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Topic: Has anyone got these cheap LCD's to work with arduino? (ST7735R) (Read 8 times) previous topic - next topic

dtokez


MarkT

No but I wonder if the interface chip it uses ST7735R is compatible with the ST7735 (nothing immediately
springs out when comparing the datasheets).  The UTFT library supports ST7735 serial from what I can
glean.   Spend some time comparing the two datasheets perhaps?
[ I won't respond to messages, use the forum please ]

dtokez

#2
Dec 24, 2012, 02:50 am Last Edit: Dec 24, 2012, 03:49 am by dtokez Reason: 1
Good idea I will take a look when I find some spare time

Riva

The ebay URL you supplied contains a download link to a file that appears to contain an Arduino library and example sketches for the device. The example sketches are .pde extension instead of .ino so the libraries may need modifying to work with Arduino IDE v1.0+

dtokez

Ah right, I just found the link you mentioned. Is it easy to update the libs?

Riva


Ah right, I just found the link you mentioned. Is it easy to update the libs?

After downloading them to check what may need changing and I read they are Adafruit libraries so I suggest getting them direct from them to ensure latest versions. You need two libraries, this https://github.com/adafruit/Adafruit-GFX-Library and this https://github.com/adafruit/Adafruit-ST7735-Library I downloaded and compild them without problem but don't have a display to test them.

dtokez

Hi Riva, that's good news! I think I will order a display then as it seems there should be a way to get them working :)

Can't go wrong for that price really!

zachwiej


dtokez

Thats great stuff! So basically the cheaper one has no PCB but the slightly more expensive one is ready to be run from an arduino?

zachwiej

Yes :) I tested already one without pcb (I made my own) and its doing fine :)

dtokez



zachwiej

I think that SPI can be for touch controler not the LCD

MarkT


I think that SPI can be for touch controler not the LCD


The pinout suggest that there is another variant of the board supporting SPI (LCDB rather than LCDA) - perhaps
same vendor has this one too?
[ I won't respond to messages, use the forum please ]

pito


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