ESP32 Gallery

MQ135 AIR QUALITY MONITOR WITH OLED / ESP32 APPLICATION

MQ135 Air Quality Sensor

MQ-135 Air Quality Sensor Board CO2 Calibration

MQ135 Air Quality Sensor
Open project preview ↗

Hardware

Boards: ESP32

Supported hardware: ESP32. Confirm the exact board revision and pin map in the upstream repository.

What the source supports

Upstream evidence: Reviewed from public README media at commit b01984afdb55 under MIT. Firmware was not executed.

Media credit & rights

Upstream project media · rights remain with its owner · Credit: Bobbo117

Screenshots decoded from the upstream README at a pinned commit. Repository code and firmware were not executed; the license texts are included in the preview package.

View original source ↗ Copyright & removal · Reviewed

More projects on these boards

AIDlink Acid Box Acidportal AgentScreen Arduino 3d Lidar Arduino Tesla Seat

Source repository ↗

Are you the author? Add a badge

Paste this into the project README. It links to this project's page.

[![Listed on ESP32 Gallery](https://esp32gallery.com/badge.svg)](https://esp32gallery.com/projects/bobbo117-mq135-air-quality-sensor/)
<a href="https://esp32gallery.com/projects/bobbo117-mq135-air-quality-sensor/"><img alt="Listed on ESP32 Gallery" src="https://esp32gallery.com/badge.svg"></a>

Browse all projects

See what an ESP32 project looks like, and whether it runs on your board.

Sort

FILTERS

Browse by form factor. Check the exact board, chip and peripherals before installing.

MADE SOMETHING?

Give your project a little spotlight.

Repository links do not imply author endorsement or verified hardware compatibility. Check the upstream safety guidance before powering or flashing a build.

Try it

Project source ↗
Build & safety

Open project page ↗
Are you the author? Add a badge

Paste this into the project README. It links to this project's page.

FROM YOUR WORKBENCH

Small board.
Big idea.

Share what you've made.

Automatic checks start now. Most reviews finish in 1–3 days.

Prefer GitHub? Open an issue ↗