diff --git a/fw_test/Makefile b/fw_test/Makefile
new file mode 100644
index 0000000..7e7b8f3
--- /dev/null
+++ b/fw_test/Makefile
@@ -0,0 +1,423 @@
+## fuses d7 d8 fc
+# 4c normal lock
+# 40 total lock
+
+#curl http://seb.exse.net/ledtest.hex > ledtest.hex && avrflash.sh  m168 -F -v -v  -U flash:w:ledtest.hex
+
+#MCU = atmega328p
+#MCU = atmega644
+MCU = atmega88p
+
+#F_CPU = 20000000
+F_CPU = 8000000
+
+QUARZ = 8MHZ
+
+#internal RC/8
+#FUSE_SETTINGS = -U lfuse:w:0xe2:m -U hfuse:w:0xdf:m -U efuse:w:0xf9:m 
+
+# default, except internal isn not RC/8 but instead RC = 8MHz
+FUSE_SETTINGS = -U lfuse:w:0xe2:m -U hfuse:w:0xdf:m -U efuse:w:0x01:m 
+
+#FUSE_SETTINGS = -U lfuse:w:0xd6:m -U hfuse:w:0xdf:m
+#-U lfuse:w:0xD6:m -U hfuse:w:0xDF:m -U efuse:w:0x1:m
+#FUSE_SETTINGS = -U lfuse:w:0xF7:m -U hfuse:w:0xDD:m -U efuse:w:0x1:m
+
+
+# Output format. (can be srec, ihex, binary)
+FORMAT = ihex
+
+TARGET = pentabug
+
+
+# Optimization level, can be [0, 1, 2, 3, s]. 0 turns off optimization.
+# (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
+OPT = s
+
+##########################################################################################################
+# List C source files here. (C dependencies are automatically generated.)
+SRC	= main.c 
+##########################################################################################################
+
+
+# List Assembler source files here.
+# Make them always end in a capital .S.  Files ending in a lowercase .s
+# will not be considered source files but generated files (assembler
+# output from the compiler), and will be deleted upon "make clean"!
+# Even though the DOS/Win* filesystem matches both .s and .S the same,
+# it will preserve the spelling of the filenames, and gcc itself does
+# care about how the name is spelled on its command-line.
+ASRC = 
+
+
+
+# List any extra directories to look for include files here.
+#     Each directory must be seperated by a space.
+EXTRAINCDIRS = 
+
+
+# Optional compiler flags.
+#  -g:        generate debugging information (for GDB, or for COFF conversion)
+#  -O*:       optimization level
+#  -f...:     tuning, see gcc manual and avr-libc documentation
+#  -Wall...:  warning level
+#  -Wa,...:   tell GCC to pass this to the assembler.
+#    -ahlms:  create assembler listing
+CFLAGS  = -O$(OPT) -g
+CFLAGS += -funsigned-char
+CFLAGS += -funsigned-bitfields
+CFLAGS += -fpack-struct
+CFLAGS += -fshort-enums
+CFLAGS += -Wall
+CFLAGS += -Wstrict-prototypes
+CFLAGS += -Wa,-adhlns=$(<:.c=.lst)
+CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
+
+
+# Compiler flag to set the C Standard level.
+#   Unremark just one line below to set the language standard to use.
+#     c89   = "ANSI" C
+#     gnu89 = c89 plus GCC extensions
+#     c99   = ISO C99 standard (not yet fully implemented)
+#     gnu99 = c99 plus GCC extensions
+#CFLAGS += -std=c89
+#CFLAGS += -std=gnu89
+#CFLAGS += -std=c99
+CFLAGS += -std=gnu99
+
+CFLAGS += -DADDR=$(ADDR)
+CFLAGS += -DF_CPU=$(F_CPU)
+CFLAGS += -DQUARZ=$(QUARZ)
+CFLAGS += -DADDR=$(ADDR)
+
+
+
+# Optional assembler flags.
+#  -Wa,...:   tell GCC to pass this to the assembler.
+#  -ahlms:    create listing
+#  -gstabs:   have the assembler create line number information; note that
+#             for use in COFF files, additional information about filenames
+#             and function names needs to be present in the assembler source
+#             files -- see avr-libc docs [FIXME: not yet described there]
+ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs 
+
+
+
+# Optional linker flags.
+#  -Wl,...:   tell GCC to pass this to linker.
+#  -Map:      create map file
+#  --cref:    add cross reference to  map file
+LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
+
+# Additional libraries
+
+# Minimalistic printf version
+#LDFLAGS += -Wl,-u,vfprintf -lprintf_min
+
+# Floating point printf version (requires -lm below)
+#LDFLAGS += -Wl,-u,vfprintf -lprintf_flt
+
+# -lm = math library
+LDFLAGS += -lm 
+#-Wl,--section-start=.text=0x1800
+
+
+##LDFLAGS += -T./linkerfile/avr5.x
+
+
+
+# Programming support using avrdude. Settings and variables.
