Raspberry pi 5 io pins. Further it must be set to ALT FUN 5 to get PWM output.


xyz - or type pinout at the command line) are variable 3V3 - you can configure them. I found a 16bit io expander which has 8 unique addresses for 128 but that's the max I can do on i2c. To control a 5V supply with a GPIO pin, use a transistor. The Raspberry Pi 4 board has a GPIO header with 40 pins. That’s too bad, because with a little bit of work, the Raspberry Pi can make a powerful physical computing Known Issues. All of the Pi 5 pin IO is now located in gpiochip4 instead of gpiochip0. com Raspberry Pi 5 aspberr Pi td 3 Jun 26, 2019 · Raspberry Pi 4 Model B Rev 1. These pins can send or receive electrical signals, but they aren't designed for any specific purpose. cleanup method. Feb 9, 2021 · But can you give me an advice which combination is best, if I want to use at least one DSI (TouchTFT) When I look at the Design of given CM4-IO-Carrier-Board I do not understand under which circumstances they use the I2C-RTC. They are designed to be supported on the Raspberry Pi using the supplied circuit board standoffs and screws. Some of the interface libraries, such as pigpio or wiringPi , support this feature. The Raspberry Pi's GPIO pins are quite versatile, and you can modify many of their characteristics from software. GPIO stands for general-purpose-input/output. 3V to prevent the input pin's voltage rising much above the PI's supply rail. But something odd is going on, if these pins are the actual missing I2S pins then the V2. Raspberry Pi 4 Model B. GPIO Python 1,039,790 toggles per second pi_gpio Python 380,408 toggles per second lgpio Python 176,048 toggles per second gpiod Python 109,536 toggles per second gpiozero Python 30,416 Apr 11, 2022 · Related: What Is the Raspberry Pi? GPIO Is a Set of Pins At the most basic level, GPIO refers to a set of pins on your computer's mainboard or add-on card. New-style revision codes. 2=0. Raspberry Pi boards have 40 pins that you can use them to communicate with other components. Spi Provides access to the 2 Oct 6, 2023 · How many UART ports are exposed at the GPIO header pin? There are 4 UARTs on raspberry pi 4 (excluding console UART). io/mains-io/ Detecting and controlling mains voltages with a Raspberry Pi or Arduino Experiments using a Raspberry Pi and solid state relays (SSRs) to sense the presence of mains electricity and switch loads on/off. No soldering is required on the Raspberry Pi audio boards for normal operation unless you are using hardwired connections for specific connectors such as XLR Nov 26, 2016 · Yes, you can still power the Raspberry Pi 4 from pins on the GPIO header. This GPIO Pinout is an interactive reference to the Raspberry Pi GPIO pins, and a guide to the Raspberry Pi's GPIO interfaces. The Raspberry Pi GPIO pinout guide. Alternatively, we can use systemctl to enable and start the service, such as: sudo systemctl enable ssh then, sudo systemctl startssh. The answer is the pinouts to the Raspberry pi 5 are exactly the same as in the Raspberry Pi 4. I'm using the Pi 3b+, and I've seen estimates for speed varying from . It's a way the Raspberry Pi can control and monitor the outside world by being connected to electronic circuits. Im setting the pins with - pi. The Raspberry Pi 5 is available at a competitive price, considering its impressive specifications and capabilities. Sadly, these are also the only way to talk with the PiPower UPS from your Raspberry Pi. Create a variable called LED_PIN and store the value 17 inside of it. We have included all three main iterations of the Raspberry Pi. Raspberry Pi Zero W. g. Less Chance of Wiring Errors. This is why they're called "general-purpose" IO. However, I still need 34 IOs connecting to 34 inching switches, but a Raspberry has only 27 IOs. Raspberry Pi Zero, 1, 2 and 