diff --git a/avr/devices/0BUILD b/avr/devices/0BUILD
index 6350105..8e3d7f9 100644
--- a/avr/devices/0BUILD
+++ b/avr/devices/0BUILD
@@ -26,6 +26,7 @@
     all
     c01
     c02
+    c03
     n14
     n16
     n21
diff --git a/avr/devices/c03/.gitignore b/avr/devices/c03/.gitignore
new file mode 100644
index 0000000..8e0618c
--- /dev/null
+++ b/avr/devices/c03/.gitignore
@@ -0,0 +1,2 @@
+*.eep.hex
+*.obj
diff --git a/avr/devices/c03/0BUILD b/avr/devices/c03/0BUILD
new file mode 100644
index 0000000..dc4c439
--- /dev/null
+++ b/avr/devices/c03/0BUILD
@@ -0,0 +1,18 @@
+<?xml?>
+
+<gwbuild>
+
+  <subdirs>
+    boot
+    main
+  </subdirs>
+
+  <extradist>
+    defs.asm
+    README
+  </extradist>
+  
+
+</gwbuild>
+
+
diff --git a/avr/devices/c03/README b/avr/devices/c03/README
new file mode 100644
index 0000000..53dfeb9
--- /dev/null
+++ b/avr/devices/c03/README
@@ -0,0 +1,10 @@
+
+C01
+===
+
+- Role: Controller with Display
+- MCU: AtMega 644P
+- Connection: RJ45
+- Periphery:
+  - Display with SPI
+
diff --git a/avr/devices/c03/boot/0BUILD b/avr/devices/c03/boot/0BUILD
new file mode 100644
index 0000000..ce518c7
--- /dev/null
+++ b/avr/devices/c03/boot/0BUILD
@@ -0,0 +1,32 @@
+<?xml?>
+
+<gwbuild>
+
+  <target type="AvrHexFile" name="c03_boot" >
+
+    <includes type="avrasm" >
+      -I $(builddir)
+      -I $(srcdir)
+      -I $(topsrcdir)/avr
+      -I $(topbuilddir)/avr
+    </includes>
+
+
+    <sources type="avrasm" >
+      boot.asm
+    </sources>
+
+
+  </target>
+
+
+  <subdirs>
+  </subdirs>
+
+  <extradist>
+  </extradist>
+  
+
+</gwbuild>
+
+
diff --git a/avr/devices/c03/boot/boot.asm b/avr/devices/c03/boot/boot.asm
new file mode 100644
index 0000000..9b5bfb4
--- /dev/null
+++ b/avr/devices/c03/boot/boot.asm
@@ -0,0 +1,159 @@
+; ***************************************************************************
+; Source file for base system node on AtMega 644P
+;
+; This is for the maintenance system (i.e. the flash loader).
+;
+; All definitions and changes should go into this file.
+; ***************************************************************************
+
+.equ clock=8000000 ; Define the clock frequency
+
+.nolist
+.include "include/m644Pdef.inc" ; Define device ATmega8515
+.list
+
+.include "../defs.asm"
+.include "devices/all/defs.asm"
+
+.include "common/calls.asm"
+.include "common/utils_wait.asm"
+.include "common/utils_io.asm"
+
+
+
+; ***************************************************************************
+; defines
+
+; ---------------------------------------------------------------------------
+; generic
+
+
+.equ NET_BUFFERS_NUM            = 6
+.equ NET_BUFFERS_SIZE           = 32
+
+
+
+; ---------------------------------------------------------------------------
+; firmware settings
+
+.equ FIRMWARE_VERSION_MAJOR       = 0
+.equ FIRMWARE_VERSION_MINOR       = 0
+.equ FIRMWARE_VERSION_PATCHLEVEL  = 1
+
+
+
+; ---------------------------------------------------------------------------
+; LED
+
+.equ LED_DDR             = DDRB
+.equ LED_PORT            = PORTB
+.equ LED_PIN             = PINB
+.equ LED_PINNUM          = PORTB0
+
+
+
+
+
+; ***************************************************************************
+; code segment
+
+.cseg
+.org 0x0000
+
+
+
+; ---------------------------------------------------------------------------
+; Reset and interrupt vectors
+  jmp main                      ;  1: Reset vector   RESET
+  jmp irqNotSet                 ;  2: INT0           External Interrupt Request 0
+  jmp irqNotSet                 ;  3: INT1           External Interrupt Request 1
+  jmp irqNotSet                 ;  4: INT2           External Interrupt Request 2
+  jmp irqNotSet                 ;  5: PCINT0         Pin Change Interrupt Request 0
+  jmp irqNotSet                 ;  6: PCINT1         Pin Change Interrupt Request 1
+  jmp irqNotSet                 ;  7: PCINT2         Pin Change Interrupt Request 2
+  jmp irqNotSet                 ;  8: PCINT3         Pin Change Interrupt Request 3
+  jmp irqNotSet                 ;  9: WDT            Watchdog Time-out Interrupt
+  jmp irqNotSet                 ; 10: TIMER2_COMPA   Timer/Counter2 Compare Match A
+  jmp irqNotSet                 ; 11: TIMER2_COMPB   Timer/Counter2 Compare Match B
+  jmp irqNotSet                 ; 12: TIMER2_OVF     Timer/Counter2 Overflow
+  jmp irqNotSet                 ; 13: TIMER1_CAPT    Timer/Counter1 Capture Event
+  jmp irqNotSet                 ; 14: TIMER1_COMPA   Timer/Counter1 Compare Match A
+  jmp irqNotSet                 ; 15: TIMER1_COMPB   Timer/Counter1 Compare Match B
