e">RESX</td><td>GPIO of Reset signal (can be GPIO_UNUSED). </td></tr>
    <tr><td class="paramname">CS</td><td>GPIO of optional select signal (can be GPIO_UNUSED). Without CS signal it is impossible to share SPI channel with other devices.</td></tr>
  </table>
  </dd>
</dl>
<p>Example: </p><pre class="fragment">fabgl::ST7789Controller DisplayController;

// SCK = 18, MOSI = 23, D/C = 22, RESX = 21
SPI.begin(18, -1, 23);
DisplayController.begin(&amp;SPI, 22, 21);
DisplayController.setResolution(TFT_240x240);