n\n\n\n

Fine dust is one of those topics you usually only read about when it comes to \u201caverages\u201d<\/em> and \u201cstandards.\u201d<\/em> But what happens in your home<\/strong>, in your workshop, or while soldering? <\/p>\n\n\n

\n
\"\"<\/a><\/figure>\n<\/div>\n\n\n



With an ESP32 and a PMS5003 air sensor I built a simple fine-dust meter. Hardware-wise almost trivial \u2014 but along the way I encountered a few interesting (and instructive) pitfalls.<\/p>\n\n\n\n

<\/div>\n\n\n\n

Why measure it yourself?<\/strong><\/h2>\n\n\n
\n
\"\"<\/a><\/figure>\n<\/div>\n\n\n

As a maker you want to see, measure, and understand things. Fine dust (PM10 and especially PM2.5) consists of microscopic particles that can reach deep into the lungs. You can\u2019t see them, often can\u2019t smell them, but they do<\/em> have an effect on your health \u2014 especially with long-term exposure. Measuring it yourself makes it concrete:

<\/p>\n\n\n\n