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

# Technical Documentation

> In-depth technical guides for your Deepthroat Trainer device

This section provides technical resources for understanding how your Deepthroat Trainer works under the hood. Find detailed explanations of device behavior, sensor specifications, and troubleshooting guides.

## Device operation

<CardGroup cols={2}>
  <Card title="Device States & Screens" icon="display" href="./device-states">
    Understand all the screens and states your trainer displays during operation.
  </Card>

  <Card title="Button Controls" icon="hand-pointer" href="./button-controls">
    Learn how to use the front button to navigate and control your trainer.
  </Card>

  <Card title="LED Feedback System" icon="lightbulb" href="./led-feedback">
    Understand what the LED colors mean during training sessions.
  </Card>

  <Card title="Calibration" icon="sliders" href="./calibration">
    How to calibrate your trainer for accurate position tracking.
  </Card>
</CardGroup>

## Specifications

<CardGroup cols={2}>
  <Card title="Sensor Specifications" icon="ruler" href="./sensor-limits">
    Technical limits and capabilities of the distance sensor.
  </Card>

  <Card title="Offline Mode" icon="wifi-slash" href="./offline-mode">
    Using your trainer without an internet connection.
  </Card>

  <Card title="Firmware Updates" icon="download" href="./firmware-updates">
    How your trainer receives and installs software updates.
  </Card>

  <Card title="Error Codes" icon="triangle-exclamation" href="./error-codes">
    All error messages and how to resolve them.
  </Card>
</CardGroup>

## Software updates

<Card title="Software 2.0 Preview" icon="sparkles" href="/dtt/software-2.0-preview">
  Explore new firmware capabilities and upcoming features.
</Card>

## Troubleshooting

When your Trainer encounters an issue, it displays an error code on screen:

<Card title="E-DTT-1: No Internet" icon="wifi-exclamation" href="../errors/e-dtt-1">
  Your device connected to Wi-Fi but cannot reach the server. Learn how to adjust firewall and router settings.
</Card>

For a complete list of error codes and messages, see the <a href="./error-codes">Error Codes</a> guide.

## Need additional help?

If you've followed the troubleshooting steps and your issue persists, contact our support team with:

* The specific error code displayed on your device
* Your Trainer ID (shown on startup)
* A brief description of the steps you've already tried

<Tip>
  Before reaching out, try restarting both your Trainer and router. Many connectivity issues resolve after a fresh reboot.
</Tip>