Enclosures & cases

ESP32-C3 SuperMini case with BME280 sensor vents

A tiny room sensor enclosure for an ESP32-C3 SuperMini board (22.5 x 18 mm) paired with a BME280 breakout (about 15 x 12 mm). The board slides into 1 mm rails inside a 34 x 26 x 16 mm shell with a USB-C opening on one end, while the sensor sits in a separate pocket behind a wall of 1.2 mm horizontal louvres so air moves across it without heat from the ESP32 skewing the reading. Walls are 1.5 mm, the lid presses on with a friction lip, and a 4 mm hole on the back takes a screw or a 3M strip. Print the shell open-side up with no supports.

Sensor housings need to match your exact breakout, not someone else's. In SpeakCAD you describe the boards, preview the enclosure free in the browser, switch the pocket for a SHT31 or add a hole for a photodiode in the chat, and download the STL for ESPHome or Home Assistant builds.

Get it nowGenerate and preview for free, in your browser. A download costs 2 credits.

Model a small two-part sensor enclosure 34 x 26 x 16 mm with 1.5 mm walls, internal 1 mm rails for an ESP32-C3 SuperMini board 22.5 x 18 mm, a USB-C cutout, a separate 16 x 13 mm pocket for a BME280 breakout behind 1.2 mm louvred vents, a press-fit lid and a 4 mm rear screw hole.

Change any number to match what you measured. The AI keeps the rest of the design consistent, and small follow-up edits after a download are free.

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Make your esp32-c3 supermini case with bme280 sensor vents now

Nothing to install and no CAD skills needed. Describe it, watch it render, download the STL or 3MF and print it tonight.

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