how to change the check frequency of an egalax touchscreen

minzojian · 08-08-2019, 03:52 AM

I have an egalax resistive touchscreen, it works in a normal way, but if I touch it rapidly, for example, just lie it down and drop down a pen on it, it just no response.

I guess it maybe needs to adjust the check frequency to a high value, so that can notice the instantaneous touch (hit).

so, how to make it work in a high check frequency way?

I test the touchscreen in raspberrypi-3b

pan64 · 08-08-2019, 04:01 AM

probably this helps: https://wiki.ubuntu.com/Touchscreen.
You have carefully removed all the information from your post (like OS, hardware type and anything related).

minzojian · 08-08-2019, 04:37 AM

thanks for your reply, I checked the link you mentioned, but it's not helped
my touchscreen is working in a normal way, but what I want to learn is how to make it more sensitive, even an instantaneous touch can be detected