In my other thread “Using an I2C / SPI LCD on the Spark Core” a lot of good info changes hands about displays. I thought it might be nice to look at what ones we have working and keep a master list of hints / tips.
So far, I have the three listed below on my short list. You are all welcome to add / correct.
Digole: All UART/I2C/SPI? - WORKING, LIBRARY POSTING SOON
This thread mentions a working Digole library port. As almost all Digole displays within a family are compatible - this should signal a significant number of options. The specific screen mentioned is the 1.3" OLED White. There is hope that the Color OLED will also work.
Adafruit: Monochrome 128x32 I2C OLED graphic display #931 - NEEDS PORT
I2C compatible, library needs to be ported. https://github.com/adafruit/Adafruit_SSD1306
Adafruit: I2C / SPI character LCD backpack #292 - UNSTABLE
I2C / SPI compatible. I am using it paired with the RGB backlight negative LCD 16x2 + extras - RGB on black and it is unfortunately unstable. My test code (thanks @BDub) is here. https://gist.github.com/soulhuntre/8674179.
It is unclear if the issue is the LCD or the backpack, but both test units work finr on an Arduino Uno.