Hey there I am working on a project that uses this screen at the moment...
MY LCD
And I have run out of I/O ports to use. I have previously used 16x2 and 20x4 LCDs with this
library and saved a bunch of pinouts using an i2c module.
My question is can this library be used with my current screen or am I wishing on a shooting star?
Thank you for any and all help!.
Just think about it. That TFT uses all of the IO pins on a Uno. e.g. 8-bit data bus + 5 control lines for the TFT. SPI bus for SD card and Touch Controller.
If you go to a Mega2560, you will get some spare pins.
Yes, you could use a separate MCU to control TFT, SD, Touch. Then talk to this MCU via SPI (or I2C).
An Xmega or a fast ARM can do the graphics processing. So your SPI (or I2C) high-level commands are not so critical.
There are several "intelligent" graphics displays that do exactly this.
It would be quite a lot of work for you to implement all of this by yourself. And you probably would not have chosen that ILI9325 display in the first place.
David.