GNU Makefile for arduino-cli

Makefile

.PHONY: build upload

PROJECT := blemon
SOURCE := $(PROJECT).ino

SKETCH_ID := $(shell pwd | tr -d '\n' | md5sum | awk '{print toupper($$1)}')
SKETCH_BUILD_PATH := /tmp/arduino-sketch-$(SKETCH_ID)

OUTPUT := $(SKETCH_BUILD_PATH)/$(SOURCE).bin

all: build

build: $(OUTPUT)

$(OUTPUT): $(SOURCE)
	arduino-cli -v compile -b esp32:esp32:featheresp32 $(BUILD_FLAGS) .

upload: $(OUTPUT)
	arduino-cli upload -p /dev/ttyUSB0 -b esp32:esp32:featheresp32