I’ve worked on this « project » for weeks now, and I think that it’s time to share.
In the beginning, I just wanted to play with these cheap TFT screens available on eBay (displaying some pictures & text, nothing more); step by step, I finally designed a PCB and a built a consequent software with many 2D basic functions and even a small GUI.
The board is based on a PIC32 and a 2.8′ TFT with touchscreen (ILI9320 controller, using 16bits PMP). The PCB is 4.9 x 4.9 cm, 2 layers (=> $15 / 10 units at seeedfusion).
About the software: I’ve first tried to use some parts of code provided by Microchip, but their library looks like quite complex from my point of view (some files with more than 5k lines, with too much #ifdef…. ><“). As a result, I rewrote a new software, from scratch; this software is composed of 2 main parts:
P2D: 2D functions (drawing a line, put some texts & sprites, draw filled polygons, memory buffering…)
GUI: small GUI with some basic widgets (buttons, checkbox, graph, …). Each widget has generic attributes (disabled, notified, focused, …), can be grouped and linked to signals (e.g. emit a signal when the widget is pressed)
For more detail: PIC32 controller board for 2.8′ TFT touchscreen
About The Author
Ibrar Ayyub
I am an experienced technical writer holding a Master's degree in computer science from BZU Multan, Pakistan University. With a background spanning various industries, particularly in home automation and engineering, I have honed my skills in crafting clear and concise content. Proficient in leveraging infographics and diagrams, I strive to simplify complex concepts for readers. My strength lies in thorough research and presenting information in a structured and logical format.
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