+  jmp irqNotSet                 ; 16: TIMER1_OVF     Timer/Counter1 Overflow
+  jmp irqNotSet                 ; 17: TIMER0_COMPA   Timer/Counter0 Compare Match A
+  jmp irqNotSet                 ; 18: TIMER0_COMPB   Timer/Counter0 Compare Match B
+  jmp irqNotSet                 ; 19: TIMER0_OVF     Timer/Counter0 Overflow
+  jmp irqNotSet                 ; 20: SPI_STC        Serial Transfer Complete
+  jmp irqNotSet                 ; 21: USART0_RXC     USART0 Rx Complete
+  jmp irqNotSet                 ; 22: USART0_UDRE    USART0 Data Register Empty
+  jmp irqNotSet                 ; 23: USART0_TXC     USART0 Tx Complete
+  jmp irqNotSet                 ; 24: ANA_COMP       Analog Comparator
+  jmp irqNotSet                 ; 25: ADC            ADC Conversion Complete
+  jmp irqNotSet                 ; 26: EE_RDY         EEPROM Ready
+  jmp irqNotSet                 ; 27: TWI            2-Wire Interface
+  jmp irqNotSet                 ; 28: SPM_RDY        Store Program Memory Ready
+
+
+
+; ---------------------------------------------------------------------------
+; Device Info Block
+
+devInfoBlock:        ; 12 bytes
+devInfoManufacturer: .db 'A', 'Q', 'U', 'A'
+devInfoId:           .db DEVICEINFO_ID, 0
+devInfoVersion:      .db DEVICEINFO_VERSION, DEVICEINFO_REVISION             ; version, revision
+firmwareVersion:     .db FIRMWARE_VARIANT_BOOT, FIRMWARE_VERSION_MAJOR
+                     .db FIRMWARE_VERSION_MINOR, FIRMWARE_VERSION_PATCHLEVEL
+
+firmwareStart:
+  jmp main        ; will be overwritten when flashing
+
+irqNotSet:
+  reti
+
+
+
+; ***************************************************************************
+; main code
+
+
+.org BOOTLOADER_ADDR
+
+
+main:
+;  ldi r16, 0xb0   ; orig: a0
+;  out OSCCAL, r16
+  jmp bootLoader ; this routine is in modules/bootloader/main.asm
+
+
+
+; ***************************************************************************
+; includes
+
+.include "common/wait_10us.asm"
+.include "common/utils_copy_from_flash.asm"
+.include "common/utils_copy_sdram.asm"
+
+.include "modules/flash/defs.asm"
+.include "modules/flash/eeprom.asm"
+.include "modules/flash/io.asm"
+.include "modules/flash/io_com2w.asm"
+.include "modules/flash/flash1pmega.asm"
+.include "modules/flash/flashxp.asm"
+.include "modules/flash/flashprocess.asm"
+.include "modules/flash/wait.asm"
+.include "modules/bootloader/main.asm"
+.include "modules/network/msg/defs.asm"
+.include "modules/network/msg/crc.asm"
+
+;.include "common/debug.asm"
+
+
+
+systemSetSpeed:
+  ; speed not changeable at runtime on this device
+  ret
+
+
+
+
diff --git a/avr/devices/c03/defs.asm b/avr/devices/c03/defs.asm
new file mode 100644
index 0000000..d18e0ae
--- /dev/null
+++ b/avr/devices/c03/defs.asm
@@ -0,0 +1,195 @@
+; ***************************************************************************
+; copyright   : (C) 2025 by Martin Preuss
+; email       : martin@libchipcard.de
+;
+; ***************************************************************************
+; * This file is part of the project "AqHome".                              *
+; * Please see toplevel file COPYING of that project for license details.   *
+; ***************************************************************************
+
+
+; ***************************************************************************
+;
+;                                 AtMega644
+;                                 --------
+;                        LED PB0  1     40 PA0 DEV0
+;                        DC  PB1  2     39 PA1 DEV1
+;                      INT2  PB2  3     38 PA2 DEV2
+;                    DSPRES  PB3  4     37 PA3 PA3
+;                        SS  PB4  5     36 PA4 PA4
+;                      MOSI  PB5  6     35 PA5
+;                      MISO  PB6  7     34 PA6
+;                       SCK  PB7  8     33 PA7
+;                         /RESET  9     32 AREF
+;                            VCC 10     31 GND
+;                            GND 11     30 AVCC
+;                          XTAL2 12     29 PC7
+;                          XTAL1 13     28 PC6
+;                       RXD  PD0 14     27 PC5
+;                       TXD  PD1 15     26 PC4
+;                            PD2 16     25 PC3
+;                      INT1  PD3 17     24 PC2
+;                   AUX_PD4  PD4 18     23 PC1
+;                    DSPLED  PD5 19     22 PC0
+;                            PD6 20     21 PD7
+;                                 --------
+;
+; ***************************************************************************
+
+
+
+.equ BOOTLOADER_ADDR = 0x7c00
+
+.equ FIRMWARE_VARIANT_BOOT        = 0
+.equ FIRMWARE_VARIANT_TEMP_WINDOW = 1
