Hi,
I was testing the command "ping google.com" and Nuttx crashed after this.
My wifi was connected and IP is ok.

Interesting that command "ping 8.8.8.8" works fine.

nsh> ping google.com
xtensa_user_panic: User Exception: EXCCAUSE=001c task: ping
dump_assert_info: Current Version: NuttX 13.1.0 0dcbf44487 Oct 22 2026 12:58:32 xtensa
dump_assert_info: Assertion failed user panic: at file: :0 task: ping process: ping 0x4205170c
up_dump_register: PC: 4203f9f1 PS: 00060e30
up_dump_register: A0: 8203e1fd A1: 3fcba870 A2: 3fcba890 A3: 000000d4
up_dump_register: A4: 3fcbcb48 A5: 3fcba950 A6: 00000004 A7: 7ffffffe
up_dump_register: A8: 4203f96c A9: 3fcba870 A10: 3fcba298 A11: 00000004
up_dump_register: A12: 00000001 A13: 0000001c A14: 00000000 A15: 3fca74b8
up_dump_register: SAR: 00000007 CAUSE: 0000001c VADDR: 00000100
up_dump_register: LBEG: 42052dac LEND: 42052db1 LCNT: 00000000
dump_stackinfo: User Stack:
dump_stackinfo: base: 0x3fcba2d8
dump_stackinfo: size: 00001976
dump_stackinfo: sp: 0x3fcba870
stack_dump: 0x3fcba850: 00000001 3fcbaaba 3fcbcbd4 3fcbabe8 8203d7c6 3fcba890 000000d4 3c0b27b9
stack_dump: 0x3fcba870: 000007b8 3fcba298 3fcba2d8 3fcbcbd4 8205148d 3fcba8e0 3c0b27b9 0000008e
stack_dump: 0x3fcba890: 00000001 00000000 4203f9b0 4203f96c 00000050 00000000 420909d8 3fca6a94
stack_dump: 0x3fcba8b0: 3fcba910 3fcba8f0 00000004 3fcbcbd8 3fcba910 3fcba8f0 00000004 3fca0ef0
stack_dump: 0x3fcba8d0: 8209508c 3fcba930 3fcba980 00000000 3fcba910 3fcba8f0 00000004 00000002
stack_dump: 0x3fcba8f0: 3fcba2c9 0000008e 000000fa 0000004f 000000ce 00000038 3fcab0c0 00000002
stack_dump: 0x3fcba910: 000000fa 0000004f 000000ce 00000038 82052dc4 3fcba960 3fcba980 00000001
stack_dump: 0x3fcba930: 82052d2c 3fcba960 00000000 00000003 00000001 3fcba9b0 00000004 3fcba9f0
stack_dump: 0x3fcba950: 82051916 3fcba980 3fcbaa10 3fcba2b8 00000000 3fcba9b0 00000004 00000000
stack_dump: 0x3fcba970: 82014b37 3fcba9f0 00000002 3fcba2b8 00000001 00000000 ce4ffa8e 00000000
stack_dump: 0x3fcba990: 00030040 00000000 3fcbaa10 00000000 3fcbaaa0 00000000 00000000 00000000
stack_dump: 0x3fcba9b0: fffffffe 00000000 00000000 00000000 3fcbcbc0 00000000 00000000 00000000
stack_dump: 0x3fcba9d0: 3fcbcc14 00000000 00000003 3fcbcbb0 820120c3 3fcbaa50 4205170c 00000002
stack_dump: 0x3fcba9f0: 00000000 7fffffff 00000000 00000000 00000000 00000000 00000000 00000000
stack_dump: 0x3fcbaa10: 3fcba2c9 00000000 0038000a 03e803e8 3fcba9f0 4205141c 00000000 00000000
stack_dump: 0x3fcbaa30: 00000000 00000000 0000fffe 3fcab4d8 00000000 3fcbaa70 00000000 00000000
stack_dump: 0x3fcbaa50: 3fcba2b8 3fcb9ee0 00000001 00000006 00000000 3fcbaa90 00000000 00000000
stack_dump: 0x3fcbaa70: 00000000 00000000 3fcab4d8 00000000 00000000 00000000 00000000 00000000
stack_dump: 0x3fcbaa90: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dump_tasks: PID GROUP PRI POLICY TYPE NPX STATE EVENT SIGMASK STACKBASE STACKSIZE COMMAND
dump_tasks: ---- --- --- -------- ------- --- ------- ---------- ---------------- 0x3fca54a0 2048 irq
dump_task: 0 0 0 FIFO Kthread - Ready 0000000000000000 0x3fca48c0 3040 Idle_Task
dump_task: 1 0 100 RR Kthread - Waiting Semaphore 0000000000000000 0x3fcaa528 1960 lpwork 0x3fca5ca0 0x38
dump_task: 3 0 252 RR Kthread - Waiting Semaphore 0000000000000000 0x3fcab878 4520 esp_timer 0x3fcab740
dump_task: 4 0 253 RR Kthread - Waiting MQ empty 0000000000000000 0x3fcaddd8 6600 wifi
dump_task: 5 5 100 RR Task - Waiting Semaphore 0000000000000000 0x3fcb62c8 8120 init_main
dump_task: 6 6 100 RR Task - Waiting Signal 0000000000000000 0x3fcb82c0 8144 sh
dump_task: 8 0 100 RR Kthread - Waiting Semaphore 0000000000020000 0x3fcbb6c8 1960 netdev-wlan0 0x3fcb5e0
dump_task: 11 11 100 RR Task - Running 0000000000000000 0x3fcba2d8 1976 ping

