Touch sensitivity very low

[deltoro]

Hi,

Is there any way to increase touch sensitivity?

On my hardware, it takes a determined touch for anything to register. Dragging is really hard and not smooth at all ( e.g. the slider and dial in the widget demo are unusable - very jerky and requiring repeated backtracking to keep the movement going )

Thanks!

[deltoro]

Another observation:

I ran the selftest sketch and after pressing the blue targets, the screen display 4 white dots in the four corners;
- if I touch the screen (anywhere) at this point, I get a "touch: FAIL" message !

Could this mean the hardware is defective ?

[jamesbowman]

Sounds like the hardware is working fine - that is the way the selftest is meant to work. Any press outside the dot is a fail.

This is a resistive screen, unlike the capacitive screen on a phone. A touch with a plastic stylus works very well. Loading up the "sketch" demo lets you see touches. Many people find gentle pressure with a fingernail works quite well.

[deltoro]

Thanks! This is very helpful.

[yunfei]

A touch screen pen may be a very good choice if accuracy is what you concern.

[jamesbowman]

This is the stylus I use