Ubuntu 20.04 LTS Is Now Powered by Linux Kernel 5.15 LTS from Ubuntu 22.04 LTS On August 2nd, 2022, Canonical published a new Ubuntu kernel security updates for Ubuntu 22.04 LTS and Ubuntu 20.04 LTS systems that address four security vulnerabilities, including a remote code execution. The interesting part is that Canonical lists only Linux 5.15 kernels for both Ubuntu 22.04 LTS and Ubuntu 20.04 LTS as being patched, despite the fact that Ubuntu 20.04 LTS runs Linux kernel 5.13 since the release of the Ubuntu 20.04.4 LTS point release back in February 2022. Games: Steam Deck, Nintendo Online, and More Steam Deck Beta update brings bug fixes, external display improvement Valve has released a small update to the Steam Deck Beta branch, mostly bug fixes but also an improvement for handling external displays. Here's what's new. Stealth-action game Republique is now FREE and Steam Deck Verified Consider this your quick tip of the week, as Republique from developer Camouflaj is now free to keep on Steam and it's also Steam Deck Verified! The developer has reached their 10 year anniversary as a studio, so they've put Republique free as it was their first game. A nice little gesture. No need to wait on Valve, the Steam Deck Docking Station from JSAUX is great While many will no doubt wait on Valve for the official Steam Deck Dock, a lot of hardware vendors are coming out with their own versions. JSAUX are one of them and they sent over their Docking Station for Steam Deck for me to take a look at. Steam gets support for Nintendo Online classic controllers Valve recently released an update for the main Steam client, which amongst other things brings support in Steam Input for the Nintendo Online classic controllers. These are the special controllers Nintendo offers for playing their classics on Nintendo Switch, although Steam having support for them makes sure they have a whole lot more life. The GNU C Library version 2.36 is now availableThe GNU C Library ================= The GNU C Library version 2.36 is now available. The GNU C Library is used as the C library in the GNU system and in GNU/Linux systems, as well as many other systems that use Linux as the kernel. The GNU C Library is primarily designed to be a portable and high performance C library. It follows all relevant standards including ISO C11 and POSIX.1-2017. It is also internationalized and has one of the most complete internationalization interfaces known. The GNU C Library webpage is at http://www.gnu.org/software/libc/ Packages for the 2.36 release may be downloaded from: http://ftpmirror.gnu.org/libc/http://ftp.gnu.org/gnu/libc/ The mirror list is at http://www.gnu.org/order/ftp.html NEWS for version 2.36 ===================== Major new features: Support for DT_RELR relative relocation format has been added to glibc. This is a new ELF dynamic tag that improves the size of relative relocations in shared object files and position independent executables (PIE). DT_RELR generation requires linker support for -z pack-relative-relocs option, which is supported for some targets in recent binutils versions. Lazy binding doesn't apply to DT_RELR. On Linux, the pidfd_open, pidfd_getfd, and pidfd_send_signal functions have been added. The pidfd functionality provides access to a process while avoiding the issue of PID reuse on tranditional Unix systems. On Linux, the process_madvise function has been added. It has the same functionality as madvise but alters the target process identified by the pidfd. On Linux, the process_mrelease function has been added. It allows a caller to release the memory of a dying process. The release of the memory is carried out in the context of the caller, using the caller's CPU affinity, and priority with CPU usage accounted to the caller. The “no-aaaa” DNS stub resolver option has been added. System administrators can use it to suppress AAAA queries made by the stub resolver, including AAAA lookups triggered by NSS-based interfaces such as getaddrinfo. Only DNS lookups are affected: IPv6 data in /etc/hosts is still used, getaddrinfo with AI_PASSIVE will still produce IPv6 addresses, and configured IPv6 name servers are still used. To produce correct Name Error (NXDOMAIN) results, AAAA queries are