Chatter screen pins for TFT_eSPI library

SmartDude · January 13, 2024, 1:54pm

I cannot seem to find any information on the pins for the Chatter (specifically 2.0) screen, or even what the screen driver is.

SmartDude · January 13, 2024, 2:48pm

If it makes it easier, a different library could be used instead of TFT_eSPI.

Monika_Tomljanovic · January 15, 2024, 8:39am

Hi @SmartDude,

you can find the schematics with all the information attached.

Also, the libraries for Chatter 2.0 can be found here:

Best,
Monika

casascius · January 30, 2025, 5:53pm

I looked for the same thing and took me a while to find, but I think I have a spoiler to provide, this is from the Arduino board definitions for the chatter.

chatter:
chatter.build.defines= -DLOVYAN_PANEL=Panel_ST7735S -DLOVYAN_FREQ=27000000 -DLOVYAN_WIDTH=128 -DLOVYAN_HEIGHT=160 -DLOVYAN_MISO=-1 -DLOVYAN_MOSI=26 -DLOVYAN_SCK=27 -DLOVYAN_CS=-1 -DLOVYAN_DC=33 -DLOVYAN_RST=15

I’m taking this to mean it’s ST7735S with 160x128 resolution (128x160 rotated)

chatter2:
chatter2.build.defines=DLOVYAN_PANEL=Panel_ST7735S -DLOVYAN_FREQ=27000000 -DLOVYAN_WIDTH=128 -DLOVYAN_HEIGHT=160 -DLOVYAN_MISO=-1 -DLOVYAN_MOSI=26 -DLOVYAN_SCK=27 -DLOVYAN_CS=-1 -DLOVYAN_DC=33 -DLOVYAN_RST=15

apparently no difference