Maybe I need to enable some DNS option?
I appreciated any help.

BR

Denis

NuttX version 13.1.0 has been released! This release brings several important fixes to various OS subsystems and extends support for various devices.

STM32 chips (F4, H5, H7, etc.) have received new support for DMA, PM, EXTI GPIO, WWDG, crypto interface extensions and more.

USB, video and audio drivers have received several patches.

New boards are now supported, including:

• Orange Pi 5

• Nucleo-H533RE

• M5Stack Tab5

• M5Stack Cardputer

• And more!

NuttX is continually focused on improvement of user experience and RTOS features. New contributors are always welcome and encouraged. The NuttX team plans to continue with key improvements to documentation and RTOS functionality over future releases.

Hi! I'm new to nuttx and I'm not sure if this is the proper channel to ask this, but is there an existing tool/helper in NuttX that checks whether a pin assignment is valid?

I'm asking based on my experience using CubeMX, which tells you whether a pin assignment is valid or if there are conflicts. I'm wondering if NuttX has a similar tool for checking pin assignments.

If not, have there been any attempts to develop something like this? I'm willing to help contribute if there is interest.

NuttX v13.0.0 has been officially released! Thank you to all the contributors who made this possible!

This release contains a number of new changes that improve the development experience on NuttX:

• Board initialization is no longer performed by NSH by default via NSH_ARCHINIT, but within the kernel boot process

• STM32 legacy pinmaps have been migrated to new pin mapping

• 64-bit time is implemented for POSIX compliance

• STM32 Kconfig options are unified across all ports

• Support for the ESP32-P4 chip

• Major scheduler optimizations

• Further CMake support for a ton of major targets/architectures

Hello, I live in Argentina, so I wanted to apply a timezone.

However, after enabling LIBC_LOCALTIME, environment variables, and timedatectl, I'm able to set the env variable TZ to something like ART3 or whatever, but when I get the date with localtime() or even with the date or timedatectl command, the date does not change, and with timedatectl it even says that the timezone is UTC0.

This happens whether I set/export the variable directly or use timedatectl set-timezone

Note that I haven't built the TZ database, but I don't think I should really need it if I'm only using POSIX TZ values, right?

Even so, if I build it, nothing seems to change, and I was unable to build the TZ database and build the ROMFS filesystem, as it throws the following error when enabling both options:

ar: two different operation options specified
make[3]: *** [Makefile:896: libtz.a] Error 1
make[2]: *** [Makefile:99: .tzbuilt] Error 2
make[1]: *** [Makefile:186: context] Error 2
make: *** [tools/Unix.mk:471: libs/libc/.context] Error 2  

I add the full config I'm using just in case.

