> ## Documentation Index
> Fetch the complete documentation index at: https://mintlify.com/wokwi/wokwi-docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Welcome to Wokwi

> Online electronics and microcontroller simulator for Arduino, ESP32, Raspberry Pi Pico, STM32, and more

Wokwi is an online electronics simulator that lets you simulate Arduino, ESP32, STM32, Raspberry Pi Pico, and many other popular boards, parts, and sensors directly in your browser. No installation required, no waiting for components to arrive—just instant hardware simulation.

<CardGroup cols={2}>
  <Card title="Start Simulating" icon="play" href="/quickstart">
    Create your first simulation in minutes
  </Card>

  <Card title="Browse Parts" icon="microchip" href="/parts/diagram-format">
    Explore 100+ supported components
  </Card>

  <Card title="Build Custom Chips" icon="code" href="/chips-api/getting-started">
    Extend Wokwi with custom components
  </Card>

  <Card title="Integrate with VS Code" icon="window" href="/vscode/getting-started">
    Simulate projects from your IDE
  </Card>
</CardGroup>

## Why Wokwi?

<AccordionGroup>
  <Accordion title="Start instantly in your browser">
    No waiting for components or downloading large software. Your browser has everything you need to start coding your next IoT project in seconds.
  </Accordion>

  <Accordion title="Mistakes won't break anything">
    You can't destroy virtual hardware. Experiment freely without worrying about frying components. Unlike real hardware, you can always undo.
  </Accordion>

  <Accordion title="Easy sharing and collaboration">
    Share your project with a single link. Get help, feedback, and collaborate with others instantly.
  </Accordion>

  <Accordion title="Unlimited virtual hardware">
    Use as many parts as you need without worrying about cost, stock, or scavenging parts from old projects.
  </Accordion>
</AccordionGroup>

## Unique Features

<CardGroup cols={2}>
  <Card title="WiFi Simulation" icon="wifi" href="/guides/esp32-wifi">
    Connect your simulated ESP32 projects to the internet with MQTT, HTTP, NTP, and more
  </Card>

  <Card title="Logic Analyzer" icon="chart-line" href="/guides/logic-analyzer">
    Capture and analyze digital signals (UART, I2C, SPI) in your simulations
  </Card>

  <Card title="Advanced Debugging" icon="bug" href="/guides/gdb-debugging">
    Use GDB for powerful Arduino and Raspberry Pi Pico debugging
  </Card>

  <Card title="SD Card Support" icon="sd-card" href="/parts/wokwi-microsd-card">
    Store and retrieve files from virtual SD cards in your code
  </Card>

  <Card title="Custom Chips API" icon="cube" href="/chips-api/getting-started">
    Create your own sensors, displays, and custom hardware in C, Rust, or Verilog
  </Card>

  <Card title="VS Code Extension" icon="code" href="/vscode/getting-started">
    Simulate embedded projects directly from Visual Studio Code
  </Card>
</CardGroup>

## Quick Examples

Here are some things you can build with Wokwi:

* [Arduino Uno Hello World](https://wokwi.com/projects/322062421191557714) - Classic blink example
* [ESP32 LED Blink](https://wokwi.com/projects/305566932847821378) - Get started with ESP32
* [ATtiny85 Weather Monitor](https://wokwi.com/projects/292900020514980360) - Compact sensor project
* [32 Servos with Arduino Mega](https://wokwi.com/projects/305336312628511297) - Control multiple motors
* [LED Matrix Animation](https://wokwi.com/projects/320579687608746578) - FastLED effects
* [MicroPython on Pi Pico](https://wokwi.com/projects/300210834979684872) - 7-segment counter

## Supported Hardware

Wokwi supports a wide range of microcontrollers and components:

**Microcontrollers**: Arduino Uno, Nano, Mega · ESP32, ESP32-C3, ESP32-S2, ESP32-S3 · Raspberry Pi Pico · STM32 · ATtiny85

**Components**: 100+ parts including sensors (DHT22, BME280, MPU6050), displays (LCD, OLED, 7-segment), LEDs (NeoPixel, LED strips), motors, and more

[View all supported hardware →](/supported-hardware)

## Pricing

Wokwi is **free for personal use**. For commercial users and professionals, check out the [pricing page](https://wokwi.com/pricing).

## Join the Community

Get help, share projects, and connect with other makers:

* [Discord Community](https://wokwi.com/discord) - Chat with the Wokwi community
* [GitHub](https://github.com/wokwi) - Contribute to open source projects
* [Blog](https://blog.wokwi.com) - Tutorials and project inspiration