+
+# Programming hardware:
+#
+# Type: avrdude -c ?
+# to get a full listing.
+#
+
+ # serial bootloader via USART
+AVRDUDE_SER_PROGRAMMER = avr109 -b 38400
+
+
+#johns programmer:
+AVRDUDE_JS_PROGRAMMER = stk500v2
+# USBTINY via ISP
+AVRDUDE_PROGRAMMER = usbtiny 
+#falls Ponyser ausgewählt wird, muss sich unsere avrdude-Configdatei im Bin-Verzeichnis des Compilers befinden
+
+#AVRDUDE_PORT = com1    # programmer connected to serial device
+#AVRDUDE_PORT = lpt1    # programmer connected to parallel port
+AVRDUDE_PORT =      # programmer connected to USB
+
+AVRDUDE_PORT_SER = /dev/ttyUSB0     # programmer connected to USB
+
+AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex 
+AVRDUDE_WRITE_FUSE = $(FUSE_SETTINGS)
+AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
+
+#avrdude -c avrispv2 -P usb -p m32 -U flash:w:blink.hex
+#AVRDUDE_FLAGS = -p m168 -F -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
+AVRDUDE_FLAGS = -p $(MCU) -F -c $(AVRDUDE_PROGRAMMER) -v -v 
+AVRDUDE_JOFLAGS = -p $(MCU) -F  -P /dev/serial/by-id/usb-FTDI_USB__-__Serial-if00-port0   -c $(AVRDUDE_JS_PROGRAMMER) -v -v 
+AVRDUDE_FLAGS_SER = -p $(MCU) -F -P $(AVRDUDE_PORT_SER) $(AVRDUDE_PROGRAMMER_SER) -v -v 
+#AVRDUDE_UFLAGS = -p atmega88 -F -P /dev/ttyUSB0 -c avr109 -b 38400  -v -v 
+#AVRDUDE_UFLAGS = -p $(MCU) -P /dev/cu.usbserial-A2002QDi -c avr109 -b 230400  -v -v 
+AVRDUDE_UFLAGS = -p $(MCU) -F -P /dev/cu.usbserial-A4016EMT -c avr109 -b 38400  -v -v 
+#AVRDUDE_UFLAGS = -p $(MCU) -F -P /dev/ttyUSB0 -c avr109 -b 38400  -v -v 
+#AVRDUDE_FLAGS = -p $(MCU) -c $(AVRDUDE_PROGRAMMER)
+
+# Uncomment the following if you want avrdude's erase cycle counter.
+# Note that this counter needs to be initialized first using -Yn,
+# see avrdude manual.
+#AVRDUDE_ERASE += -y
+
+# Uncomment the following if you do /not/ wish a verification to be
+# performed after programming the device.
+#AVRDUDE_FLAGS += -V
+
+# Increase verbosity level.  Please use this when submitting bug
+# reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude> 
+# to submit bug reports.
+#AVRDUDE_FLAGS += -v -v
+
+# ---------------------------------------------------------------------------
+# Define directories, if needed.
+#DIRAVR = c:/winavr
+#DIRAVRBIN = $(DIRAVR)/bin
+#DIRAVRUTILS = $(DIRAVR)/utils/bin
+#DIRINC = .
+#DIRLIB = $(DIRAVR)/avr/lib
+
+
+# Define programs and commands.
+SHELL = sh
+
+CC = avr-gcc
+
+OBJCOPY = avr-objcopy
+OBJDUMP = avr-objdump
+SIZE = avr-size
+
+# Programming support using avrdude.
+AVRDUDE = avrdude
+
+REMOVE = rm -f
+COPY = cp
+
+HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
+##ELFSIZE = $(SIZE) -A $(TARGET).elf
+ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+
+# Define Messages
+# English
+MSG_ERRORS_NONE = Errors: none
+MSG_BEGIN = -------- begin --------
+MSG_END = --------  end  --------
+MSG_SIZE_BEFORE = Size before: 
+MSG_SIZE_AFTER = Size after:
+MSG_COFF = Converting to AVR COFF:
+MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
+MSG_FLASH = Creating load file for Flash:
+MSG_EEPROM = Creating load file for EEPROM:
+MSG_EXTENDED_LISTING = Creating Extended Listing:
+MSG_SYMBOL_TABLE = Creating Symbol Table:
+MSG_LINKING = Linking:
+MSG_COMPILING = Compiling:
+MSG_ASSEMBLING = Assembling:
+MSG_CLEANING = Cleaning project:
+
+
+# Define all object files.
+OBJ = $(SRC:.c=.o) $(ASRC:.S=.o) 
+
+# Define all listing files.