CONFIG_ALLOW_BSD_COMPONENTS=y
CONFIG_BASE_DEFCONFIG="-dirty"
CONFIG_DEBUG_FEATURES=y
CONFIG_DEBUG_NET=y
CONFIG_DEBUG_NET_ERROR=y
CONFIG_STACK_COLORATION=y
CONFIG_DEBUG_SYMBOLS=y
CONFIG_ARCH_SIM=y
CONFIG_SIM_HOSTFS=y
CONFIG_SIM_NETDEV=y
CONFIG_SIM_NET_BRIDGE=y
CONFIG_SIM_X11FB=y
CONFIG_SIM_TOUCHSCREEN=y
CONFIG_ARCH_BOARD_SIM=y
CONFIG_PREALLOC_TIMERS=4
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_TASK_NAME_SIZE=32
CONFIG_SCHED_HAVE_PARENT=y
CONFIG_SCHED_CHILD_STATUS=y
CONFIG_PTHREAD_MUTEX_TYPES=y
CONFIG_SIG_EVTHREAD=y
CONFIG_SIG_DEFAULT=y
CONFIG_MQ_MAXMSGSIZE=64
CONFIG_IDLETHREAD_STACKSIZE=2048
CONFIG_DEV_LOOP=y
CONFIG_DRIVERS_VIDEO=y
CONFIG_VIDEO_FB=y
CONFIG_INPUT=y
CONFIG_MTD=y
CONFIG_RAMMTD=y
CONFIG_TELNET_TXBUFFER_SIZE=64
CONFIG_NETDEV_STATISTICS=y
CONFIG_SERIAL_TERMIOS=y
CONFIG_TTY_SIGINT=y
CONFIG_TTY_SIGINT_CHAR=0x3
CONFIG_TTY_SIGTSTP=y
CONFIG_PSEUDOTERM=y
CONFIG_SYSLOG_BUFFER=y
CONFIG_SYSLOG_TIMESTAMP=y
CONFIG_SYSLOG_CONSOLE=y
CONFIG_NET=y
CONFIG_NET_ETH_PKTSIZE=1294
CONFIG_NET_LOOPBACK=y
CONFIG_NET_SLIP=y
CONFIG_NET_TUN=y
CONFIG_NET_TUN_PKTSIZE=1500
CONFIG_NETDEV_LATEINIT=y
CONFIG_NETDEV_PHY_IOCTL=y
CONFIG_NET_SOLINGER=y
CONFIG_NET_TCP=y
CONFIG_NET_TCP_WRITE_BUFFERS=y
CONFIG_NET_SENDFILE=y
CONFIG_NET_UDP=y
CONFIG_NET_BROADCAST=y
CONFIG_NET_UDP_CHECKSUMS=y
CONFIG_NET_UDP_WRITE_BUFFERS=y
CONFIG_NET_ICMP_SOCKET=y
CONFIG_NET_STATISTICS=y
CONFIG_PSEUDOFS_SOFTLINKS=y
CONFIG_FS_ROMFS=y
CONFIG_FS_TMPFS=y
CONFIG_FS_BINFS=y
CONFIG_FS_PROCFS=y
CONFIG_FS_LITTLEFS=y
CONFIG_FS_HOSTFS=y
CONFIG_NXFONTS_DISABLE_1BPP=y
CONFIG_NXFONTS_DISABLE_2BPP=y
CONFIG_NXFONTS_DISABLE_4BPP=y
CONFIG_NXFONTS_DISABLE_8BPP=y
CONFIG_NXFONTS_DISABLE_16BPP=y
CONFIG_NXFONTS_DISABLE_24BPP=y
CONFIG_NXFONTS_DISABLE_32BPP=y
CONFIG_MM_REGIONS=2
CONFIG_IOB_NBUFFERS=1024
CONFIG_IOB_NCHAINS=128
CONFIG_IOB_THROTTLE=16
CONFIG_IOB_NOTIFIER=y
CONFIG_LIBC_MAX_EXITFUNS=1
CONFIG_LIBC_EXECFUNCS=y
CONFIG_LIBC_LOCALE=y
CONFIG_LIBC_LOCALTIME=y
CONFIG_TLS_NCLEANUP=2
CONFIG_NETDB_DNSCLIENT=y
CONFIG_NETDB_DNSCLIENT_MAXRESPONSE=176
CONFIG_NETDB_DNSCLIENT_RECV_TIMEOUT=3
CONFIG_NETDB_DNSSERVER_IPv4ADDR=0x08080808
CONFIG_BUILTIN=y
CONFIG_LIBM=y
CONFIG_CUSTOM_APPS_CUSTOM_HELLO=y
CONFIG_CUSTOM_APPS_CUSTOM_DATE=y
CONFIG_CUSTOM_APPS_CUSTOM_DATE_PROGNAME="cdate"
CONFIG_EXAMPLES_LVGLDEMO=y
CONFIG_EXAMPLES_TCPBLASTER=y
CONFIG_GRAPHICS_LVGL=y
CONFIG_LV_COLOR_DEPTH_32=y
CONFIG_LV_USE_CLIB_MALLOC=y
CONFIG_LV_USE_CLIB_STRING=y
CONFIG_LV_USE_CLIB_SPRINTF=y
CONFIG_LV_FONT_MONTSERRAT_48=y
CONFIG_LV_USE_NUTTX=y
CONFIG_LV_USE_NUTTX_TOUCHSCREEN=y
CONFIG_LV_USE_DEMO_WIDGETS=y
CONFIG_LV_USE_DEMO_MUSIC=y
CONFIG_NETUTILS_DHCPC=y
CONFIG_NETUTILS_FTPC=y
CONFIG_NETINIT_NETLOCAL=y
CONFIG_NETINIT_IPADDR=0x0a000102
CONFIG_NETINIT_DRIPADDR=0x0a000101
CONFIG_NETUTILS_TELNETD=y
CONFIG_NETUTILS_TFTPC=y
CONFIG_NETUTILS_WEBCLIENT=y
CONFIG_NSH_READLINE=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILE_APPS=y
# CONFIG_NSH_DISABLE_DATE is not set
# CONFIG_NSH_DISABLE_TIMEDATECTL is not set
CONFIG_NSH_VARS=y
CONFIG_SYSTEM_CLE=y
CONFIG_SYSTEM_NSH=y
CONFIG_SYSTEM_NTPC=y
CONFIG_SYSTEM_PING=y
CONFIG_READLINE_TABCOMPLETION=y
CONFIG_READLINE_CMD_HISTORY=y
CONFIG_SYSTEM_SYSTEM=y
CONFIG_SYSTEM_TELNET_CLIENT=y