translated to A queries. The new resolver option is intended primarily for diagnostic purposes, to rule out that AAAA DNS queries have adverse impact. It is incompatible with EDNS0 usage and DNSSEC validation by applications. On Linux, the fsopen, fsmount, move_mount, fsconfig, fspick, open_tree, and mount_setattr have been added. They are part of the new Linux kernel mount APIs that allow applications to more flexibly configure and operate on filesystem mounts. The new mount APIs are specifically designed to work with namespaces. localedef now accepts locale definition files encoded in UTF-8. Previously, input bytes not within the ASCII range resulted in unpredictable output. Support for the mbrtoc8 and c8rtomb multibyte/UTF-8 character conversion functions has been added per the ISO C2X N2653 and C++20 P0482R6 proposals. Support for the char8_t typedef has been added per the ISO C2X N2653 proposal. The functions are declared in uchar.h in C2X mode or when the _GNU_SOURCE macro or C++20 __cpp_char8_t feature test macro is defined. The char8_t typedef is declared in uchar.h in C2X mode or when the _GNU_SOURCE macro is defined and the C++20 __cpp_char8_t feature test macro is not defined (if __cpp_char8_t is defined, then char8_t is a builtin type). The functions arc4random, arc4random_buf, and arc4random_uniform have been added. The functions wrap getrandom and/or /dev/urandom to return high- quality randomness from the kernel. Support for LoongArch running on Linux has been added. This port requires as least binutils 2.38, GCC 12, and Linux 5.19. Currently only hard-float ABI is supported: - loongarch64-linux-gnu The LoongArch ABI is 64-bit little-endian. Deprecated and removed features, and other changes affecting compatibility: Support for prelink will be removed in the next release; this includes removal of the LD_TRACE_PRELINKING, and LD_USE_LOAD_BIAS, environment variables and their functionality in the dynamic loader. The Linux kernel version check has been removed along with the LD_ASSUME_KERNEL environment variable. The minimum kernel used to built glibc is still provided through NT_GNU_ABI_TAG ELF note and also printed when libc.so is issued directly. On Linux, The LD_LIBRARY_VERSION environment variable has been removed. The following bugs are resolved with this release: [14932] dynamic-link: dlsym(handle, "foo") and dlsym(RTLD_NEXT, "foo") return different result with versioned "foo" [16355] libc: syslog.h's SYSLOG_NAMES namespace violation and utter mess [23293] dynamic-link: aarch64: getauxval is broken when run as ld.so ./exe and ld.so adjusts argv on the stack [24595] nptl: [2.28 Regression]: Deadlock in atfork handler which calls dlclose [25744] locale: mbrtowc with Big5-HKSCS returns 2 instead of 1 when consuming the second byte of certain double byte characters [25812] stdio: Libio vtable protection is sometimes only partially enforced [27054] libc: pthread_atfork handlers that call pthread_atfork deadlock [27924] dynamic-link: ld.so: Support DT_RELR relative relocation format [28128] build: declare_symbol_alias doesn't work for assembly codes [28566] network: getnameinfo with NI_NOFQDN is not thread safe [28752] nss: Segfault in getpwuid when stat fails [28815] libc: realpath should not copy to resolved buffer on error [28828] stdio: fputwc crashes [28838] libc: FAIL: elf/tst-p_align3 [28845] locale: ld-monetary.c should be updated to match ISO C and other standards. [28850] libc: linux: __get_nprocs_sched reads uninitialized memory from the stack [28852] libc: getaddrinfo leaks memory with AI_ALL [28853] libc: tst-spawn6 changes current foreground process group (breaks test isolation) [28857] libc: FAIL: elf/tst-audit24a [28860] build: --enable-kernel=5.1.0 build fails because of missing __convert_scm_timestamps [28865] libc: linux: _SC_NPROCESSORS_CONF and _SC_NPROCESSORS_ONLN are inaccurate without /sys and /proc [28868] dynamic-link: Dynamic loader DFS algorithm segfaults on missing libraries [28880] libc: Program crashes if date beyone 2038 [28883] libc: sysdeps/unix/sysv/linux/select.c: __select64 !__ASSUME_TIME64_SYSCALLS && !