ili9341_OPi5plus

Repo for driving the LCD display at around 30FPS on an orange pi 5 plus

As I scoured the internet to find a way to drive the lcd display on the orangepi 5 plus using SPI. I found some repo's but couldn't get them to work on my system so I made my own code based on spidev and wiringPi. This library can be used in python or in c.

The only repo that worked for me was this one: https://github.com/sonocotta/ili9341-orangepi-python/tree/master

However, I did not get the performance I wanted, I could only get up to around 5FPS, so I decided to rewrite it in c in the hope that it would be better. The final result reaches around 30FPS.

How to use it

In order to use this you need to connect your device as such that:

• A 5V pin of the OPi5+ is connected to VCC on the display
• A GND pin of the OPi5+ is connected to GND on the display
• Pin 24 (WPi-counting) of the OPi5+ is connected to CS on the display
• Pin 3 (WPi-counting) of the OPi5+ is connected to RESET on the display
• Pin 10 (WPi-counting) of the OPi5+ is connected to DC on the display
• Pin 19 (WPi-counting) of the OPi5+ is connected to SDI on the display
• Pin 23 (WPi-counting) of the OPi5+ is connected to SCK on the display
• Pin 4 (WPi-counting) of the OPi5+ is connected to LED on the display
• Pin 21 (WPi-counting) of the OPi5+ is connected to SDO on the display

Make sure you have the requirements installed: WiringPi (usually already installed) as well as enabled spidev0.0 M2 on your system.

For python you will also need to install numpy and pillow.

After that, in C you can compile ili9341.c to a shared dll using the following command

gcc -shared -o ili9341.so ili9341.c -fPIC -lwiringPi

The ili9341.so file can then be called in python using the ctypes library. I will make a class that has these features pre-installed so you can use it in python.

Issues

As of now, there are a few optimisations that can be added. If I do not add them soon, feel free to open an issue to remind me :).

• Clearer and more complete explanation to install and use this library, including images of the steps
• State of the art implementation in python
• Add touchscreen support
• Process images and videos, like the HDMI input of the OPi5+
• Implementation of a simple, easy to use widgets that can be added on the screen: Labels, Buttons and Sliders on a FloatLayout