https://devzone.nordicsemi.com/f/nordic-q-a/71197/nrf52-and-st7735sHi, I am developing using nrf52832 and st7735s. Successfully displayed the lcd screen using the code in \examples\peripheral\gfx However, when screen clear, text_8print is used, the screen is turned off and outputting to lcd is too explicit. It looksen-USTelligent Community 13Wed, 03 Feb 2021 13:50:47 GMThttps://devzone.nordicsemi.com/thread/292701?ContentTypeID=1Wed, 03 Feb 2021 13:50:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cf518eb3-689e-4675-b336-f0534613c373J&#248;rgen Holmefjord<p><a href="https://devzone.nordicsemi.com/f/nordic-q-a/38711/controlling-st7789-lcd-with-nrf52-dk/150838#150838">This post</a> may help you out.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/292614?ContentTypeID=1Wed, 03 Feb 2021 08:19:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:68a02936-77e7-4170-ab33-392db0c4526dMinseo<p>Thank you for your answer.<br />I&#39;ve checked. Write lcd_pixel_draw, lcd_right_draw in the frame buffer, and then use lcd_display() to display the buffer contents in the lcd?</p> <p>Then do I have to make and use the frame buffer on my own?<br /> lcd_pixel_draw, lcd_right_draw is the way to print out lcd right away, so how do you write into the buffer and use lcd_display to display it on the lcd screen?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/292408?ContentTypeID=1Tue, 02 Feb 2021 09:33:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:380a1808-81e8-438d-a0a6-6791e41bba1aJ&#248;rgen Holmefjord<p>Hi,</p> <p>You may be able to accelerate the updating of the screen by implementing a&nbsp;<a title="LCD frame buffer" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/lib_gfx.html?cp=7_1_3_20_3#gfx_lib_frame_buffer">LCD frame buffer</a>. This is not implemented in the example, you need to handle this yourself.</p> <p>Best regards,<br />Jørgen</p><div style="clear:both;"></div>