__ASSUME_PSELECT fails on Microblaze [28896] string: strncmp-avx2-rtm and wcsncmp-avx2-rtm fallback on non- rtm variants when avoiding overflow [28922] build: The .d dependency files aren't always generated [28931] libc: hosts lookup broken for SUCCESS=CONTINUE and SUCCESS=MERGE [28936] build: nm: No such file [28950] localedata: Add locale for ISO code "tok" (Toki Pona) [28953] nss: NSS lookup result can be incorrect if function lookup clobbers errno [28970] math: benchtest: libmvec benchmark doesn't build with make bench. [28991] libc: sysconf(_SC_NPROCESSORS_CONF) should read /sys/devices/system/cpu/possible [28993] libc: closefrom() iterates until max int if no access to /proc/self/fd/ [28996] libc: realpath fails to copy partial result to resolved buffer on ENOENT and EACCES [29027] math: [ia64] fabs fails with sNAN input [29029] nptl: poll() spuriously returns EINTR during thread cancellation and with cancellation disabled [29030] string: GLIBC 2.35 regression - Fortify crash on certain valid uses of mbsrtowcs (*** buffer overflow detected ***: terminated) [29062] dynamic-link: Memory leak in _dl_find_object_update if object is promoted to global scope [29069] libc: fstatat64_time64_statx wrapper broken on MIPS N32 with -D_FILE_OFFSET_BITS=64 and -D_TIME_BITS=64 [29071] dynamic-link: m68k: Removal of ELF_DURING_STARTUP optimization broke ld.so [29097] time: fchmodat does not handle 64 bit time_t for AT_SYMLINK_NOFOLLOW [29109] libc: posix_spawn() always returns 1 (EPERM) on clone() failure [29141] libc: _FORTIFY_SOURCE=3 fail for gcc 12/glibc 2.35 [29162] string: [PATCH] string.h syntactic error: include/bits/string_fortified.h:110: error: expected ',' or ';' before '__fortified_attr_access' [29165] libc: [Regression] broken argv adjustment [29187] dynamic-link: [regression] broken argv adjustment for nios2 [29193] math: sincos produces a different output than sin/cos [29197] string: __strncpy_power9() uses uninitialised register vs18 value for filling after \0 [29203] libc: daemon is not y2038 aware [29204] libc: getusershell is not 2038 aware [29207] libc: posix_fallocate fallback implementation is not y2038 aware [29208] libc: fpathconf(_PC_ASYNC_IO) is not y2038 aware [29209] libc: isfdtype is not y2038 aware [29210] network: ruserpass is not y2038 aware [29211] libc: __open_catalog is not y2038 aware [29213] libc: gconv_parseconfdir is not y2038 aware [29214] nptl: pthread_setcanceltype fails to set type [29225] network: Mistyped define statement in socket/sys/socket.h in line 184 [29274] nptl: __read_chk is not a cancellation point [29279] libc: undefined reference to `mbstowcs_chk' after 464d189b9622932a75302290625de84931656ec0 [29304] libc: mq_timedreceive does not handle 64 bit syscall return correct for !__ASSUME_TIME64_SYSCALLS [29403] libc: st_atim, st_mtim, st_ctim stat struct members are missing on microblaze with largefile Release Notes ============= https://sourceware.org/glibc/wiki/Release/2.36 Contributors ============ This release was made possible by the contributions of many people. The maintainers are grateful to everyone who has contributed changes or bug reports. These include: =Joshua Kinard Adhemerval Zanella Adhemerval Zanella Netto Alan Modra Andreas Schwab Arjun Shankar Arnout Vandecappelle (Essensium/Mind) Carlos O'Donell Cristian Rodríguez DJ Delorie Danila Kutenin Darius Rad Dmitriy Fedchenko Dmitry V. Levin Emil Soleyman-Zomalan Fangrui Song Florian Weimer Gleb Fotengauer-Malinovskiy Guilherme Janczak H.J. Lu Ilyahoo Proshel Jason A. Donenfeld Joan Bruguera John David Anglin Jonathan Wakely Joseph Myers José Bollo Kito Cheng Maciej W. Rozycki Mark Wielaard Matheus Castanho Max Gautier Michael Hudson-Doyle Nicholas Guriev Noah Goldstein Paul E. Murphy Raghuveer Devulapalli Ricardo Bittencourt Sam James Samuel Thibault Sergei Trofimovich Siddhesh Poyarekar Stafford Horne Stefan Liebler Steve Grubb Su Lifan Sunil K Pandey Szabolcs Nagy Tejas Belagod Tom Coldrick Tom Honermann Tulio Magno Quites Machado Filho WANG Xuerui Wangyang Guo Wilco Dijkstra Xi Ruoyao Xiaoming Ni Yang Yanchao caiyinyu Read on
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Takeoff projects help students complete their academic projects. Register at takeoff projects today to find and learn about different interesting big data projects and grab the best jobs. Get started right now.