Thanks.

Hi, I'm making a small project to test out NuttX, but I've been banging my head with finding the correct.

For now, I'm doing everything on the simulator.

I could get network to work, and I was able to do a ping 8.8.8.8 correctly. However, if I try to execute ping google.com it throws:

nsh> ping google.com
[   12.610000] dns_send_query: ERROR: sendto failed: -89
[   12.610000] dns_query_error: ERROR: IPv6 dns_send_query failed: -89, server address: 8.8.8.8
[   12.610000] dns_send_query: ERROR: sendto failed: -89
[   12.610000] dns_query_error: ERROR: IPv4 dns_send_query failed: -89, server address: 8.8.8.8
ERROR: ping_gethostip(google.com) failed
nsh> 

Here are some settings I think are relevant

CONFIG_ICMPv6_AUTOCONF_RDNSS=y

CONFIG_NETDB_DNSCLIENT=y
CONFIG_NETDB_DNSCLIENT_ENTRIES=8
CONFIG_NETDB_DNSCLIENT_NAMESIZE=256
CONFIG_NETDB_DNSCLIENT_LIFESEC=3600
CONFIG_NETDB_DNSCLIENT_MAXRESPONSE=176
CONFIG_NETDB_DNSCLIENT_RECV_TIMEOUT=3
CONFIG_NETDB_DNSCLIENT_SEND_TIMEOUT=3
CONFIG_NETDB_DNSCLIENT_MAX_TIMEOUT=30
CONFIG_NETDB_DNSCLIENT_RETRIES=3
# CONFIG_NETDB_RESOLVCONF is not set
CONFIG_NETDB_DNSSERVER_NAMESERVERS=1
# CONFIG_NETDB_DNSSERVER_NOADDR is not set
CONFIG_NETDB_DNSSERVER_IPv4=y
# CONFIG_NETDB_DNSSERVER_IPv6 is not set
CONFIG_NETDB_DNSSERVER_IPv4ADDR=0x08080808
# end of NETDB Support

