# Pollux Labs

> Tutorials, projects and guides for DIY electronics — Arduino, ESP32, Raspberry Pi, audio and smart home builds for makers.

Pollux Labs publishes practical, hands-on content for hobbyists and learners building with microcontrollers and electronics. Free theoretical tutorials explain components and concepts; project guides walk through complete builds (some are members-only via Pollux Labs membership).

## Pages

- [Home](/): Latest projects, tutorials and categories.
- [Projects](/projects): Practical, step-by-step build guides.
- [Tutorials](/knowledge): Free theoretical knowledge blocks on components and concepts.
- [Categories](/categories): Browse content by topic.
- [Maker Book](/maker-book): Reference sketches and snippets for makers.
- [Membership](/membership): Pollux Labs membership — full access to premium project guides and learning paths.

## Categories

- [Arduino](/categories/arduino): Arduino UNO, Nano and R4 projects and tutorials.
- [ESP32](/categories/esp32): ESP32 projects, WiFi and Bluetooth builds.
- [ESP8266](/categories/esp8266): ESP8266 / NodeMCU projects.
- [Electronics Basics](/categories/electronics-basics): Foundational electronics knowledge.
- [Electronic Components](/categories/electronic-components): Component guides (sensors, ICs, modules).
- [Audio](/categories/audio): Audio electronics and DSP projects.
- [Guitar Pedals](/categories/guitar-pedals): DIY guitar effect pedal builds and theory.
- [Smart Home](/categories/smart-home): Home automation and IoT projects.
- [Communication](/categories/communication): Wired and wireless communication protocols.
- [Artificial Intelligence](/categories/artificial-intelligence): AI and ML on microcontrollers and edge devices.

## Tools

- [RC Filter Calculator](/tools/rc-filter): Interactive RC low/high-pass filter designer with Bode plot.
- [Voltage Divider Calculator](/tools/voltage-divider): Resistor voltage divider calculator.
- [LED Matrix Tool](/tools/led-matrix): Design patterns for the Arduino UNO R4 WiFi 12×8 LED matrix.

## Optional

- [Legal Notice](/legal-notice): Imprint and contact info.
- [Privacy Policy](/privacy-policy): Data handling and cookie policy.