Fine-Tuning – Skin Zeeto

Calibration for Skin Zeeto sensors follows the same process used for Skin Ultra and Skin Fit, but the Fine-Tuning settings are different and more precise.
These parameters allow advanced adjustment of signal strength, sensitivity, and large-object (Massive) detection.

Fine-Tuning Parameters

Gain (0–255)

Gain defines the signal strength sent from the Touch Controller to the Touch Sensor.

• Higher Gain = stronger signal (useful for thicker glass or larger sensors).

• Lower Gain = weaker signal (reduces noise and improves stability).

💡 Start with a moderate Gain (e.g., 100–120) and adjust gradually. Higher values increase signal strength but can introduce electromagnetic interference (EMI) if set too high.

Threshold (0–100)

Threshold defines the sensitivity of the sensor — how easily it detects a touch.

• Lower values = less sensitive (reduces false touches).

• Higher values = more sensitive (may detect small or light touches).

⚠️ Avoid using very high Threshold values, as they can reduce touch accuracy. Always increase Gain and Threshold gradually together until smooth, consistent touch performance is achieved.

Massive Detection Parameters

The Massive parameters replace the older “Palm Rejection” terminology. They determine how the sensor handles large-area touches like hands, arms, or sleeves resting on the display.

Massive Min Size

Defines the minimum size a detected touch must have to be considered a Massive.

• If this value is too low, normal finger touches may be mistaken for a palm and rejected.

• If it’s too high, larger objects may still be detected as normal touches.
  

• The default value is 100.

✅ Recommended: Start with a midrange value and adjust gradually until palms and arms are correctly rejected without affecting normal finger touches.

Massive Clearance

Defines the area around a detected Massive where additional touches will be ignored.

• Higher values increase the blocked area, reducing false touches caused by nearby fingers.

• Lower values make the rejection zone smaller, which can improve responsiveness.

💡 Increase Massive Clearance only as much as needed — excessive values may block valid touches close to the hand or arm.

Recommended Tuning Approach

1. Start with low Gain and Threshold values.

2. Gradually increase both until smooth, stable touch performance is achieved.

3. Adjust Massive Min Size and Massive Clearance to filter out palm or arm touches without losing finger sensitivity.

4. Test across the entire sensor area — especially near edges and corners.