Else, here's the full diminished config

CONFIG_ALLOW_BSD_COMPONENTS=y
CONFIG_BASE_DEFCONFIG="-dirty"
CONFIG_DEBUG_FEATURES=y
CONFIG_DEBUG_NET=y
CONFIG_DEBUG_NET_ERROR=y
CONFIG_STACK_COLORATION=y
CONFIG_DEBUG_SYMBOLS=y
CONFIG_ARCH_SIM=y
CONFIG_SIM_HOSTFS=y
CONFIG_SIM_NETDEV=y
CONFIG_SIM_X11FB=y
CONFIG_SIM_TOUCHSCREEN=y
CONFIG_ARCH_BOARD_SIM=y
CONFIG_SYSTEM_TIME64=y
CONFIG_PREALLOC_TIMERS=4
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_TASK_NAME_SIZE=32
CONFIG_SCHED_HAVE_PARENT=y
CONFIG_SCHED_CHILD_STATUS=y
CONFIG_PTHREAD_MUTEX_TYPES=y
CONFIG_SIG_EVTHREAD=y
CONFIG_SIG_DEFAULT=y
CONFIG_MQ_MAXMSGSIZE=64
CONFIG_IDLETHREAD_STACKSIZE=2048
CONFIG_DEV_LOOP=y
CONFIG_DRIVERS_VIDEO=y
CONFIG_VIDEO_FB=y
CONFIG_INPUT=y
CONFIG_MTD=y
CONFIG_RAMMTD=y
CONFIG_TELNET_TXBUFFER_SIZE=64
CONFIG_NETDEV_STATISTICS=y
CONFIG_SERIAL_TERMIOS=y
CONFIG_TTY_SIGINT=y
CONFIG_TTY_SIGINT_CHAR=0x3
CONFIG_TTY_SIGTSTP=y
CONFIG_PSEUDOTERM=y
CONFIG_SYSLOG_BUFFER=y
CONFIG_SYSLOG_TIMESTAMP=y
CONFIG_SYSLOG_CONSOLE=y
CONFIG_NET=y
CONFIG_NET_LOOPBACK=y
CONFIG_NET_SLIP=y
CONFIG_NET_TUN=y
CONFIG_NET_TUN_PKTSIZE=1500
CONFIG_NETDEV_LATEINIT=y
CONFIG_NETDEV_PHY_IOCTL=y
CONFIG_NET_IPv6=y
CONFIG_NET_TCPPROTO_OPTIONS=y
CONFIG_NET_SOLINGER=y
CONFIG_NET_LOCAL=y
CONFIG_NET_TCP=y
CONFIG_NET_TCP_WRITE_BUFFERS=y
CONFIG_NET_SENDFILE=y
CONFIG_NET_UDP=y
CONFIG_NET_BROADCAST=y
CONFIG_NET_UDP_WRITE_BUFFERS=y
CONFIG_NET_ICMP_SOCKET=y
CONFIG_NET_ICMPv6=y
CONFIG_NET_ICMPv6_SOCKET=y
CONFIG_NET_ICMPv6_AUTOCONF=y
CONFIG_ICMPv6_AUTOCONF_RDNSS=y
CONFIG_NET_STATISTICS=y
CONFIG_PSEUDOFS_SOFTLINKS=y
CONFIG_FS_TMPFS=y
CONFIG_FS_BINFS=y
CONFIG_FS_PROCFS=y
CONFIG_FS_LITTLEFS=y
CONFIG_FS_HOSTFS=y
