Hello i want to use a pencil as a mouse and keyboard with 7" touch screen but it only detect fingers
i bought this screen: https://es.aliexpress.com/item/32976393963.html?spm=a2g0o.order_list.0.0.3399194dPlh5Ws&gatewayAdapt=glo2esp
the OS im using is armbian
this is the link of the screen:
http://www.lcdwiki.com/7inch_HDMI_Display-C?spm=a2g0o.detail.1000023.18.7f2f1448V10EEZ
i have other 4" screen with a raspberry pi 2 and it works with pencil.
to be more specific the 7inch screen work only with fingers not pencil.
what can i do?