+
+.equ DEVICEINFO_ID       = 'C'
+.equ DEVICEINFO_VERSION  = 3
+.equ DEVICEINFO_REVISION = 0
+
+
+
+; ---------------------------------------------------------------------------
+; LED module
+
+.equ LED_SIMPLE_ONTIME  = 1     ; shorter
+.equ LED_SIMPLE_OFFTIME = 50    ; longer
+.equ LED_SIMPLE_DDR     = DDRB
+.equ LED_SIMPLE_PORT    = PORTB
+.equ LED_SIMPLE_PORTIN  = PINB
+.equ LED_SIMPLE_PINNUM  = PORTB0
+
+
+
+; ---------------------------------------------------------------------------
+; COM module
+
+.equ COM_BIT_LENGTH      = 52000 ; 104000ns=9600, 52000ns=19200, 26000ns=38400
+.equ COM_HALFBIT_LENGTH  = 26000 ; see https://de.wikipedia.org/wiki/Universal_Asynchronous_Receiver_Transmitter
+
+.equ COM_DATA_DDR       = DDRA
+.equ COM_DATA_INPUT     = PINA
+.equ COM_DATA_OUTPUT    = PORTA
+.equ COM_DATA_PIN       = PORTA6
+
+.equ COM_CLK_DDR       = DDRA
+.equ COM_CLK_INPUT     = PINA
+.equ COM_CLK_OUTPUT    = PORTA
+.equ COM_CLK_PIN       = PORTA7
+
+; pin change interrupt register and bit
+.equ COM_IRQ_ADDR_CLK    = PCMSK0
+.equ COM_IRQ_BIT_CLK     = PCINT7  ; PA7
+
+; interrupt control register
+.equ COM_IRQ_ICR_ADDR    = PCICR   ; PCICR on AtMega644P, GIMSK on AtTiny
+.equ COM_IRQ_ICR_BIT     = PCIE0
+
+; interrupt flag/mask register
+.equ COM_IRQ_IFR_ADDR    = PCIFR   ; PCIFR on AtMega644P, GIFR on AtTiny
+.equ COM_IRQ_IFR_BIT     = PCIF0
+
+.equ COM_IRQ_GIFR_CLK    = INTF0
+;.equ COM_IRQ_GIMSK_CLK   = PCIE0
+
+
+
+; ---------------------------------------------------------------------------
+; SPI hardware module
+
+.equ SPIHW_SS_DDR      = DDRB
+.equ SPIHW_SS_INPUT    = PINB
+.equ SPIHW_SS_OUTPUT   = PORTB
+.equ SPIHW_SS_PIN      = PORTB4
+
+.equ SPIHW_MOSI_DDR    = DDRB
+.equ SPIHW_MOSI_INPUT  = PINB
+.equ SPIHW_MOSI_OUTPUT = PORTB
+.equ SPIHW_MOSI_PIN    = PORTB5
+
+.equ SPIHW_MISO_DDR    = DDRB
+.equ SPIHW_MISO_INPUT  = PINB
+.equ SPIHW_MISO_OUTPUT = PORTB
+.equ SPIHW_MISO_PIN    = PORTB6
+
+.equ SPIHW_SCK_DDR    = DDRB
+.equ SPIHW_SCK_INPUT  = PINB
+.equ SPIHW_SCK_OUTPUT = PORTB
+.equ SPIHW_SCK_PIN    = PORTB7
+
+.equ SPIHW_SS0_DDR    = DDRA
+.equ SPIHW_SS0_OUTPUT = PORTA
+.equ SPIHW_SS0_INPUT  = PORTA
+.equ SPIHW_SS0_PIN    = PORTA0
+
+.equ SPIHW_SS1_DDR    = DDRA
+.equ SPIHW_SS1_OUTPUT = PORTA
+.equ SPIHW_SS1_INPUT  = PORTA
+.equ SPIHW_SS1_PIN    = PORTA1
+
+.equ SPIHW_SS2_DDR    = DDRA
+.equ SPIHW_SS2_OUTPUT = PORTA
+.equ SPIHW_SS2_INPUT  = PORTA
+.equ SPIHW_SS2_PIN    = PORTA2
+
+
+
+; ---------------------------------------------------------------------------
+; ILI9341 module
+
+.equ DISPLAY_WIDTH        = 320
+.equ DISPLAY_HEIGHT       = 240
+
+.equ ILI9341_DEVICENUM    = 0
+.equ ILI9341_DSP_WIDTH    = DISPLAY_WIDTH
+.equ ILI9341_DSP_HEIGHT   = DISPLAY_HEIGHT
+
+.equ ILI9341_RESET_DDR    = DDRB
+.equ ILI9341_RESET_OUTPUT = PORTB
+.equ ILI9341_RESET_INPUT  = PORTB
+.equ ILI9341_RESET_PIN    = PORTB3
+
+.equ ILI9341_DC_DDR       = DDRB
+.equ ILI9341_DC_OUTPUT    = PORTB
+.equ ILI9341_DC_INPUT     = PORTB
+.equ ILI9341_DC_PIN       = PORTB1
+
+.equ ILI9341_LED_DDR      = DDRD
+.equ ILI9341_LED_OUTPUT   = PORTD
+.equ ILI9341_LED_INPUT    = PORTD
+.equ ILI9341_LED_PIN      = PORTD5
+
+
+
+; ---------------------------------------------------------------------------
+; XPT2046 module
+
+.equ XPT2046_DEVICENUM    = 1
+
+
+
+; ---------------------------------------------------------------------------
+; ComOnUart module
+
+;.equ USART0_DATAREG = UDR
+;.equ UCSR0A = UCSRA
+;.equ UCSR0B = UCSRB
+;.equ UCSR0C = UCSRC
+;.equ UBRR0L = UBRRL
+;.equ UBRR0H = UBRRH
+
+;.equ UCSZ00 = UCSZ0
+;.equ UCSZ01 = UCSZ1
+;.equ UDRE0  = UDRE
+;.equ RXC0   = RXC
+;.equ TXC0   = TXC
+;.equ FE0    = FE
+;.equ DOR0   = DOR
+;.equ UPE0   = UPE
+;.equ RXEN0  = RXEN
+;.equ TXEN0  = TXEN
+;.equ USBS0  = USBS
+;.equ RXCIE0 = RXCIE
+;.equ UDRIE0 = UDRIE
+
+
diff --git a/avr/devices/c03/main/0BUILD b/avr/devices/c03/main/0BUILD
new file mode 100644
index 0000000..725937d
--- /dev/null
+++ b/avr/devices/c03/main/0BUILD
@@ -0,0 +1,34 @@
+<?xml?>
+
+<gwbuild>
+
+  <target type="AvrHexFile" name="c03_firmware" >
+
+    <includes type="avrasm" >
+      -I $(builddir)
+      -I $(srcdir)
+      -I $(topsrcdir)/avr
+      -I $(topbuilddir)/avr
+    </includes>
+
+
+    <sources type="avrasm" >
+      main.asm
+    </sources>
+
+
+  </target>
+
+
+
+  <subdirs>
+  </subdirs>
+
+  <extradist>
+    data.asm
+  </extradist>
+  
+
+</gwbuild>
+
+
diff --git a/avr/devices/c03/main/data.asm b/avr/devices/c03/main/data.asm
new file mode 100644
index 0000000..31ccc2f
--- /dev/null
+++ b/avr/devices/c03/main/data.asm
@@ -0,0 +1,14 @@