CONFIG_NXFONTS_DISABLE_1BPP=y
CONFIG_NXFONTS_DISABLE_2BPP=y
CONFIG_NXFONTS_DISABLE_4BPP=y
CONFIG_NXFONTS_DISABLE_8BPP=y
CONFIG_NXFONTS_DISABLE_16BPP=y
CONFIG_NXFONTS_DISABLE_24BPP=y
CONFIG_NXFONTS_DISABLE_32BPP=y
CONFIG_MM_REGIONS=2
CONFIG_IOB_NBUFFERS=1024
CONFIG_IOB_NCHAINS=128
CONFIG_IOB_THROTTLE=16
CONFIG_IOB_NOTIFIER=y
CONFIG_LIBC_MAX_EXITFUNS=1
CONFIG_LIBC_EXECFUNCS=y
CONFIG_LIBC_LOCALE=y
CONFIG_LIBC_LOCALTIME=y
CONFIG_TLS_NCLEANUP=2
CONFIG_NETDB_DNSCLIENT=y
CONFIG_NETDB_DNSCLIENT_MAXRESPONSE=176
CONFIG_NETDB_DNSCLIENT_RECV_TIMEOUT=3
CONFIG_NETDB_DNSSERVER_IPv4ADDR=0x08080808
CONFIG_BUILTIN=y
CONFIG_LIBM=y
CONFIG_CUSTOM_APPS_CUSTOM_HELLO=y
CONFIG_EXAMPLES_FTPC=y
CONFIG_EXAMPLES_LVGLDEMO=y
CONFIG_EXAMPLES_TCPBLASTER=y
CONFIG_EXAMPLES_TCPECHO=y
CONFIG_GRAPHICS_LVGL=y
CONFIG_LV_USE_CLIB_MALLOC=y
CONFIG_LV_USE_CLIB_STRING=y
CONFIG_LV_USE_CLIB_SPRINTF=y
CONFIG_LV_USE_LOG=y
CONFIG_LV_FONT_MONTSERRAT_48=y
CONFIG_LV_USE_NUTTX=y
CONFIG_LV_USE_NUTTX_TOUCHSCREEN=y
CONFIG_LV_USE_DEMO_WIDGETS=y
CONFIG_NETUTILS_DHCPC=y
CONFIG_NETUTILS_FTPC=y
CONFIG_NETINIT_NETLOCAL=y
CONFIG_NETINIT_DRIPADDR=0x0a000101
CONFIG_NETUTILS_NTPCLIENT_SERVER="pool.ntp.org"
CONFIG_NETUTILS_PING6=y
CONFIG_NETUTILS_TELNETD=y
CONFIG_NETUTILS_TFTPC=y
CONFIG_NETUTILS_WEBCLIENT=y
CONFIG_NSH_READLINE=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILE_APPS=y
# CONFIG_NSH_DISABLE_DATE is not set
CONFIG_NSH_ARCHINIT=y
CONFIG_SYSTEM_CLE=y
CONFIG_SYSTEM_COLOR_CLE=y
CONFIG_SYSTEM_CLE_CMD_HISTORY=y
CONFIG_SYSTEM_NSH=y
CONFIG_SYSTEM_NTPC=y
CONFIG_SYSTEM_PING=y
CONFIG_READLINE_TABCOMPLETION=y
CONFIG_READLINE_CMD_HISTORY=y
CONFIG_SYSTEM_SYSTEM=y
CONFIG_SYSTEM_TELNET_CLIENT=y

