Method init

resources/waveshare_epd/gc9a01.py:54–67

Initialise SPI, GPIO and the GC9A01 controller. This is called every display loop iteration for e-Paper partial-update compatibility. We only run the full hardware setup + reset sequence once to avoid the blank flash that a reset causes on every frame.

(self, *args)

    # ------------------------------------------------------------------

    def init(self, *args):
        """Initialise SPI, GPIO and the GC9A01 controller.

        This is called every display loop iteration for e-Paper partial-update
        compatibility.  We only run the full hardware setup + reset sequence
        once to avoid the blank flash that a reset causes on every frame.
        """
        if self._initialized:
            return  # Already running — skip reset/reinit entirely
        self._setup_hardware()
        self._reset()
        self._send_init_sequence()
        self._initialized = True
        logger.info("GC9A01 initialised (%dx%d)", self.width, self.height)

    def Clear(self, color=0xFFFF):
        """Fill the entire display with a solid RGB565 colour (default white)."""