+; ***************************************************************************
+; copyright   : (C) 2025 by Martin Preuss
+; email       : martin@libchipcard.de
+;
+; ***************************************************************************
+; * This file is part of the project "AqHome".                              *
+; * Please see toplevel file COPYING of that project for license details.   *
+; ***************************************************************************
+
+
+
+.dseg
+
+
diff --git a/avr/devices/c03/main/dlg_netstats.asm b/avr/devices/c03/main/dlg_netstats.asm
new file mode 100644
index 0000000..4c294dc
--- /dev/null
+++ b/avr/devices/c03/main/dlg_netstats.asm
@@ -0,0 +1,287 @@
+; ***************************************************************************
+; copyright   : (C) 2025 by Martin Preuss
+; email       : martin@libchipcard.de
+;
+; ***************************************************************************
+; * This file is part of the project "AqHome".                              *
+; * Please see toplevel file COPYING of that project for license details.   *
+; ***************************************************************************
+
+#ifndef AQH_AVR_DEVICE_C03_DLG_NETSTATS_ASM
+#define AQH_AVR_DEVICE_C03_DLG_NETSTATS_ASM
+
+.equ DLG_NETSTATS_TIMER_100ms = 50
+
+.equ DLG_NETSTATS_FLAGS_BUTTON_DOWN_BIT = 0
+
+
+.cseg
+
+
+
+DlgNetStats_Init:
+  ldi yl, LOW(dlgNetstats)
+  ldi yh, HIGH(dlgNetstats)
+  bigcall Dialog_Init
+  ; set handler
+  ldi r16, LOW(DlgNetStats_Handler)
+  std Y+DIALOG_OFFS_HANDLER_LO, r16
+  ldi r16, HIGH(DlgNetStats_Handler)
+  std Y+DIALOG_OFFS_HANDLER_HI, r16
+  
+  ; clear vars
+  clr r16
+  sts dlgNetstatsUpdateNum, r16
+  sts dlgNetstatsUpdateNum+1, r16
+  sts dlgNetstatsTimer, r16
+  sts dlgNetstatsFlags, r16
+
+  ret
+; @end
+
+
+
+DlgNetStats_Handler:
+  cpi r23, (DIALOG_FN_TIMER+1)
+  brcc DlgNetStats_Handler_ret
+  ldi zl, LOW(DlgNetStats_Handler_Fns)
+  ldi zh, HIGH(DlgNetStats_Handler_Fns)
+  add zl, r23
+  adc zh, r23
+  sub zh, r23
+  ijmp
+DlgNetStats_Handler_ret:
+  ret
+; @end
+
+
+
+DlgNetStats_Handler_Fns:
+  rjmp dlgNetStatsOnInit
+  rjmp dlgNetStatsOnFini
+  rjmp dlgNetStatsOnShow
+  rjmp dlgNetStatsOnHide
+  ret ; rjmp dlgNetStatsOnTouch
+  rjmp dlgNetStatsOnTimer
+
+
+
+dlgNetStatsOnInit:
+  ret
+
+
+
+dlgNetStatsOnFini:
+  ret
+
+
+
+dlgNetStatsOnShow:
+  push yl
+    push yh
+      mov yl, xl
+      mov yh, xh
+      rcall DlgNetStats_Show
+    pop yh
+  pop yl
+  ret
+
+
+
+dlgNetStatsOnHide:
+  ret
+
+
+
+dlgNetStatsOnTouch:
+  mov r16, r18
+  mov r17, r18
+  mov yl, xl
+  mov yh, xh
+
+  ; check for press change event
+  andi r17, (1<<DISPLAY_IFLAGS_CHGPRESS_BIT)
+  breq dlgNetStatsTouch_ret
+  ; press changed
+  mov r17, r16
+  andi r17, (1<<DISPLAY_IFLAGS_PRESSED_BIT)
+  breq dlgNetStatsTouch_up
+  ; touch came down
+  ldi zl, LOW(dlgNetstats_CloseBtn*2)
+  ldi zh, HIGH(dlgNetstats_CloseBtn*2)
+  bigcall Window_IsPointInRect
+  brcc dlgNetStatsTouch_ret
+  lds r16, dlgNetstatsFlags
+  mov r17, r16
+  andi r17, (1<<DLG_NETSTATS_FLAGS_BUTTON_DOWN_BIT)
+  brne dlgNetStatsTouch_ret                         ; already down, jmp
+  ori r16, (1<<DLG_NETSTATS_FLAGS_BUTTON_DOWN_BIT)
+  sts dlgNetstatsFlags, r16
+  ldi zl, LOW(dlgNetstats_CloseBtn*2)
+  ldi zh, HIGH(dlgNetstats_CloseBtn*2)
+  bigcall Button_Draw_Down
+  rjmp dlgNetStatsTouch_ret
+dlgNetStatsTouch_up:
+  ; touch came up
+  lds r16, dlgNetstatsFlags
+  mov r17, r16
+  andi r17, (1<<DLG_NETSTATS_FLAGS_BUTTON_DOWN_BIT)
+  breq dlgNetStatsTouch_ret                         ; already up, jmp
+  cbr r16, (1<<DLG_NETSTATS_FLAGS_BUTTON_DOWN_BIT)
+  sts dlgNetstatsFlags, r16
+  ldi zl, LOW(dlgNetstats_CloseBtn*2)
+  ldi zh, HIGH(dlgNetstats_CloseBtn*2)
+  bigcall Button_Draw_Up
+  ldi zl, LOW(dlgNetstats_CloseBtn*2)
+  ldi zh, HIGH(dlgNetstats_CloseBtn*2)
+  bigcall Window_IsPointInRect
+  brcc dlgNetStatsTouch_ret
+  ; touch ended over button, TODO
+dlgNetStatsTouch_ret:
+  ret
+
+
+
+dlgNetStatsOnTimer:
+  ldd r16, Y+DIALOG_OFFS_OPTIONS
+  andi r16, (1<<DIALOG_OPT_ACTIVE_BIT)
+  breq dlgNetStatsTimer_ret            ; not visible, hold timer
+  lds r16, dlgNetstatsTimer
+  inc r16
+  sts dlgNetstatsTimer, r16
+  cpi r16, DLG_NETSTATS_TIMER_100ms
+  brcs dlgNetStatsTimer_ret
+  push yl
+    push yh
+      mov yl, xl
+      mov yh, xh
+      rcall DlgNetStats_Update
+    pop yh
+  pop yl
+  clr r16
+  sts dlgNetstatsTimer, r16
+dlgNetStatsTimer_ret:
+  ret
+
+
+
+
+; @param @0 Y
+; @param @1 label addr
+
+.macro DLGNETSTATS_PRINTLABEL
+  ; packets in
+  ldi zl, LOW(@1 * 2)
+  ldi zh, HIGH(@1 * 2)