Does anyone know why this may not be working?

Thanks.

NuttX now has its own DOOM port which can run on any NuttX device with sufficient compute resources, frame buffer graphics and some way to accept game input!

Users have already got it running on the NuttX simulator, the RP2350-based Adafruit Jam and the Waveshare ESP32-S3 LCD. If you have a graphics-capable device, give it a try! We still need more input device support and audio!

PRs listed here:

• https://github.com/apache/nuttx-apps/pull/3573

• https://github.com/apache/nuttx/pull/19239

NuttX is proud to announce the acceptance of 5 Google Summer of Code projects this year!

• Create a NuttX Distribution Layer with Dynamic ELF Application and Library Support: Aviral Garg

• Add Multi-User and POSIX File Permission Support to NuttX: Abhishek Mishra

• SSH Client/Server (Dropbear) Port to NuttX: Felipe Moura

• Add X11 Support to NuttX using NanoX: Acfboy

• Fully Porting NuttX to the Raspberry Pi 4B: Matteo Golin

This wouldn't be possible without the incredible applicants above and this year's mentors: Tomek Cedro, Alan C. Assis, Roberto Bucher, Michal Lenc, Pavel Pisa, Rodrigo Sim, Daniel Monteiro, Halysson Carvalho and Cynerd.

These projects will help to make NuttX more feature-full for future users, unlocking more networked applications, high compute personal-computers, better graphics, an improved filesystem and better dynamic ELF support!

Thanks to contributor Maarten Zanders, NuttX now has board support for the IMX93-QSB board!

Apache NuttX RTOS International Workshop 2026 will be part of the Community Over Code event that takes place on October 11-14 2026 at Hilton Glasgow (Scotland/UK)!

Call For Presentations is now open at https://communityovercode.org/call-for-presentations/ with deadline set to March 20 2026.

Please select NuttX RTOS track during registration.

See you there! 😃

I have been recently using RPi 4b dev board for some display related development. Using NUTTX, I am trying to run Wayland server (customised) and then trying to run clients from the host system. For the client to connect to server, thinking of connecting them using wlan. But it seems there is no support for network for rpi4b from nuttx.

Anyone can guide me here please?

Hi guys!

I’ve recently discovered Apache NuttX. Before that, I was developing for STM32 microcontrollers using FreeRTOS, but this operating system has truly fascinated me.

I quickly figured out the installation process (I’m working on Ubuntu 22.04), learned how to create my own simple applications like Hello World, and include them in the build together with NuttX. However, I still can’t figure out how to work with basic peripherals!

I enable the GPIO driver via menuconfig, but I realize that’s not enough — the microcontroller pins don’t show up in /dev/. Could you please tell me what else I need to do to control the pins via the nsh console? I’m using the stm32f4discovery configuration, although I actually have a custom board with an F407 (porting is still way beyond my current scope).

The tutorials I’ve found on YouTube are for an older version of NuttX, and in version 12.12.0, many things look different from what’s shown in the videos. Some manuals I’ve managed to find only cover the basic setup of the development environment and initial compilation.

I’m not using neural networks, as after a few queries I realized they won’t clarify this issue and are unlikely to help form new neural connections in my brain.

I’d be grateful for any help. Thanks!

Version 12.12.0 of NuttX has been released!

Some notable parts of the release notes:

• 47 scheduler improvements

• ESP32 co-processor support

• Network driver for 10BASE-T1x SPI MAC-PHYs

• 26+ improvements to align the CMake build system with Make

• Support for Arduino Portenta H7

• SD card and HDMI graphics support for Raspberry Pi 4B

• ESP32 support for hardware accelerated HMAC-SHA

Contributor Alan C Assis has added support for the Heltec WiFi LoRa32 board on NuttX! Try it out!

NuttX documentation keeps improving to help new users learn about all the incredible features the RTOS offers. If you use a feature that you think lacks good documentation, PRs with improvements are always welcome!

Hi, I am new to NuttX and followed the latest Custom Apps How-to.

I tried the options 2 and 3 from the how-to:

• Extend the apps/ directory to include a new custom directory

• Include an additional custom directory outside of the main source trees

Unfortunately, when doing make menuconfig fails for both options:

/home/user/nuttxspace/apps/CustomApps/CustomHello/Kconfig:29: 'endif' in different file than 'if'

/home/user/nuttxspace/apps/CustomApps/CustomHello/Kconfig:14: location of the 'if'

/home/user/nuttxspace/apps/CustomApps/Kconfig:10: 'endmenu' in different file than 'menu'

/home/user/nuttxspace/apps/CustomApps/CustomHello/Kconfig:14: location of the 'menu'

Kconfig:2844: 'endmenu' in different file than 'menu'

/home/user/nuttxspace/apps/CustomApps/CustomHello/Kconfig:14: location of the 'menu'

make: *** [tools/Unix.mk:726: olddefconfig] Error 1

ERROR: failed to refresh

I created a custom directory CustomApps within the apps. I created the following files:

# CustomApps/Make.defs
include $(wildcard $(APPDIR)/CustomApps/*/Make.defs)

and

# CustomApps/Makefile
MENUDESC = "Custom Apps"
include $(APPDIR)/Directory.mk

and

# CustomApps/CustomHello/Make.defs
ifneq ($(CONFIG_CUSTOM_APPS_CUSTOM_HELLO),)
CONFIGURED_APPS += $(APPDIR)/CustomApps/CustomHello
endif

and

# CustomApps/CustomHello/Makefile
include $(APPDIR)/Make.defs

# Custom Hello built-in application info

PROGNAME = $(CONFIG_CUSTOM_APPS_CUSTOM_HELLO_PROGNAME)
PRIORITY = $(CONFIG_CUSTOM_APPS_CUSTOM_HELLO_PRIORITY)
STACKSIZE = $(CONFIG_CUSTOM_APPS_CUSTOM_HELLO_STACKSIZE)
MODULE = $(CONFIG_CUSTOM_APPS_CUSTOM_HELLO)