Banana Pi BPI-R4 Pro router board upgrades to 8GB RAM, dual 10GbE, WiFi 7, and rich M.2 expansion for high-speed router and NAS applications. The post Banana Pi BPI-R4 Pro router board adds 10GbE ports, WiFi 7, and 8GB RAM appeared first on Electronics-Lab.
How to Read Capacitor Voltage Codes Easily! #Shorts
Description "Confused by the codes on capacitors like 0J, 1A, 2E, or 2J? This short video explains how to quickly decode standard voltage markings and choose the right capacitor for your electronics projects. Learn the importance of correct voltage ratings to avoid damage and improve circuit reliability. Watch, learn, and share for safe and smart electronics!
In this video i talk about my latest project, the PV PI! A Raspberry Pi HAT that can power your Raspberry Pi from a 12V LiFePO4 battery which charging it from the sun!
No te pierdas la revisión de este impresionante kit de Raspberry, en mi canal de YouTube 'Bernardo Tutoriales' (enlace en la BIO o busca en YouTube el canal 'Bernardo Tutoriales'). Si no estás suscrito aprovecha para suscribirte, ya que tenemos infinidad de vídeos relacionados con robótica, tecnología, electrónica, programación, Arduino, diseño3D, etc., etc.
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Bài này mình sẽ nói về - Sơ lược về Lý thuyết của Yocto Project, - Cách clone source code poky và các meta layer cần thiết - Sửa file cấu hình bblayer.conf, local.conf - Build và test image trên Board
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In this video, I build an OTP-based door lock system using Arduino and a GSM module. This smart lock project sends an SMS alert and enhances home security with a one-time password verification feature.
Component List ******************************* Arduino Nano 16x2 LCD Display I2C Module Sim800l GSM Module 5v Relay Module 4x4 Keypad Buzzer Zero PCB USB Cable *******************************
Project Buy Link ************************************************* Ready To Go Kit :- https://rzp.io/rzp/Lnqs3vik *************************************************
How can I use the PN532 with an ESP32-Wroom-32? Ask Question Asked today Modified today Viewed 7 times 0 The ESP32 cant find the NFC module (Pn532). I used the I2C and SPI without any promising results. I used the Example code and edited the Pins Every time I only Get this result: Serial.print("Didn't find PN53x board"); #include <Wire.h> #include <SPI.h> #include <Adafruit_PN532.h> // If using the breakout with SPI, define the pins for SPI communication. #define PN532_SCK (16) #define PN532_MOSI (25) #define PN532_SS (17) #define PN532_MISO (26) // Uncomment just _one_ line below depending on how your breakout or shield // is connected to the Arduino: // Use this line for a breakout with a software SPI connection (recommended): Adafruit_PN532 nfc(16, 26, 25, 17); // Use this line for a breakout with a hardware SPI connection. Note that // the PN532 SCK, MOSI, and MISO pins need to be connected to the Arduino's // hardware SPI SCK, MOSI, and MISO pins. On an Arduino Uno these are // SCK = 13, MOSI = 11, MISO = 12. The SS line can be any digital IO pin. //Adafruit_PN532 nfc(PN532_SS); // Or use this line for a breakout or shield with an I2C connection: //Adafruit_PN532 nfc(PN532_IRQ, PN532_RESET); // Or use hardware Serial: //Adafruit_PN532 nfc(PN532_RESET, &Serial1); void setup(void) { Serial.begin(115200); while (!Serial) delay(10); // for Leonardo/Micro/Zero Serial.println("Hello!"); nfc.begin(); delay(1000); uint32_t versiondata = nfc.getFirmwareVersion(); if (! versiondata) { Serial.print("Didn't find PN53x board"); while (1); // halt } // Got ok data, print it out! Serial.print("Found chip PN5"); Serial.println((versiondata>>24) & 0xFF, HEX); Serial.print("Firmware ver. "); Serial.print((versiondata>>16) & 