Hi Murat, All you need to do is to define:
CONFIG_INPUT_TOUCHSCREEN (and enable your touchscreen driver) and CONFIG_EXAMPLES_LVGLDEMO_CALIBRATE Your touchscreen device needs to be at /dev/input0 Look at apps/examples/lvgldemo, it is very straightforward. If your touchscreen is not /dev/input0, you need to setup CONFIG_EXAMPLES_LGVLDEMO_DEVPATH with a new device path (i.e. /dev/touch2). BR, Alan On 8/3/21, murat tologlu <mtolo...@hotmail.com> wrote: > Hi @Barbiani, > > I got a 3.2" resistive touch panel from Buydisplay, however I would like to > use it with ADS7843e controller using nuttx/drivers/input/ads7843e.c instead > of connecting it direct to ESP32 ADC inputs as you did, however I'm not > experienced enough in lvgl so I don't know how to make the integrating with > lbgl. I appreciate very much your comments. > > I started a topic here in Nuttx Discord channel for this application, maybe > you visit: > https://discordapp.com/channels/716091708336504884/872142546929877042/872142551539409007 > > > Regards, > Murat > > > On 2021/06/25 19:39:49, Barbiani <barbi...@gmail.com> wrote: >> Hi, >> >> I have put together a touch screen driver for this board using a separate >> touch glass placed over the tft display. >> >> It is resistive and the connections are described in the source file. >> >> https://github.com/lvgl/lv_drivers/blob/master/indev/AD_touch.c >> >> >> On Fri, Jun 25, 2021, 16:17 Gustavo Henrique Nihei <ghni...@gmail.com> >> wrote: >> >> > Hi Murat, >> > >> > Just to add to Alan's answer, this is actually the Slideshow mode for >> > the >> > LVGL Widgets example. >> > You may disable it via "CONFIG_EXAMPLES_LVGLDEMO_WIDGETS_SLIDESHOW". >> > Then the example application will just wait for the user input. >> > >> > Best regards, >> > Gustavo. >> > >> > On Fri, Jun 25, 2021 at 4:12 PM Alan Carvalho de Assis >> > <acas...@gmail.com> >> > wrote: >> > >> > > Hi Murat, >> > > >> > > The LVGL moving up and down it not a bug, it is by design. >> > > >> > > LVGL guys did it as as way to show all the screen exactly for board >> > > that doesn't have a touchscreen to interact with it. Otherwise you >> > > should think it was crashed/freeze, don't you? :-) >> > > >> > > Hmm, maybe we can use a BackBerry TouchPad as mouse. >> > > >> > > Matias, do you think it is possible? Probably we will need to >> > > implement a driver to make it behavior like a mouse to be used on >> > > NuttX. >> > > >> > > BR, >> > > >> > > Alan >> > > >> > > On 6/25/21, murat tologlu <mtolo...@hotmail.com> wrote: >> > > > Dear Gustavo, >> > > > >> > > > Thanks you very much for your interested and for the informations >> > you've >> > > > provided. >> > > > >> > > > I wasn't aware that the esp-wrover-kit doesn't have any touch >> > > > keypad, I >> > > am >> > > > very much surprised about that. That's why I talked about an >> > > > improper >> > > lvgl >> > > > operation, I was expecting to interact with the display as I do >> > normally >> > > > with many other boards :) I think this is a weakness of the >> > > esp-wrover-kit, >> > > > do we have to use a separate keypad in case a user entry is >> > > > required? >> > > > >> > > > On the other hand the display is not stable, it moves up and down >> > > > as >> > > seen on >> > > > old-time TVs, it is a synch problem, it can be related to frame >> > > > rate, I >> > > will >> > > > try overclocking the SPI bus as you've suggested. >> > > > >> > > > Best regards, >> > > > Murat >> > > > >> > > > On 2021/06/25 12:13:40, Gustavo Henrique Nihei <ghni...@gmail.com> >> > > wrote: >> > > >> Hi Murat, >> > > >> >> > > >> I've just watched your video after you made it public. >> > > >> It seems to be working as expected for the "esp32-wrover-kit:lvgl" >> > > >> configuration. >> > > >> What exactly do you mean by frequency mismatch? I can see some >> > > >> stripes >> > > in >> > > >> the video, but I believe this is probably due to the video >> > > >> recording. >> > > >> If the issue is regarding the framerate, you may tweak the >> > configuration >> > > >> in >> > > >> order to increase it (e.g. overclocking the SPI bus via >> > > >> CONFIG_ESP32_LCD_OVERCLOCK) >> > > >> Also, the ESP-WROVER-KIT does not provide a touch sensor. >> > > >> >> > > >> Best regards, >> > > >> Gustavo. >> > > >> >> > > >> On Fri, Jun 25, 2021 at 1:05 AM murat tologlu >> > > >> <mtolo...@hotmail.com> >> > > >> wrote: >> > > >> >> > > >> > Hi, >> > > >> > >> > > >> > Brand new ESP-WROVER-KIT V4.1, loaded with latest nuttx and >> > > >> > apps, >> > > >> > without >> > > >> > any jumper modification >> > > >> > >> > > >> > https://youtu.be/17vXIOFpU5c >> > > >> > >> > > >> > Seems like a frequency mismatch, touch input doesn't work as >> > > >> > well.. >> > > >> > what >> > > >> > can be the reason? >> > > >> > >> > > >> >> > > >> >> > > >> -- >> > > >> Gustavo Henrique Nihei >> > > >> >> > > > >> > > >> > >> > >> > -- >> > Gustavo Henrique Nihei >> > >> >
