.. _st7735r_generic: Generic ST7735R Display Shield ############################## Overview ******** This is a generic shield for display shields based on ST7735R display controller. More information about the controller can be found in `ST7735R Datasheet`_. Pins Assignment of the Generic ST7735R Display Shield ===================================================== +-----------------------+--------------------------------------------+ | Arduino Connector Pin | Function | +=======================+===============+============================+ | D8 | ST7735R Reset | | +-----------------------+---------------+----------------------------+ | D9 | ST7735R DC | (Data/Command) | +-----------------------+---------------+----------------------------+ | D10 | SPI SS | (Serial Slave Select) | +-----------------------+---------------+----------------------------+ | D11 | SPI MOSI | (Serial Data Input) | +-----------------------+---------------+----------------------------+ | D12 | SPI MISO | (Serial Data Out) | +-----------------------+---------------+----------------------------+ | D13 | SPI SCK | (Serial Clock Input) | +-----------------------+---------------+----------------------------+ Current supported displays ========================== +----------------------+------------------------------+ | Display | Shield Designation | | | | +======================+==============================+ | adafruit | st7735r_ada_160x128 | | 160x128 18bit TFT | | +----------------------+------------------------------+ Requirements ************ This shield can only be used with a board that provides a configuration for Arduino connectors and defines node aliases for SPI and GPIO interfaces (see :ref:`shields` for more details). Programming *********** Set ``-DSHIELD=st7735r_ada_160x128`` when you invoke ``west build``. For example: .. zephyr-app-commands:: :zephyr-app: samples/subsys/display/lvgl :board: nrf52840dk_nrf52840 :shield: st7735r_ada_160x128 :goals: build References ********** .. target-notes:: .. _ST7735R Datasheet: https://www.crystalfontz.com/controllers/Sitronix/ST7735R/319/