speedometer

Small LVGL-on-Linux display test app for a Raspberry Pi style setup using:

• LVGL
• DRM/KMS page flipping
• raw evdev touch input

Requirements

• a local LVGL checkout
• libdrm
• a C/C++ toolchain

This repo does not vendor LVGL. The build compiles LVGL directly from a local checkout.

LVGL checkout

By default, the Makefile expects LVGL at:

../src/lvgl

So if this repo is checked out at:

/home/user/speedometer

the default LVGL path would be:

/home/user/src/lvgl

Build

If your LVGL checkout matches the default layout:

make

If LVGL is somewhere else, point the build at it explicitly:

make LVGL_DIR=/path/to/lvgl

You can also generate a compile database for editor tooling:

make compdb LVGL_DIR=/path/to/lvgl

Notes

• The build checks that $(LVGL_DIR)/lvgl.h and $(LVGL_DIR)/src exist before compiling.