+  ldi r16, 2         ; X
+  mov r4, r16
+  clr r5
+  ldi r16, LOW(STYLE_WIN_TITLE_HEIGHT+@0)   ; Y
+  mov r6, r16
+  ldi r16, HIGH(STYLE_WIN_TITLE_HEIGHT+@0)
+  mov r7, r16
+  bigcall Window_DrawTextFlash
+.endmacro
+
+
+
+; @param @0 X
+; @param @1 Y
+; @param @2 data address
+
+.macro DLGNETSTATS_PRINTDATA
+  ldi r16, @0       ; X
+  mov r4, r16
+  clr r5
+  ldi r16, LOW(STYLE_WIN_TITLE_HEIGHT+@1)   ; Y
+  mov r6, r16
+  ldi r16, HIGH(@1)
+  mov r7, r16
+  lds r16, @2        ; data
+  lds r17, @2+1
+  bigcall Window_WriteHexWordAt
+.endmacro
+
+
+
+DlgNetStats_Show:
+  ; draw title window basics (with title)
+  ldi zl, LOW(dlgNetstats_title*2)
+  ldi zh, HIGH(dlgNetstats_title*2)
+  bigcall TitleWindow_DrawTitle
+
+  bigcall TitleWindow_ClearContentArea
+
+  ; packets in
+  DLGNETSTATS_PRINTLABEL 2, dlgNetstats_lPacketsIn
+  ; packets out
+  DLGNETSTATS_PRINTLABEL 24, dlgNetstats_lPacketsOut
+  ; eContent
+  DLGNETSTATS_PRINTLABEL 46, dlgNetstats_lContentErr
+  ; eIO
+  DLGNETSTATS_PRINTLABEL 68, dlgNetstats_lIoErr
+  ; eMsgSize
+  DLGNETSTATS_PRINTLABEL 90, dlgNetstats_lMsgSizeErr
+
+  ; update num
+  DLGNETSTATS_PRINTLABEL 114, dlgNetstats_lUpdate
+
+  ldi zl, LOW(dlgNetstats_CloseBtn*2)
+  ldi zh, HIGH(dlgNetstats_CloseBtn*2)
+  bigcall Button_Draw_Up
+  
+  rcall DlgNetStats_Update
+
+  ret
+; @end
+
+
+
+DlgNetStats_Update:
+  lds r16, dlgNetstatsUpdateNum
+  inc r16
+  sts dlgNetstatsUpdateNum, r16
+
+  ; packets in
+  DLGNETSTATS_PRINTDATA 160, 2, netInterfaceData+NET_IFACE_OFFS_PACKETSIN_LOW
+  ; packets out
+  DLGNETSTATS_PRINTDATA 160, 24, netInterfaceData+NET_IFACE_OFFS_PACKETSOUT_LOW
+  ; eContent
+  DLGNETSTATS_PRINTDATA 160, 46, netInterfaceData+NET_IFACE_OFFS_ERR_CONTENT_LOW
+  ; eIO
+  DLGNETSTATS_PRINTDATA 160, 68, netInterfaceData+NET_IFACE_OFFS_ERR_IO_LOW
+  ; eMsgSize
+  DLGNETSTATS_PRINTDATA 160, 90, netInterfaceData+NET_IFACE_OFFS_ERR_MSGSIZE_LOW
+
+  DLGNETSTATS_PRINTDATA 160, 114, dlgNetstatsUpdateNum
+
+  ret
+; @end
+
+
+
+dlgNetstats_title:       .db "Network Statistics", 0, 0
+
+dlgNetstats_lPacketsIn:  .db "Pkgs In :", 0
+dlgNetstats_lPacketsOut: .db "Pkgs Out:", 0
+dlgNetstats_lContentErr: .db "eContent:", 0
+dlgNetstats_lIoErr:      .db "eIO     :", 0
+dlgNetstats_lMsgSizeErr: .db "eMsgSize:", 0
+dlgNetstats_lUpdate:     .db "Update  :", 0
+dlgNetstats_lClose:      .db "Close", 0
+
+
+dlgNetstats_CloseBtn:    .dw 128, (140+STYLE_WIN_TITLE_HEIGHT), 64, 32, (dlgNetstats_lClose*2)
+
+
+
+.dseg
+
+dlgNetstats:          .byte DIALOG_SIZE
+dlgNetstatsUpdateNum: .byte 2
+dlgNetstatsTimer:     .byte 1
+dlgNetstatsFlags:     .byte 1
+
+
+#endif ; AQH_AVR_DEVICE_C03_DLG_NETSTATS_ASM
+
diff --git a/avr/devices/c03/main/main.asm b/avr/devices/c03/main/main.asm
new file mode 100644
index 0000000..da302ce
--- /dev/null
+++ b/avr/devices/c03/main/main.asm
@@ -0,0 +1,294 @@
+; ***************************************************************************
+; copyright   : (C) 2025 by Martin Preuss
+; email       : martin@libchipcard.de
+;
+; ***************************************************************************
+; * This file is part of the project "AqHome".                              *
+; * Please see toplevel file COPYING of that project for license details.   *
+; ***************************************************************************
+
+;.equ clock=1000000 ; Define the clock frequency
+.equ clock=8000000 ; Define the clock frequency
+
+
+
+.nolist
+.include "include/m644Pdef.inc" ; Define device ATmega644P
+.list
+
+.include "version.asm"
+.include "../defs.asm"
+.include "./data.asm"
+
+.include "devices/all/defs.asm"
+.include "common/calls.asm"
+.include "common/utils_wait.asm"
+.include "common/utils_io.asm"
+
+
+
+; ***************************************************************************
+; defines
+
+; ---------------------------------------------------------------------------
+; generic
+
+.equ STACK_SIZE                   = 256
+
+.equ NET_BUFFERS_NUM              = 8
+.equ NET_MSGNUMINBUF_SIZE         =  8 ; max buffer nums in ringbuffer (global incoming)
+.equ NET_IFACE_OUTMSGBUF_SIZE     =  8 ; max buffer nums in ringbuffer (per interface outbound)
+
+
+
+; ---------------------------------------------------------------------------
+; firmware settings including list of modules used
+
+; #define MODULES_TIMER
+#define MODULES_CLOCK
+;#define MODULES_XRAM
+;#define MODULES_HEAP
+#define MODULES_LED_SIMPLE
+#define MODULES_NETWORK
+;#define MODULES_COMONUART0
+;#define MODULES_UART_HW
+;#define MODULES_UART_BITBANG
+#define MODULES_COM2W
+#define MODULES_SPI_HW
+#define MODULES_ILI9341
