Can't build lvgl sample with ssd1306 and nrf52832

RE: Can't build lvgl sample with ssd1306 and nrf52832

sh4k3jkeee — Tue, 23 Sep 2025 11:39:42 GMT

As per your provided information, why you are fineoutsolar using 2 separate overlays? and how you are adding them both in the build configuration

RE: Can't build lvgl sample with ssd1306 and nrf52832

Hester Beatty — Fri, 03 Jan 2025 03:44:18 GMT

You should note that although the SSD1306 code works to a certain extent, the display results are not accurate, this may be due to the difference between the two types of screens (SH1106 and SSD1306) in signal processing, image buffer structure, or control commands.

Block Blast

RE: Can't build lvgl sample with ssd1306 and nrf52832

Illia Alexandrov — Fri, 03 Jan 2025 02:07:24 GMT

Hello, thank you for your reply.

It looks like the ssd1306 overlay is added by itself.

I made a project based on this guy's example taking the same settings, but considering the specifics of nrf52, since it's a relatively recent solution, I thought it should work. devzone.nordicsemi.com/.../nrf52840-dk---ssd1306---display. github.com/.../test_zephyr_oled . This project was built but I don't see anything.

So here is my overlay:

/ {
    chosen {
        zephyr,display = &ssd1306;
    };
};

&pinctrl {
    i2c0_default: i2c0_default {
		group1 {
			psels = <NRF_PSEL(TWIM_SDA, 0, 22)>,
				<NRF_PSEL(TWIM_SCL, 0, 23)>;
		};
	};

	i2c0_sleep: i2c0_sleep {
		group1 {
			psels = <NRF_PSEL(TWIM_SDA, 0, 22)>,
				<NRF_PSEL(TWIM_SCL, 0, 23)>;
			low-power-enable;
        };
    };
};

&i2c0 {
    compatible = "nordic,nrf-twi";
    status = "okay";
    pinctrl-0 = <&i2c0_default>;
    pinctrl-1 = <&i2c0_sleep>;
    pinctrl-names = "default", "sleep";
    clock-frequency = <I2C_BITRATE_FAST>;


    ssd1306: ssd1306@3c {
        compatible = "solomon,ssd1306fb";
        reg = <0x3c>;
        height = <64>;
        width = <128>;
        segment-offset = <0>;
        page-offset = <0>;
        display-offset = <0>;
        multiplex-ratio = <63>;
        prechargep = <0x22>;
        com-invdir;
        segment-remap;
    };
};

Also I should say that I actually use sh1106, but I have worked with it on several platforms and the code for ssd1306 always worked (not always correctly, but it showed something). Should I close the failed build thread (because I was able to build), or can you help me further with the screen issue?

RE: Can't build lvgl sample with ssd1306 and nrf52832

Naeem Maroof — Fri, 03 Jan 2025 01:36:31 GMT

I am not sure if the instructions for 2022 blog should work with the latest ncs 2.8.0.

I would suggest either use the same sdk as suggested by the blog and then follow the instructions, or first try the lvgl sample from the ncs 2.8.0 and then modify accordingly.

Where you able to compile the basic lvgl sample (as per sample instructions) in ncs 2.8.0?

As per your provided information, why you are using 2 separate overlays? and how you are adding them both in the build configuration?

It looks like one of the overlays is not included in the build.