display

Display Types

There are three types of display included.

  • a st7789 color display used in the pinetime

  • a monochrome SSD1306 OLED display used in the desay D6

  • a on-screen display SDL simulated on linux

Several methods of using the display

Included in the zephyr distribution are : - the Little Graphics Library (LVGL) - Character frame buffer (cfb)

For the pinetime the LVGL library might be a good option, since it has a big screen, colors and (!) is touch sensitive.

For the DS-D6 which has a monochrome OLED small display, the character frame buffer could be the best option.

The human eye

You can print something to the serial port, use the Segger RTT, but having a sample which displays something on the screen is the equivalent of blinking a LED.

Instead of the blinky blinking the LED, most samples include the screen.