0xFF, DEC); Serial.print('.'); Serial.println((versiondata>>8) & 0xFF, DEC); Serial.println("Waiting for an ISO14443A Card ..."); } void loop(void) { uint8_t success; uint8_t uid[] = { 0, 0, 0, 0, 0, 0, 0 }; // Buffer to store the returned UID uint8_t uidLength; // Length of the UID (4 or 7 bytes depending on ISO14443A card type) // Wait for an ISO14443A type cards (Mifare, etc.). When one is found // 'uid' will be populated with the UID, and uidLength will indicate // if the uid is 4 bytes (Mifare Classic) or 7 bytes (Mifare Ultralight) success = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, uid, &uidLength); if (success) { // Display some basic information about the card Serial.println("Found an ISO14443A card"); Serial.print(" UID Length: ");Serial.print(uidLength, DEC);Serial.println(" bytes"); Serial.print(" UID Value: "); nfc.PrintHex(uid, uidLength); Serial.println(""); if (uidLength == 4) { // We probably have a Mifare Classic card ... Serial.println("Seems to be a Mifare Classic card (4 byte UID)"); // Now we need to try to authenticate it for read/write access // Try with the factory default KeyA: 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF Serial.println("Trying to authenticate block 4 with default KEYA value"); uint8_t keya[6] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; // Start with block 4 (the first block of sector 1) since sector 0 // contains the manufacturer data and it's probably better just // to leave it alone unless you know what you're doing success = nfc.mifareclassic_AuthenticateBlock(uid, uidLength, 4, 0, keya); if (success) { Serial.println("Sector 1 (Blocks 4..7) has been authenticated"); uint8_t data[16]; // If you want to write something to block 4 to test with, uncomment // the following line and this text should be read back in a minute //memcpy(data, (const uint8_t[]){ 'a', 'd', 'a', 'f', 'r', 'u', 'i', 't', '.', 'c', 'o', 'm', 0, 0, 0, 0 }, sizeof data); // success = nfc.mifareclassic_WriteDataBlock (4, data); // Try to read the contents of block 4 success = nfc.mifareclassic_ReadDataBlock(4, data); if (success) { // Data seems to have been read ... spit it out Serial.println("Reading Block 4:"); nfc.PrintHexChar(data, 16); Serial.println(""); // Wait a bit before reading the card again delay(1000); } else { Serial.println("Ooops ... unable to read the requested block. Try another key?"); } } else { Serial.println("Ooops ... authentication failed: Try another key?"); } } if (uidLength == 7) { // We probably have a Mifare Ultralight card ... Serial.println("Seems to be a Mifare Ultralight tag (7 byte UID)"); // Try to read the first general-purpose user page (#4) Serial.println("Reading page 4"); uint8_t data[32]; success = nfc.mifareultralight_ReadPage (4, data); if (success) { // Data seems to have been read ... spit it out nfc.PrintHexChar(data, 4); Serial.println(""); // Wait a bit before reading the card again delay(1000); } else { Serial.println("Ooops ... unable to read the requested page!?"); } } } } I tried SPI and I2C and different Pins arduinoesp32roboticspn532 Share Improve this question Follow asked 11 mins ago Moritz Ende 1 New contributor Moritz Ende is a new contributor to this site. Take care in asking for clarification, commenting, and answering. Check out our Code of Conduct. Add a comment Know someone who can answer? Share a link to this question via email, Twitter, or Facebook. Start asking to get answers Find the answer to your question by asking. Ask question Explore related questions arduinoesp32roboticspn532 See similar questions with these tags. <div></div>
Discover 4 powerful single-board computers that outshine the Raspberry Pi in performance, features, and value. From Radxa X4 to Orange Pi 5 Pro, these alternatives offer superior specs and capabilities for demanding projects.