+#define MODULES_XPT2046
+#define MODULES_FONT
+#define MODULES_GUI
+;#define MODULES_TWI_MASTER
+;#define MODULES_LCD
+;#define LCD_MINIMAL_FONT
+;#define MODULES_SI7021
+;#define MODULES_SGP30
+;#define MODULES_SGP40
+;#define MODULES_STATS
+;#define MODULES_OWI_MASTER
+;#define MODULES_DS18B20
+;#define MODULES_MOTION
+;#define MODULES_CCS811
+
+#define APPS_NETWORK
+;#define APPS_MOTION
+;#define APPS_REPORTSENSORS
+#define APPS_STATS
+
+
+
+; ---------------------------------------------------------------------------
+; defines for values
+
+.equ VALUE_ID_SI7021_TEMP      = 0x01
+.equ VALUE_ID_SI7021_HUM       = 0x02
+
+.equ VALUE_ID_ADC              = 0x03
+;.equ VALUE_ID_DS18B20_TEMP     = 0x06
+.equ VALUE_ID_MOTION           = 0x07
+
+.equ VALUE_ID_SGP40_TVOC       = 0x08
+
+.equ VALUE_ID_SGP30_TVOC       = 0x09
+.equ VALUE_ID_SGP30_CO2        = 0x0a
+
+;.equ VALUE_ID_REED_CONF    = 0x81
+
+.equ VALUE_ID_DEBUG            = 0x7f
+
+.equ VALUE_ID_LEDSIMPLE_TIMING = 0x88
+
+
+
+
+
+; ***************************************************************************
+; code segment
+
+.cseg
+.org 000000
+
+
+
+; ---------------------------------------------------------------------------
+; Reset and interrupt vectors
+  jmp BOOTLOADER_ADDR           ;  1: Reset vector   RESET
+  jmp irqNotSet                 ;  2: INT0           External Interrupt Request 0
+  jmp irqNotSet                 ;  3: INT1           External Interrupt Request 1
+  jmp irqNotSet                 ;  4: INT2           External Interrupt Request 2
+  jmp com2wPcintIsr             ;  5: PCINT0         Pin Change Interrupt Request 0
+  jmp irqNotSet                 ;  6: PCINT1         Pin Change Interrupt Request 1
+  jmp irqNotSet                 ;  7: PCINT2         Pin Change Interrupt Request 2
+  jmp irqNotSet                 ;  8: PCINT3         Pin Change Interrupt Request 3
+  jmp irqNotSet                 ;  9: WDT            Watchdog Time-out Interrupt
+  jmp irqNotSet                 ; 10: TIMER2_COMPA   Timer/Counter2 Compare Match A
+  jmp irqNotSet                 ; 11: TIMER2_COMPB   Timer/Counter2 Compare Match B
+  jmp irqNotSet                 ; 12: TIMER2_OVF     Timer/Counter2 Overflow
+  jmp irqNotSet                 ; 13: TIMER1_CAPT    Timer/Counter1 Capture Event
+  jmp irqNotSet                 ; 14: TIMER1_COMPA   Timer/Counter1 Compare Match A
+  jmp irqNotSet                 ; 15: TIMER1_COMPB   Timer/Counter1 Compare Match B
+  jmp irqNotSet                 ; 16: TIMER1_OVF     Timer/Counter1 Overflow
+  jmp baseTimerIrqOC0A          ; 17: TIMER0_COMPA   Timer/Counter0 Compare Match A
+  jmp irqNotSet                 ; 18: TIMER0_COMPB   Timer/Counter0 Compare Match B
+  jmp irqNotSet                 ; 19: TIMER0_OVF     Timer/Counter0 Overflow
+  jmp irqNotSet                 ; 20: SPI_STC        Serial Transfer Complete
+  jmp irqNotSet                 ; 21: USART0_RXC     USART0 Rx Complete
+  jmp irqNotSet                 ; 22: USART0_UDRE    USART0 Data Register Empty
+  jmp irqNotSet                 ; 23: USART0_TXC     USART0 Tx Complete
+  jmp irqNotSet                 ; 24: ANA_COMP       Analog Comparator
+  jmp irqNotSet                 ; 25: ADC            ADC Conversion Complete
+  jmp irqNotSet                 ; 26: EE_RDY         EEPROM Ready
+  jmp irqNotSet                 ; 27: TWI            2-Wire Interface
+  jmp irqNotSet                 ; 28: SPM_RDY        Store Program Memory Ready
+
+
+
+devInfoBlock:        ; 12 bytes
+devInfoManufacturer: .db 'A', 'Q', 'U', 'A'
+devInfoId:           .db DEVICEINFO_ID, 0
+devInfoVersion:      .db DEVICEINFO_VERSION, DEVICEINFO_REVISION             ; version, revision
+firmwareVersion:     .db FIRMWARE_VARIANT_TEMP_WINDOW, FIRMWARE_VERSION_MAJOR
+                     .db FIRMWARE_VERSION_MINOR, FIRMWARE_VERSION_PATCHLEVEL
+
+
+
+; ---------------------------------------------------------------------------
+; @routine firmwareStart @global
+
+firmwareStart:
+  rjmp main
+; @end
+
+
+irqNotSet:
+  reti
+
+
+
+; ---------------------------------------------------------------------------
+; @routine onSystemStart
+
+onSystemStart:
+  clr r16
+  sts statsUpdateTimer, r16
+  bigcall test
+  ret
+; @end
+
+
+
+; ---------------------------------------------------------------------------
+; @routine onMessageReceived
+;
+; Called on every message received
+
+onMessageReceived:
+  clc
+  ret
+; @end
+
+
+
+; ---------------------------------------------------------------------------
+; @routine onEvery100ms
+;
+; Called every 100ms. Add your routine calls here. No arguments, no results.
