hi guys i multiplied my st7789 1.3" (adafruit gfx) lcd pins and used them on microsd, i cant find a single code on google to do it,does someone have a code to do it???
Just clarifying, did you mean multiplexed?
SPI is a bus, so can accommodate more than 1 device. Your LCD and SD card would share the same MOSI, MISO and SCK signals. You would need two SS (Slave Select or Chip Select) signals, one for the LCD and one for the SD card.
The libraries usually allow you to specify the pin you are using for SS.
Note that some SD card adapters need a modification to allow other SPI devices to work correctly. Post a link (or photo) of your SD card adapter if you are having problems - i.e. the LCD works on its own, and the SD card works on its own, but the two don't work together.
the lcd doesnt have a cs pin, but the sd has
Ok, can you provide a link to the exact LCD you have.
St7789 1.3"
So no link to your LCD device?
Is it this one:
Did you read through the Adafruit guide on this display?
I doesnt have cs pin and microsf
See post #4.
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