3. txt has the line "usb_max_current_enable=1" added, and vcgencmd gets the expected response: • Raspberry Pi standard 40-pin header • Real-time clock (RTC), powered from external battery • Power button Production lifetime: Raspberry Pi 5 will remain in production until at least January 2036 Compliance: For a full list of local and regional product approvals, please visit pip. 5 mm pitch cable) Standard Raspberry Pi HAT connectors; Real-time clock with battery socket and ability to wake Compute Module 4; Various jumpers to disable specific features, e. getGpio(), width) obviously width being a number between 1000 and 2000 and the pin (in this case being 7 with the ground pin in pin 9) (raspberry 2 b) Pin assignment of various Raspberry Pi revisions (as of 2013-09, Raspberry Pi model B rev1 and rev2 as well as Raspberry Pi model A, including rev2 P5 connector) Controlled use of resources using a IDisposable component and ability to use edge detection instead of polling; Support sub-millisecond polling of input pins; High-level: This library enables developers to use the various Raspberry Pi's hardware modules: Pi. NOTE The physical pin numbering is shown in Figure 4, for the pin allocation see Figure 2 or the full Raspberry Pi Pico schematics in Appendix B. 3V fan, then you’ll use the first pin on the left column. Info Provides information on this Raspberry Pi's CPU and form factor. There is still 7 IOs short. All Raspberry Pi models released after 2014, such as the Raspberry Pi 3, 4, and newer versions, come equipped with 40 GPIO pins. The Raspberry Pi supports one-wire on all GPIOs, but the default is GPIO4. These are the PCM pins: Din: GPIO 20; Dout: GPIO 21; FS: GPIO 19; CLK: GPIO 18; I2C EEPROM Oct 6, 2023 · Eben 0:00: So we’ve already said that Raspberry Pi 5 is the longest-duration programme that we’ve ever run at Raspberry Pi and it stretches all the way back to 2015, right — it stretches all the way back to, kind of, Raspberry Pi 2 era, just after we launched Raspberry Pi 2. Nov 4, 2023 · To facilitate the dual connectors, the Raspberry Pi 5 uses a high-density 22-pin flat-flex cables instead of the usual 22-pin cable. Output); } // Close pin - will revert to its power-on state } RP1 has 28 multi-functional General-Purpose Input/Output pins available to implement the standard Raspberry Pi 40-pin GPIO connector. This is also the way the Raspberry Pi outputs analog audio. SetDriveMode(GpioPinDriveMode. 3V operation. Pin assignments. ) Pins: 4 & 8 , would go to power pins, with 4 going to either one of the 5v, and pin 8 on a converter-board/ step-down/ thing(?). They are not suitable for use as general purpose IO where a pull-up might interfere. RP-003139-SP - 4 Raspberry Pi Trading LTD Raspberry Pi Trading LTD registered in England and Wales. Using raspi-config to enable ssh. The other side of the switch we connect to 3. If you love Pinout, please help me fund new features and improvements: Dec 20, 2023 · GPIO Pins in a Safe State It is very important for GPIO pins to be set to input whenever your program exists so that there is less of a chance of an accidental short on the GPIO header, which could damage your raspberry Pi. Comments are welcome! Jun 19, 2018 · Figure 1. Connect all SCLK pins together. Physical pins 2 & 4 on the GPIO connector are not controlled/connected to any of the Pi's GPIO's but are directly connected to the Pi's 5V supply rail (after the polyfuse & overvoltage protection circuitry on "non-zero" Pi's). raspberrypi. Further it must be set to ALT FUN 5 to get PWM output. 