UmbrelOS est un système open source qui permet de transformer un simple ordinateur ou Raspberry Pi en serveur personnel.Idéal pour l’auto-hébergement, il...
In this project, we create an RFID Based Smart Shopping Cart using Arduino UNO, RFID module, and push buttons for adding or removing items. When an item’s RFID tag is scanned, it’s automatically added to the cart’s list. You can also remove items by pressing the “Remove” button. The total bill updates instantly on the LCD display.
This project reduces queue time at billing counters and enhances the shopping experience through automation and IoT-based innovation.
🔧 Components Used:
Arduino UNO
RFID RC522 Module
LCD Display (16x2 or I2C)
Push Buttons (Add / Remove)
Buzzer
Power Supply
💡 Features: ✅ Add or remove products using RFID and buttons ✅ Real-time price update on display ✅ Simple and low-cost prototype ✅ Ideal for IoT & automation beginners
Raspberry Pi5 8GB Laptop, Raspberry pi 5 MIni PC Computer,2.4GHz 64-bit Quad-core Arm Cortex-A76, Bluetooth5.0,BLE Wireless Buy on ✅https://s.click.aliexpress.com/e/_c4VBEEjz ========================================================== Scrolling for smart buys? Stop here, your cart will thank you.
New Arrival Raspberry Pi5 8GB Laptop, Raspberry pi 5 MIni PC Computer,2.4GHz 64-bit Quad-core Arm Cortex-A76, Bluetooth5.0,BLE Wireless Editor’s Choice Raspberry Pi5 8GB Laptop, Raspberry pi 5 MIni PC Computer,2.4GHz 64-bit Quad-core Arm Cortex-A76, Bluetooth5.0,BLE Wireless Get Raspberry Pi5 8GB Laptop, Raspberry pi 5 MIni PC Computer,2.4GHz 64-bit Quad-core Arm Cortex-A76, Bluetooth5.0,BLE Wireless
Mix of budget and banger picks—perfect for quick decision-makers. Minimal fluff, maximum value—curated with love (and coffee).
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No cap, these are the type of products you keep using.
Disclaimer: - Shop smart, stay safe, and when in doubt, ask a pro. - This video is for informational purposes only—always follow the manufacturer’s instructions. - We’re not responsible for product usage outcomes; read manuals and install wisely.
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Discover how this compact computer is reshaping innovation and DIY tech with real-world applications:
Ad-Free Browsing – Set up Pi-hole to block ads across all devices Secure Networking – Use PiVPN for protected, private connections Smart Home Control – Automate lighting, security, and appliances with ease Perfect for Learning – Ideal for exploring coding, electronics, and prototyping
Affordable, open-source, and backed by a massive global community, Raspberry Pi gives creators the freedom to build, learn, and innovate without limits.
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I built a Truth or Dare machine on a Raspberry Pi — in just 4 days. A 40-inch touchscreen, phone voting, and a few too many questionable design choices.
In this episode, I show how I built and programmed the Truth or Dare arcade cabinet for my Halloween setup, connected to my central Meatcorps Arcade system.
Built with: – Raspberry Pi 4 (Debian 12, Chromium in kiosk mode) – C# WebServer + Blazor frontend – 40-inch touchscreen (AliExpress IR frame) – MQTT communication with the arcade core
What’s inside: 0:00 Intro & Monstrosity reveal 0:27 The game loop & Game Design 4:13 Hardware build & Touchscreen 6:02 Community - Haunted cabinet update! 7:20 Touchscreen chaos 11:30 Halloween arcade updates
Would you dare to play this one, or build your own?
ADLINK OSM-IMX95 is an OSM Size-L solder-on system-on-module powered by an NXP i.MX 95 hexa-core Arm Cortex-A55 SoC with an up to 2 TOPS eIQ Neutron...
Mes de Octubre del 2025, Qualcom compra Arduino, dicen que se mantendran con su autonomia y libertad para los "Makers" y ya tienen un Producto en conjunto Arduino UNO Q.
Un nuevo experimento promete cambiar la forma en que entendemos la calefacción doméstica: convertir el calor generado por la computación en una fuente de energía limpia y barata para los hogares...
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