+
+onEvery100ms:
+  bigcall DialogMgr_Every100ms
+  ret
+
+onEveryMinute:
+onEveryHour:
+onEveryDay:
+  ret
+; @end
+
+
+onEverySecond:
+#if 0
+#ifdef MODULES_GUI
+  lds r16, statsUpdateTimer
+  inc r16
+  cpi r16, 5
+  brcc onEverySecond_updateStats
+  sts statsUpdateTimer, r16
+  ret
+onEverySecond_updateStats:
+  bigcall WinNetStats_Update
+  clr r16
+  sts statsUpdateTimer, r16
+#endif
+#endif
+  ret
+
+
+
+; ---------------------------------------------------------------------------
+; @routine onEveryLoop
+;
+; Called on every loop (i.e. after awakening from sleep).
+;
+onEveryLoop:
+  ret
+; @end
+
+
+
+test:
+  bigcall DialogMgr_Init
+  bigcall DlgNetStats_Init
+  bigcall DialogMgr_PushDialog
+  ret
+
+
+
+
+
+; ***************************************************************************
+; includes
+
+.include "devices/all/hw_m644p.asm"
+.include "devices/all/includes.asm"
+
+.include "common/debug.asm"
+
+ .include "modules/lcd2/gui/titlewindow2.asm"
+ .include "modules/lcd2/gui/dialog.asm"
+ .include "modules/lcd2/gui/button.asm"
+;.include "modules/lcd2/font/font2.asm"
+;.include "modules/lcd2/font/font3.asm"
+;.include "modules/lcd2/font/font16x26.asm"
+;.include "modules/lcd2/font/font4.asm"
+;.include "modules/lcd2/font/font12x16.asm"
+.include "modules/lcd2/ili9341/font12x20.asm"
+.include "modules/lcd2/ili9341/font12x20_1.asm"
+;.include "common/list_t.asm"
+;.include "common/tree_t.asm"
+.include "common/divide.asm"
+
+ .include "modules/lcd2/gui/style.asm"
+ .include "dlg_netstats.asm"
+
+
+; ---------------------------------------------------------------------------
+; defines for network interface
+
+;.equ netInterfaceData = netUartIface
+;.equ netInterfaceData = uart_bitbang_iface
+.equ netInterfaceData = com2w_iface
+
+
+
+
+
+.dseg
+
+statsUpdateTimer: .byte 1
+
+heapStart:
+
+.equ HEAP_START = heapStart
+.equ HEAP_SIZE  = (SRAM_SIZE-STACK_SIZE)-HEAP_START
+
diff --git a/avr/devices/c03/main/win_netstats.asm b/avr/devices/c03/main/win_netstats.asm
new file mode 100644
index 0000000..9733e20
--- /dev/null
+++ b/avr/devices/c03/main/win_netstats.asm
@@ -0,0 +1,187 @@
+; ***************************************************************************
+; copyright   : (C) 2025 by Martin Preuss
+; email       : martin@libchipcard.de
+;
+; ***************************************************************************
+; * This file is part of the project "AqHome".                              *
+; * Please see toplevel file COPYING of that project for license details.   *
+; ***************************************************************************
+
+#ifndef AQH_AVR_DEVICE_C02_WIN_NETSTATS_ASM
+#define AQH_AVR_DEVICE_C02_WIN_NETSTATS_ASM
+
+
+.cseg
+
+
+WinNetStats_Init:
+  clr r16
+  sts winNetstatsUpdateNum, r16
+  sts winNetstatsUpdateNum+1, r16
+
+  ; setup
+  ldi yl, LOW(winNetstats)
+  ldi yh, HIGH(winNetstats)
+  bigcall TitleWindow_Init
+
+  ldi zl, LOW(STYLE_WIN_FONT*2)
+  ldi zh, HIGH(STYLE_WIN_FONT*2)
+  std Y+WIN_OFFS_FONT_LO, zl
+  std Y+WIN_OFFS_FONT_HI, zh
+  
+  bigcall TitleWindow_SetFullSize  
+  bigcall TitleWindow_SetStyleColors
+
+  ret
+; @end
+
+
+
+; @param @0 Y
+; @param @1 label addr
+
+.macro WINNETSTATS_PRINTLABEL
+  ; packets in
+  ldi zl, LOW(@1 * 2)
+  ldi zh, HIGH(@1 * 2)
+  ldi r16, 2         ; X
+  mov r4, r16
+  clr r5
+  ldi r16, LOW(STYLE_WIN_TITLE_HEIGHT+@0)   ; Y
+  mov r6, r16
+  ldi r16, HIGH(STYLE_WIN_TITLE_HEIGHT+@0)
+  mov r7, r16
+  bigcall Window_DrawTextFlash
+.endmacro
+
+
+
+; @param @0 X
+; @param @1 Y
+; @param @2 data address
+
+.macro WINNETSTATS_PRINTDATA
+  ldi r16, @0       ; X
+  mov r4, r16
+  clr r5
+  ldi r16, LOW(STYLE_WIN_TITLE_HEIGHT+@1)   ; Y
+  mov r6, r16
+  ldi r16, HIGH(@1)
+  mov r7, r16
+  lds r16, @2        ; data
+  lds r17, @2+1
+  bigcall Window_WriteHexWordAt
+.endmacro
+
+
+
+WinNetStats_Show:
+  ; draw title window basics (with title)
+  ldi yl, LOW(winNetstats)
+  ldi yh, HIGH(winNetstats)
