Orange PI Zero 2w TFT capacitive touch screen ST7796

[Miguel González]

I need some help with this LCD https://www.amazon.com/dp/B0CMD7Y55M?ref=ppx_pop_mob_ap_share, i bought it since i verified whith the always unreliable AI GPT if it would work with my Orange Pi since i want to use the screen in my klipper 3d printer. Now im stuck since the available driver from the manufacturer are only for the Arduino and RP2040. I verified evrywhere and could only find one github but that one did not work for me and there are no tutorials of how to work with this. Does some one have any idea of how to make this run or work?. Just in case my wiring is as follows:

[Miguel González]

The drivers are actually not even theirs; it is from the tft_eSPi library. i followed the instructions they gave to where the wiring should go based on the esp32.

[robertoj]

Try it with the ili9486 and ili9488 DTS we have made here:

 

https://forum.armbian.com/topic/46824-orange-pi-zero-3-ili9486-tft-lcd/

 

https://forum.armbian.com/topic/47971-driving-the-ili9488-lcd-40-inch-cheap-chinese-clone/

 

For the gpio inside the DTS, it is only enough to know the port letter and pin number (you don't need the GPIO number and WPI)

[Miguel González]

I will attempt this. I haven't had the time due to college. Sorry for the late response, but, when I get the chance to try it and observe if it works or not, I will let you know.

[robertoj]

The touch part is actually I2C, so the many DTS examples here will get you close to displaying stuff on the LCD, but not touch.

 

Pay attention to this thread in the raspberry forum... they have a LCD similar to yours 50% working (you will have to modify pin numbers to make it work with opiz2w)

 

https://forums.raspberrypi.com/viewtopic.php?p=2310966#p2310966

[Offeacy61]

09.03.2025 в 23:50, Miguel González сказал:

I need some help with this LCD https://www.amazon.com/dp/B0CMD7Y55M?ref=ppx_pop_mob_ap_share, i bought it since i verified whith the always unreliable AI GPT if it would work with my Orange Pi since i want to use the screen in my klipper 3d printer. Now im stuck since the available driver from the manufacturer are only for the Arduino and RP2040. I verified evrywhere and could only find one github but that one did not work for me and there are no tutorials of how to work with this. Does some one have any idea of how to make this run or work?. Just in case my wiring is as follows:




If the GitHub repository you found didn’t work, you could try reaching out for help in specialized forums. By the way, platforms like Overchat AI offer a great way to get AI-assisted troubleshooting, especially when you're dealing with technical issues. AI can’t replace human expertise, but it can definitely help point you in the right direction when you’re stuck, offering insights or helping you brainstorm potential solutions.

It sounds like you're having a bit of a tough time getting that LCD screen to work with your Orange Pi. The fact that the manufacturer only provides drivers for Arduino and RP2040 is definitely limiting, but there are a few things you can try to get it up and running.
 

Check the display's controller chip: The key to getting an LCD screen to work with any board is knowing what controller chip the screen uses. Often, drivers are not provided for specific boards, but if you can identify the chip (it could be something like an ILI9341, ST7789, etc.), you can search for libraries or drivers that support it on Linux-based systems like your Orange Pi.

Linux Framebuffer or SPI Libraries: If it’s an SPI-based LCD, you might be able to use Linux framebuffer support or libraries like fbcp (framebuffer copy) or fbtft (framebuffer to TFT) which are often used for connecting LCDs to Raspberry Pi-like devices. These libraries could potentially work with your Orange Pi if the wiring is correct.

Using Klipper with an LCD: Since you're trying to use this for a Klipper setup, check if there are any custom firmware or configurations in the Klipper community for connecting LCD screens to Orange Pi devices. Sometimes, other users will have created patches or drivers specifically for non-standard setups.

Try finding alternative drivers: Even if the GitHub repository you found didn’t work, check if there are forks or alternative branches of that repository. It’s also worth checking out other forums or user groups that focus on 3D printing or Orange Pi setups. You might find someone who has already solved this issue.

Wiring Check: Make sure that your wiring matches the expected configuration for your board. Sometimes, the issue can be as simple as a misconnected pin.
 

Hope this helps! Let me know what controller the screen uses or if you need help with any specific steps.