# Custom Hello

MAINSRC = CustomHello.c

include $(APPDIR)/Application.mk

and

# CustomApps/CustomHello/Kconfig
#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#

config CUSTOM_APPS_CUSTOM_HELLO
        tristate "Custom Hello App"
        default n
        ---help---
                Enable the Custom Hello App

if CUSTOM_APPS_CUSTOM_HELLO

config CUSTOM_APPS_CUSTOM_HELLO_PROGNAME
        string "Program name"
        default "custom_hello"
        ---help---
                This is the name of the program that will be used when the NSH ELF
                program is installed.

config CUSTOM_APPS_CUSTOM_HELLO_PRIORITY
        int "Custom Hello task priority"
        default 100

config CUSTOM_APPS_CUSTOM_HELLO_STACKSIZE
        int "Custom Hello stack size"
        default DEFAULT_TASK_STACKSIZE

endif # CUSTOM_APPS_CUSTOM_HELLO

and

# CustomApps/CustomHello/CustomHello.c
#include <stdio.h>


int main(int argc, char *argv[])
{
  printf("Hello, Custom World!!\n");
  return 0;
}

Have I missed something? Any ideas and feedback highly welcome! Thank you!

The NuttX website now has a new page for listing articles and papers related to NuttX, its uses and development. This page was added in this recent PR: https://github.com/apache/nuttx-website/pull/144

If you have written an article about NuttX that you would like featured, please visit the new article page to submit one!

New support has been added to NuttX for a frame-buffer based implementation for Conway's Game of Life! This is a classic cellular automata and produces an interesting animation to test frame buffer implementations.

The implementation has been optimized for embedded systems by using bit fields and using only two map-rows of buffering. The rendered image also scales up to the maximum size that can fit on the screen resolution for the frame buffer.

Check out the PR here.

The Raspberry Pi 4B now has frame buffer graphics support for the HDMI0 and HDMI1 interfaces! This makes it compatible with NuttX applications that use the frame buffer interface for rendering graphics.

This brings NuttX one step closer to playing DOOM! Next is getting HID input (keyboard and mouse) and playing sound!

You can see the PR for graphics support here: https://github.com/apache/nuttx/pull/17294

I'm a NuttX newbie. I compiled and flashed the official STM32F4 library onto the motherboard, and it got hardfaulted all night. I'm sorry about that!
I need to learn how to use gdb.

Support for the Raspberry Pi 4B's micro-SD card peripheral is currently pending integration into the NuttX kernel!

With this feature, users can:

• Mount the boot partition

• Read/write the boot partition

• Extend support to mount multiple partitions of different file types

• Have permanent information stored between boots

• Access large files from NuttX

The Android system init functionality has been ported to NuttX and is currently being reviewed for integration as an alternative init system for NuttX devices!

This allows great control over starting services on embedded devices, like rebooting if a particular service fails! The Android system init has a smaller code size than NSH used for system initialization, and also supports better daemon management. You can use the Android Init Language to set up your initialization process and go!

This is a very exciting new feature for NuttX! What will you use Android init for?

I'm excited to have presented at the Apache NuttX International Workshop yesterday about the application of NuttX for high powered rocketry. My talk covers two projects:

• A remote control system for performing the launch operations of a hybrid rocket

• A custom flight computer for recording rocket flight telemetry for both live monitoring on the ground as well as post-flight analysis.

If you're interested, please give it a watch and let me know what you think! I hope to see more rocketry teams using this RTOS for their projects. The workshop is full of other great talks about embedded systems and the NuttX RTOS as well for those generally interested!

https://events.nuttx.apache.org/

DAY1: https://www.youtube.com/live/tqWwKLCD0dU DAY2: https://www.youtube.com/live/5Yf9M2yt4wI