> ## 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.

# LED Feedback System

> Understanding the LED color indicators during training sessions

Your Deepthroat Trainer uses a strip of RGB LEDs to provide instant visual feedback during training. The colors indicate your current position relative to the target zone, helping you adjust in real-time without looking at the display.

## LED colors during training

| Color      | Meaning            | Action                                  |
| ---------- | ------------------ | --------------------------------------- |
| **Green**  | In the target zone | Hold this position — you're doing great |
| **Yellow** | Ahead of target    | Move deeper to reach the target zone    |
| **Red**    | Behind target      | You've gone too deep or lost position   |

<Tip>
  Keep your focus on maintaining green. The LED provides faster feedback than reading the display, making it easier to stay in rhythm.
</Tip>

## Position states explained

The trainer continuously monitors your position and categorizes it into three states:

### In Window (Green)

Your current position is within the target window defined by your training segment. This is where you want to be.

* For **Repetition** and **Bounce** modes: You're matching the target movement pattern
* For **Endurance** mode: You're holding at the correct depth
* For **Freeform** mode: You're maintaining the target RPM range

### Ahead (Yellow)

You're shallower than the target position. The trainer is waiting for you to move deeper.

* In paced modes, this often means you're moving faster than the target
* Slow down and let the target catch up to your position

### Behind (Red)

You've moved past the target zone, typically too deep.

* In paced modes, this means you've moved ahead of the target timing
* Pull back and re-sync with the target pattern

## LED colors at other times

| Context          | Color            | Meaning                               |
| ---------------- | ---------------- | ------------------------------------- |
| Welcome/Idle     | Blue             | Device is ready and waiting           |
| Session Complete | Magenta          | Training finished — well done!        |
| Failed Segment   | Red              | Segment failed (if Pass/Fail enabled) |
| Grade Display    | Green/Yellow/Red | Reflects your grade percentage        |

## Grade screen colors

After completing a segment, the LED color reflects your performance:

| Grade         | LED Color |
| ------------- | --------- |
| 70% and above | Green     |
| 40% – 69%     | Yellow    |
| Below 40%     | Red       |

<Note>
  A grade of exactly 69% shows green as a special case (Nice!).
</Note>

## Using LED feedback effectively

### During Repetition Mode

Watch for the LED to stay green throughout each rep. If it flickers to yellow or red, adjust your pace to better match the on-screen target.

### During Endurance Mode

The LED should remain solid green while holding position. Any flicker indicates you're drifting out of the target zone.

### During Freeform Mode

Green indicates you're maintaining the target RPM. Yellow or red means you need to adjust your pace.

### During Bounce Mode

Since Bounce requires controlled movement in both directions, watch for the LED to stay green through both the insertion and withdrawal phases.

## Troubleshooting

<AccordionGroup>
  <Accordion title="LED doesn't light up during training">
    * Check that the device is powered on and not in a menu screen
    * The LED only activates during active training segments
    * Try power-cycling the device
  </Accordion>

  <Accordion title="LED flickers rapidly between colors">
    You're moving near the boundary of the target zone. Try to settle into a more stable position well within the zone rather than at its edge.
  </Accordion>

  <Accordion title="LED stays one color regardless of movement">
    * Ensure calibration was completed correctly
    * The sensor may not be detecting movement — check toy positioning
    * Try recalibrating from the settings
  </Accordion>
</AccordionGroup>

## Related guides

<CardGroup cols={2}>
  <Card title="Training Modes" icon="dumbbell" href="/dtt/training-modes/introduction">
    Learn how each training mode uses position feedback.
  </Card>

  <Card title="Sensor Limits" icon="ruler" href="/dtt/technical/sensor-limits">
    Technical specifications for the distance sensor.
  </Card>
</CardGroup>