arduino-makefile

Simple makefile for building Arduino projects in Linux.

Project structure

The makefile expects the project to be on the form described below.

• /Makefile
• /src/
• /obj/
• /dist/

Targets

• clean
• all
• flash (might require sudo access)

Requirements

• avr-gcc
• avrdude

Configuration

• PROGNAME: Name of project (produced hex file will have this name)
• CONFIG_FILE: header (.h) file containing global configuration (defines)
• TARGET: Name of the target AVR
• CPU_FREQ: Oscillator frequency
• PROG_PORT: Serial port used for programming through AVRDUDE
• PROG_RATE: Seial baud rate
• LIB_DIRS: List of directories in which to search for libraries used in the project
• LIB_NAMES: List of libraries used (for example: m core)
• ARDUINO_DIR: Path to arduino installation root dir
• ARDUINO_LIBS: List of arduino "libs" used in the project (for example: LiquidCrystal)

Optimizations

The makefile uses optimizations when compiling the code to make it as small as possible. Details about the different flags can be read here:

• https://gcc.gnu.org/onlinedocs/gcc/AVR-Options.html
• https://gcc.gnu.org/onlinedocs/gcc/Option-Summary.html