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How to set the values of the Gain and Threshold

The Gain adjusts the signal strength injected by the Touch Controller on the Touch Sensor. Gain values range between 0 and 7.

Thicker glasses and bigger Touch Sensors will require a stronger signal (higher GAIN values).

The Threshold adjusts the threshold level of what is considered a touch. Values vary between 0 and 50.



How to adjust Gain and Threshold

  1. Set Gain to the lowest value ("0") and wait 2 seconds. Note: Every time the Gain value is changed you need to wait 2 seconds before you can touch the screen (a ‘do not touch’ image will flash for 2 seconds).
  2. Touch while increasing the Threshold until a good touch is detected. Drag the touch and continue to increase the Threshold until the drag is continuous in the whole Touch Sensor, by testing thoroughly both the center of the Touch Sensor and the borders. When the drag color changes it means that drag has been lost.
  3. If Threshold reached a maximum value, and a good touch experience hasn’t been achieved yet, increase the Gain one value and repeat the step number 2
  4. Keep repeating the steps 2 and 3 until you reach a good touch performance

Note 1: If you reach a good touch performance and you have false touches please check the Shield feature. If you do not have false touches you are ready to start the Geometric Calibration.


Note 2: See here what is considered a good touch performance

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  1. Tiago Barbosa

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