https://nalar.dev/tags/i80/ Recent content in I80 on Nalar Hugo en-us Sat, 19 Sep 2026 00:00:00 +0000 https://nalar.dev/esp-idf-lcd-apis-depend-on-the-selected-soc-target/ Sat, 19 Sep 2026 00:00:00 +0000 https://nalar.dev/esp-idf-lcd-apis-depend-on-the-selected-soc-target/ <p>An ESP-IDF project can include <code>esp_lcd_panel_io.h</code> successfully and still fail on <code>esp_lcd_i80_bus_config_t</code> or <code>esp_lcd_new_i80_bus()</code>. That combination looks contradictory until the build target is taken into account.</p> <p><code>esp_lcd</code> is a framework, not a promise that every ESP chip exposes every LCD transport. The selected SoC determines which low-level interfaces are compiled into the project. Panel-controller support, such as ILI9341, is another layer again.</p> <p>That distinction matters when moving code between ESP32 variants.</p>