# Makefile for PCA9685 LED Controller

CC = gcc
CFLAGS = -Wall -O2 -g
LDFLAGS = -lm

TARGETS = led_dual_color test_pca9685

PCA9685_SRC = pca9685.c
PCA9685_HDR = pca9685.h

.PHONY: all clean install

all: $(TARGETS)

led_dual_color: led_dual_color.c $(PCA9685_SRC) $(PCA9685_HDR)
	$(CC) $(CFLAGS) -o $@ led_dual_color.c $(PCA9685_SRC) $(LDFLAGS)

test_pca9685: test_pca9685.c $(PCA9685_SRC) $(PCA9685_HDR)
	$(CC) $(CFLAGS) -o $@ test_pca9685.c $(PCA9685_SRC) $(LDFLAGS)

clean:
	rm -f $(TARGETS) *.o

install: led_dual_color
	cp led_dual_color /usr/local/bin/
	chmod 755 /usr/local/bin/led_dual_color

test: led_dual_color
	sudo ./led_dual_color /dev/i2c-0 0x40

help:
	@echo "Usage:"
	@echo "  make              - Build all programs"
	@echo "  make led_dual_color - Build dual color LED controller"
	@echo "  make test         - Run with sudo"
	@echo "  make clean        - Remove built files"
	@echo ""
	@echo "Running:"
	@echo "  sudo ./led_dual_color [i2c_device] [address]"
	@echo "  Example: sudo ./led_dual_color /dev/i2c-0 0x40"