+LST = $(SRC:.c=.lst) $(ASRC:.S=.lst)
+
+# Combine all necessary flags and optional flags.
+# Add target processor to flags.
+#ALL_CFLAGS = -mmcu=$(MCU) -DF_CPU=$(F_CPU) -I. $(CFLAGS)
+ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) 
+ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
+
+
+# Default target.
+all: begin gccversion sizebefore $(TARGET).elf $(TARGET).hex $(TARGET).eep \
+	$(TARGET).lss $(TARGET).sym sizeafter finished end
+
+
+# Eye candy.
+# AVR Studio 3.x does not check make's exit code but relies on
+# the following magic strings to be generated by the compile job.
+begin:
+	@echo
+	@echo $(MSG_BEGIN)
+
+finished:
+	@echo $(MSG_ERRORS_NONE)
+
+end:
+	@echo $(MSG_END)
+	@echo
+
+
+# Display size of file.
+sizebefore:
+	@if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); echo; fi
+
+sizeafter:
+	@if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); echo; fi
+
+
+
+# Display compiler version information.
+gccversion : 
+	@$(CC) --version
+
+
+# Convert ELF to COFF for use in debugging / simulating in
+# AVR Studio or VMLAB.
+COFFCONVERT=$(OBJCOPY) --debugging \
+	--change-section-address .data-0x800000 \
+	--change-section-address .bss-0x800000 \
+	--change-section-address .noinit-0x800000 \
+	--change-section-address .eeprom-0x810000 
+
+
+coff: $(TARGET).elf
+	@echo
+	@echo $(MSG_COFF) $(TARGET).cof
+	$(COFFCONVERT) -O coff-avr $< $(TARGET).cof
+
+
+extcoff: $(TARGET).elf
+	@echo
+	@echo $(MSG_EXTENDED_COFF) $(TARGET).cof
+	$(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof
+
+
+
+
+# Program the device.
+
+serflash: $(TARGET).hex
+	$(AVRDUDE) $(AVRDUDE_FLAGS_SER) $(AVRDUDE_WRITE_FLASH)
+
+
+flash: $(TARGET).hex
+	$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH)
+
+uflash: $(TARGET).hex
+	$(AVRDUDE) $(AVRDUDE_UFLAGS) $(AVRDUDE_WRITE_FLASH)
+
+fljohn: $(TARGET).hex
+	$(AVRDUDE) $(AVRDUDE_JOFLAGS) $(AVRDUDE_WRITE_FLASH)
+
+eeprom: $(TARGET).eep
+	$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_EEPROM)
+
+fuse:
+	$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FUSE)
+
+reset:
+	$(AVRDUDE) $(AVRDUDE_FLAGS)
+
+test:
+	$(AVRDUDE) $(AVRDUDE_FLAGS)
+
+
+# Create final output files (.hex, .eep) from ELF output file.
+%.hex: %.elf
+	@echo
+	@echo $(MSG_FLASH) $@
+	$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
+
+%.eep: %.elf
+	@echo
+	@echo $(MSG_EEPROM) $@
+	-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
+	--change-section-lma .eeprom=0 -O $(FORMAT) $< $@
+
+# Create extended listing file from ELF output file.
+%.lss: %.elf
+	@echo
+	@echo $(MSG_EXTENDED_LISTING) $@
+	$(OBJDUMP) -h -S $< > $@
+
+# Create a symbol table from ELF output file.
+%.sym: %.elf
+	@echo
+	@echo $(MSG_SYMBOL_TABLE) $@
+	avr-nm -n $< > $@
+
+
+# Link: create ELF output file from object files.
+.SECONDARY : $(TARGET).elf
+.PRECIOUS : $(OBJ)
+%.elf: $(OBJ)
+	@echo
+	@echo $(MSG_LINKING) $@
+	$(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)
+
+
+# Compile: create object files from C source files.
+%.o : %.c
+	@echo
+	@echo $(MSG_COMPILING) $<
+	$(CC) -c $(ALL_CFLAGS) $< -o $@
+
+
+# Compile: create assembler files from C source files.
+%.s : %.c
+	$(CC) -S $(ALL_CFLAGS) $< -o $@
+
+
+# Assemble: create object files from assembler source files.
+%.o : %.S
+	@echo
+	@echo $(MSG_ASSEMBLING) $<
+	$(CC) -c $(ALL_ASFLAGS) $< -o $@
+
+
+# Target: clean project.
