new build system, does not use arduino ide

.gitignore

@@ -0,0 +1,2 @@
+/bin
+/protobuf

Makefile

@@ -0,0 +1,82 @@
+ARDUINO_DIR?="external/ArduinoCore-avr"
+NANOPB_DIR?="external/nanopb"
+
+CC=avr-gcc
+CXX=avr-g++
+OBJCOPY=avr-objcopy
+OBJDUMP=avr-objdump
+BINSIZE=avr-size
+OUT=./bin/
+NAME=collar
+
+CFLAGS?=-Datmega328p\
+				-Dmega328p\
+				-mmcu=atmega328p\
+				-Wl,--gc-sections\
+				-DF_CPU=16000000L\
+				-DARDUINO=200\
+				-DARDUINO_AVR_NANO\
+				-DARDUINO_ARCH_AVR\
+				-Os\
+				-ffunction-sections\
+				-fdata-sections\
+				-MMD\
+				-flto\
+				-fno-fat-lto-objects\
+		  	-fuse-linker-plugin
+
+INC_DIRS?=-I./$(ARDUINO_DIR)/libraries/SPI/src\
+					-I./$(ARDUINO_DIR)/cores/arduino\
+					-I./$(ARDUINO_DIR)/variants/eightanaloginputs\
+					-I./libraries/arduino-LoRa/src\
+					-I./libraries/TinyGPSPlus/src\
+					-I./$(NANOPB_DIR)\
+					-I./protobuf\
+					-I./$(ARDUINO_DIR)/libraries/SoftwareSerial/src/
+
+SRC_FILES?=./$(ARDUINO_DIR)/cores/arduino/main.cpp\
+					 ./$(ARDUINO_DIR)/cores/arduino/wiring_digital.c\
+					 ./$(ARDUINO_DIR)/cores/arduino/wiring_analog.c\
+					 ./$(ARDUINO_DIR)/cores/arduino/WInterrupts.c\
+					 ./$(ARDUINO_DIR)/cores/arduino/hooks.c\
+					 ./$(ARDUINO_DIR)/cores/arduino/wiring.c\
+           ./$(ARDUINO_DIR)/cores/arduino/HardwareSerial.cpp\
+           ./$(ARDUINO_DIR)/cores/arduino/HardwareSerial0.cpp\
+           ./$(ARDUINO_DIR)/cores/arduino/HardwareSerial1.cpp\
+           ./$(ARDUINO_DIR)/cores/arduino/HardwareSerial2.cpp\
+           ./$(ARDUINO_DIR)/cores/arduino/HardwareSerial3.cpp\
+					 ./$(ARDUINO_DIR)/libraries/SPI/src/SPI.cpp\
+					 ./$(ARDUINO_DIR)/cores/arduino/WString.cpp\
+					 ./$(ARDUINO_DIR)/cores/arduino/Print.cpp\
+					 ./$(ARDUINO_DIR)/cores/arduino/Stream.cpp\
+					 ./$(ARDUINO_DIR)/cores/arduino/new.cpp\
+					 ./$(ARDUINO_DIR)/cores/arduino/abi.cpp\
+					 ./$(ARDUINO_DIR)/libraries/SoftwareSerial/src/SoftwareSerial.cpp\
+					 ./libraries/arduino-LoRa/src/LoRa.cpp\
+					 ./libraries/TinyGPSPlus/src/TinyGPS++.cpp\
+					 ./$(NANOPB_DIR)/pb_encode.c\
+					 ./$(NANOPB_DIR)/pb_decode.c\
+					 ./$(NANOPB_DIR)/pb_common.c\
+					 ./gateway/message.pb.c
+
+build: $(OUT)$(NAME).hex
+
+$(OUT)$(NAME).hex: $(OUT)$(NAME).elf
+	$(OBJCOPY) -R .eeprom -O ihex $(OUT)$(NAME).elf $(OUT)$(NAME).hex
+$(OUT)eep.hex: $(OUT)$(NAME).elf
+	$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $(OUT)$(NAME).elf $(OUT)eep.hex
+$(OUT)$(NAME).elf: protobuf bin
+	$(CC) $(CFLAGS) -o $(OUT)$(NAME).elf collar.cpp $(INC_DIRS) $(SRC_FILES) 
+
+protobuf:
+	mkdir -p protobuf/gateway
+	python external/nanopb/generator/nanopb_generator.py gateway/message.proto -D protobuf
+
+bin: 
+	mkdir bin
+
+flash:
+	avrdude -v -patmega328p -carduino -P/dev/ttyUSB0 -b115200 -D -Uflash:w:$(OUT)$(NAME).hex:i
+clean:
+	rm -r protobuf
+	rm -r bin

collar.cpp

@@ -7,7 +7,7 @@
 #include "pb.h"
 #include "pb_encode.h"
 
-#include "message.pb.h"
+#include "gateway/message.pb.h"
 
 unsigned long previousMillis = 0;
 const long interval = 5000;

gateway

@@ -1 +1 @@
-Subproject commit 19985b04c221441bfe461d694023d1cb76147c56
+Subproject commit 927f3dc6c614fc20ff2300b1d34139deceaea063