| .. _adafruit_2_8_tft_touch_v2: |
| |
| Adafruit 2.8" TFT Touch Shield v2 |
| ################################# |
| |
| Overview |
| ******** |
| |
| The Adafruit 2.8" TFT Touch Shield v2 with a |
| resolution of 320x240 pixels, is based on the ILI9341 controller. |
| This shield comes with a resistive (STMPE610 controller) |
| or capacitive (FT6206 controller) touchscreen. While the |
| Zephyr RTOS supports display output to these screens, |
| touchscreen input is supported only on Capacitive Touch version. |
| More information about the shield can be found |
| at the `Adafruit 2.8" TFT Touch Shield v2 website`_. |
| |
| Pins Assignment of the Adafruit 2.8" TFT Touch Shield v2 |
| ======================================================== |
| |
| +-----------------------+---------------------------------------------+ |
| | Shield Connector Pin | Function | |
| +=======================+=============================================+ |
| | D4 | MicroSD SPI CSn | |
| +-----------------------+---------------------------------------------+ |
| | D7 | Touch Controller IRQ (see note below) | |
| +-----------------------+---------------------------------------------+ |
| | D8 | STMPE610 SPI CSn (Resistive Touch Version) | |
| +-----------------------+---------------------------------------------+ |
| | D9 | ILI9341 DC (Data/Command) | |
| +-----------------------+---------------------------------------------+ |
| | D10 | ILI9341 SPI CSn | |
| +-----------------------+---------------------------------------------+ |
| | D11 | SPI MOSI (Serial Data Input) | |
| +-----------------------+---------------------------------------------+ |
| | D12 | SPI MISO (Serial Data Out) | |
| +-----------------------+---------------------------------------------+ |
| | D13 | SPI SCK (Serial Clock Input) | |
| +-----------------------+---------------------------------------------+ |
| | SDA | FT6206 SDA (Capacitive Touch Version) | |
| +-----------------------+---------------------------------------------+ |
| | SCL | FT6206 SCL (Capacitive Touch Version) | |
| +-----------------------+---------------------------------------------+ |
| |
| .. note:: |
| Touch controller IRQ line is not connected by default. You will need to |
| solder the ``ICSP_SI1`` jumper to use it. You will also need to adjust |
| driver configuration and its Device Tree entry to make use of it. |
| |
| Requirements |
| ************ |
| |
| This shield can only be used with a board which provides a configuration |
| for Arduino or Arduino Nano connectors and defines node aliases for SPI and |
| GPIO interfaces (see :ref:`shields` for more details). |
| |
| Programming |
| *********** |
| |
| Set ``-DSHIELD=adafruit_2_8_tft_touch_v2`` when you invoke ``west build``. For example: |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/subsys/display/lvgl |
| :board: nrf52840dk_nrf52840 |
| :shield: adafruit_2_8_tft_touch_v2 |
| :goals: build |
| |
| If the shield is connected to a board which has Arduino Nano connector, |
| set ``-DSHIELD=adafruit_2_8_tft_touch_v2_nano`` when you invoke ``west build``. |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/subsys/display/lvgl |
| :board: arduino_nano_33_ble |
| :shield: adafruit_2_8_tft_touch_v2_nano |
| :goals: build |
| |
| References |
| ********** |
| |
| .. target-notes:: |
| |
| .. _Adafruit 2.8" TFT Touch Shield v2 website: |
| https://learn.adafruit.com/adafruit-2-8-tft-touch-shield-v2 |