casainho wrote: ↑
Sep 15 2018 12:17pm
I was afraid of that, because I think that type of LCD gives a big freedom but must also need more program memory. What do you think was the strategy of original firmware?? Few features to fit on the 32kbytes??
KT also has some new color LCDs. Also one like LCD3 but with Bluetooth module included.
I think would be great to find a color LCD, that has at least 64kbytes flash, maybe STM32 and easy to source onmany online shops.
Well, I'm not sure if they thought about that beforehand.
I think they designed the final PCB first and than cared about the software.
Look at how the LCD data pins are connected:
They spread the 8 lines across two different ports and even reversed them. So you can't simply and efficient put out a byte on the port.
That's how I have implemented it:
... _XH18LCD.h (function UTFT__set_bits)
It is a nice looking PCB design, but not very practical...
And I also wonder why they haven't chosen the SPI version of the display/controller...
I also thought about using something completely different as LCD.
Maybe a Raspberry Zero with a cheap LCD or just a bluetooth transmitter and a phone.
Or to fit a different LCD in the same case... a transflective LCD would be nice. Together with an ESP32 or so.