+clean: begin clean_list finished end
+
+clean_list :
+	@echo
+	@echo $(MSG_CLEANING)
+	$(REMOVE) $(TARGET).hex
+	$(REMOVE) $(TARGET).eep
+	$(REMOVE) $(TARGET).obj
+	$(REMOVE) $(TARGET).cof
+	$(REMOVE) $(TARGET).elf
+	$(REMOVE) $(TARGET).map
+	$(REMOVE) $(TARGET).obj
+	$(REMOVE) $(TARGET).a90
+	$(REMOVE) $(TARGET).sym
+	$(REMOVE) $(TARGET).lnk
+	$(REMOVE) $(TARGET).lss
+	$(REMOVE) $(OBJ)
+	$(REMOVE) $(LST)
+	$(REMOVE) $(SRC:.c=.s)
+	$(REMOVE) $(SRC:.c=.d)
+	@echo
+
+
+# Automatically generate C source code dependencies. 
+# (Code originally taken from the GNU make user manual and modified 
+# (See README.txt Credits).)
+#
+# Note that this will work with sh (bash) and sed that is shipped with WinAVR
+# (see the SHELL variable defined above).
+# This may not work with other shells or other seds.
+#
+%.d: %.c
+	@set -e; $(CC) -MM $(ALL_CFLAGS) $< \
+	| sed 's,\(.*\)\.o[ :]*,\1.o \1.d : ,g' > $@; \
+	[ -s $@ ] || rm -f $@
+
+
+# Remove the '-' if you want to see the dependency files generated.
+-include $(SRC:.c=.d)
+
+
+# Listing of phony targets.
+.PHONY : all begin finish end sizebefore sizeafter gccversion coff extcoff clean clean_list flash eeprom fuse reset
diff --git a/fw_test/main.c b/fw_test/main.c
new file mode 100644
index 0000000..4bbcd71
--- /dev/null
+++ b/fw_test/main.c
@@ -0,0 +1,128 @@
+#include <inttypes.h>
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <stdlib.h>
+
+
+#define LED_L (1 << PORTC0)
+#define LED_R (1 << PORTC2)
+#define MOTOR_ON (0<<PORTB1)
+#define MOTOR_OFF (1<<PORTB1)
+
+
+
+void init_leds(void){
+	//enable LED channels as output
+	DDRC |= (1 << PORTC0) | (1 << PORTC1) | (1 << PORTC2) | (1 << PORTC3);
+	// both LEDs off
+	PORTC &= ~((1 << PORTC0) | (1 << PORTC1) | (1 << PORTC2) | (1 << PORTC3));
+
+
+	 //TCCR2A = (1 << WGM21);
+	  //TCCR2B = (1 << CS20)|(1 << CS21);
+	  //OCR2A = 255; /* TOP */
+	  //	TCNT2 = 0;
+	  //	/*enable interrupt*/
+	  //	TIMSK2 |=  (1<<OCIE2A);
+
+
+  	return;
+};
+
+void inline led_on(int leds){
+ 	PORTC |= leds;
+};
+
+void inline led_off(int leds){
+	PORTC &= ~leds;
+};
+
+
+
+void init_buzzr(){
+	//its on B2 and C5, for reasons
+	DDRC |= (1 << PORTC5);
+	DDRB |= (1 << PORTB2);
+	//switch it off
+	buzzr_off();
+	return;
+};
+
+void buzzr_up(){
+	PORTC &= ~(1 << PORTC5);
+	PORTB |= (1 << PORTB2);
+	return;
+};
+
+void buzzr_down(){
+	PORTC |= (1 << PORTC5);
+	PORTB &= ~(1 << PORTB2);
+};
+
+void inline buzzr_off(){
+	PORTC &= ~(1 << PORTC5);
+	PORTB &= ~(1 << PORTB2);
+};
+void buzzr_inv(){
+	PORTC ^= (1 << PORTC5);
+	PORTB ^= (1 << PORTB2);
+};
+
+void init_switch(){
+	return;
+};
+
+void init_motor(void)
+{
+	/* vibration motor on B1, initially off: */
+	DDRB  |= (1 << PORTB1);
+	PORTB &= ~( 1<<PORTB1);
+	return;
+}
+
+void set_motor(int val){
+	PORTB = ~(val);
+	PORTB = PORTB;
+	return;
+};
+
+
+
+void __attribute__((noreturn)) 
+main(void)
+{
+	init_motor();
+	init_buzzr();
+	init_leds();
+
+
+	/* hardware initialisation: */
+
+
+	for(;;) /* ever */  {
+		//do something
+	//	led_off(LED_L|LED_R);
+		_delay_ms(100);	
+		led_on(LED_L);
+		_delay_ms(100);	
+		led_off(LED_L);
+		led_on(LED_R);
+		_delay_ms(100);
+		led_off(LED_R);	
+		set_motor(MOTOR_ON);
+		_delay_ms(200);
+		set_motor(MOTOR_OFF);
+	
+		buzzr_up();
+		for (int i=0; i<100; i++){
+			_delay_ms(2);
+			buzzr_inv();
+	
+		};
+		buzzr_off();
+	}
+	/* never  return 0; */
+}
+
+