+  ldi zl, LOW(winNetstats_title*2)
+  ldi zh, HIGH(winNetstats_title*2)
+  bigcall TitleWindow_DrawTitle
+
+  bigcall TitleWindow_ClearContentArea
+
+  ; packets in
+  WINNETSTATS_PRINTLABEL 2, winNetstats_lPacketsIn
+  ; packets out
+  WINNETSTATS_PRINTLABEL 24, winNetstats_lPacketsOut
+  ; eContent
+  WINNETSTATS_PRINTLABEL 46, winNetstats_lContentErr
+  ; eIO
+  WINNETSTATS_PRINTLABEL 68, winNetstats_lIoErr
+  ; eMsgSize
+  WINNETSTATS_PRINTLABEL 90, winNetstats_lMsgSizeErr
+
+  ; draw horizontal line
+  ldi r16, STYLE_WIN_TITLE_HEIGHT+112
+  mov r6, r16
+  clr r7
+  clr r4
+  clr r5
+  ldi r16, LOW(DISPLAY_WIDTH)
+  mov r8, r16
+  ldi r16, HIGH(DISPLAY_WIDTH)
+  mov r9, r16
+  clr r2
+  clr r3
+  bigcall Display_DrawHLine
+
+  ; X
+  WINNETSTATS_PRINTLABEL 114, winNetstats_lX
+  ; Y
+  WINNETSTATS_PRINTLABEL 136, winNetstats_lY
+  ; Z
+  WINNETSTATS_PRINTLABEL 158, winNetstats_lZ
+  ; update num
+  WINNETSTATS_PRINTLABEL 180, winNetstats_lUpdate
+
+  rcall WinNetStats_Update
+
+  ret
+; @end
+
+
+
+WinNetStats_Update:
+  lds r16, winNetstatsUpdateNum
+  inc r16
+  sts winNetstatsUpdateNum, r16
+
+  ldi yl, LOW(winNetstats)
+  ldi yh, HIGH(winNetstats)
+
+  ; packets in
+  WINNETSTATS_PRINTDATA 160, 2, netInterfaceData+NET_IFACE_OFFS_PACKETSIN_LOW
+  ; packets out
+  WINNETSTATS_PRINTDATA 160, 24, netInterfaceData+NET_IFACE_OFFS_PACKETSOUT_LOW
+  ; eContent
+  WINNETSTATS_PRINTDATA 160, 46, netInterfaceData+NET_IFACE_OFFS_ERR_CONTENT_LOW
+  ; eIO
+  WINNETSTATS_PRINTDATA 160, 68, netInterfaceData+NET_IFACE_OFFS_ERR_IO_LOW
+  ; eMsgSize
+  WINNETSTATS_PRINTDATA 160, 90, netInterfaceData+NET_IFACE_OFFS_ERR_MSGSIZE_LOW
+
+  ; X
+  WINNETSTATS_PRINTDATA 160, 114, xpt2046CurrentX
+  WINNETSTATS_PRINTDATA 240, 114, xpt2046RawX
+  ; Y
+  WINNETSTATS_PRINTDATA 160, 136, xpt2046CurrentY
+  WINNETSTATS_PRINTDATA 240, 136, xpt2046RawY
+  ; Z
+  WINNETSTATS_PRINTDATA 160, 158, xpt2046CurrentZ
+  ; update num
+  WINNETSTATS_PRINTDATA 160, 180, winNetstatsUpdateNum
+
+  ret
+; @end
+
+
+
+winNetstats_title:       .db "Network Statistics", 0, 0
+
+winNetstats_lPacketsIn:  .db "Pkgs In :", 0
+winNetstats_lPacketsOut: .db "Pkgs Out:", 0
+winNetstats_lContentErr: .db "eContent:", 0
+winNetstats_lIoErr:      .db "eIO     :", 0
+winNetstats_lMsgSizeErr: .db "eMsgSize:", 0
+winNetstats_lX:          .db "X       :", 0
+winNetstats_lY:          .db "Y       :", 0
+winNetstats_lZ:          .db "Z       :", 0
+winNetstats_lUpdate:     .db "Update  :", 0
+.dseg
+
+winNetstats:
+  .byte WIN_SIZE
+
+
+
+.dseg
+
+winNetstatsUpdateNum: .byte 2
+
+
+#endif
diff --git a/devices/nodes/0BUILD b/devices/nodes/0BUILD
index bf990a7..b3a3db8 100644
--- a/devices/nodes/0BUILD
+++ b/devices/nodes/0BUILD
@@ -4,6 +4,7 @@
   <data dist="true" install="$(datadir)/aqhome/devices/nodes">
     aqua_c01.xml
     aqua_c02.xml
+    aqua_c03.xml
     aqua_n06.xml
     aqua_n11.xml
     aqua_n12.xml
diff --git a/devices/nodes/aqua_c03.xml b/devices/nodes/aqua_c03.xml
new file mode 100644
index 0000000..11bed37
--- /dev/null
+++ b/devices/nodes/aqua_c03.xml
@@ -0,0 +1,12 @@
+
+<device name="aqua_c03" driver="nodes">
+  <manufacturer>AQUA</manufacturer>
+  <devicetype>C</devicetype>
+  <deviceversion>3</deviceversion>
+  
+  <values>
+    <value name="LEDTIMING"    id="0x88" type="actor"  dataType="uint16" />
+
+  </values>
+
+</device>
diff --git a/flashnode.sh b/flashnode.sh
index 2b9adf8..c04a68c 100755
--- a/flashnode.sh
+++ b/flashnode.sh
@@ -23,6 +23,13 @@ case $NODE in
        EFUSE_ARG="-U efuse:w:0xFF:m"
        FILE_ARG="-U flash:w:./0-build/avr/devices/c02/boot/c02_boot.hex"
        ;;
+  c03)
+       DEVICE_ARG="-p m644p"
+       HFUSE_ARG="-U hfuse:w:0xD5:m"
+       LFUSE_ARG="-U lfuse:w:0xE2:m"
+       EFUSE_ARG="-U efuse:w:0xFF:m"
+       FILE_ARG="-U flash:w:./0-build/avr/devices/c03/boot/c03_boot.hex"
+       ;;
   n14)
        DEVICE_ARG="-p t85"
        HFUSE_ARG="-U hfuse:w:0xD7:m"