25-1. But the documentation states that is does have these pins available on the newly added connector P5. Take a look at the Raspberry Pi 4's GPIO header pinout here: May 15, 2019 · The Raspberry Pi has two I2C connections at GPIO 2 and 3 (SDA and SCL) are for I2C0 (master) and physical pins 27 and 28 are I2C pins that enable the Pi to talk to compatible HAT (Hardware Attached on Top) add on boards. Elevate your permissions to root user to allow IO access sudo -i Setup to control pin as output. You can program the Raspberry Pi’s GPIO pins with Thonny, which is the default Python editor that comes with the Raspberry Pi OS. The pin numbering of the Raspberry Pi Pico Rev3 board. On Raspberry Pi models starting with model 3B (including Raspberry Pi Model CM4) the hardware-based serial/UART device /dev/ttyAMA0 has been re-purposed to communicate with the the built-in Bluetooth modem and is no longer mapped to the serial RX/TX pins on the GPIO header. Pi. IO Boards. Old-style revision codes. For example, a weather station, a robot, or an expansion card (named “HAT”). Compute Module 4 IO Board Raspberry Pi 5. If it’s a 3. Jun 11, 2015 · The end with the ‘pin’ will go into the Breadboard. The super early models, such as the Raspberry Pi B, have just 26 pins. Raspberry Pi revision codes. But I would like to know is any other method that we can access gpio pins directly without w The Raspberry Pi Compute Module 3+ (CM3+) is a range of DDR2-SODIMM-mechanically-compatible System on Modules (SoMs) containing processor, memory, eMMC Flash (on non-Lite variants) and supporting power circuitry. Powered by Known as the four-wire serial bus, SPI lets you attach multiple compatible devices to a single set of pins by assigning them different chip-select pins. Raspberry Pi Zero. We connect one side of the switch to an input pin on the Raspberry Pi, in this case we use pin 10. New-style revision codes in use. Raspberry Pi 5 is a higher-performance computer than Raspberry Pi 4, and you may have problems using an under-powered supply. Nov 12, 2023 · Comparing the Raspberry Pi 5 and Raspberry Pi 4, you will see they have many similarities and significant differences. Hence, the first two pins on the right column are 5V pins, perfect for powering your 5V fan. A few RP2040 GPIO pins are used for internal board functions, these are: GPIO29 IP Used in ADC mode (ADC3) to measure VSYS/3 Raspberry Pi One-Wire Pins. Gpio Provides access to the Raspberry Pi's GPIO as a collection of GPIO Pins. I was able to see all of the gpiochips and all of the GPIO map including the RP1, which is still a mystery part. Substitute 23 in the following commands for your GPIO number (GPIO, not pin number) Nov 15, 2023 · raspberry pi 5 pinout 40 pin description Pricing of Raspberry Pi 5. We recommend a high-quality 5V 5A USB-C power supply, such as the new Raspberry Pi 27W USB-C Power Supply. This is the maximum absolute current that can be sourced from or sunk to all Raspberry Pi Pico GPIO pins at any given time. github. Raspberry Pi 5. You don’t need to consult a pinout chart or count “X pins up Aug 22, 2023 · IO Pins: When wired to your Raspberry Pi, these pins allow you to check the status of the PiPower UPS. 1 64 bit pi-gpio C 11,855,364 toggles per second bench_ioctl C 261,478 toggles per second lgpio C 395,532 toggles per second RPi. High); // Set the IO direction as output pin. In this example, we wire an NXP PCF8523 real time clock (RTC) to the IO Board Bank 1 GPIO pins: 3V3, GND, I2C1_SDA on Figure 4. Set Input and Output Pins. The /boot/config. wireless connectivity, EEPROM writing RasPiO ® Breakout allows you to connect pretty much any kind of wire to any GPIO pin on the Raspberry Pi ® ‘s main header. 40 Pin Raspberry Pi HAT Compatible With Sysbench’s file IO test, the Raspberry Pi 400 Raspberry Pi Pico General SDK MicroPython Other RP2040 boards; Software Raspberry Pi OS Raspberry Pi Connect Raspberry Pi Desktop for PC and Mac Other Android Debian FreeBSD Gentoo Linux Kernel NetBSD openSUSE Plan 9 Puppy Arch Pidora / Fedora RISCOS Ubuntu; Ye Olde Pi Shoppe Raspberry Pi 5. Jul 31, 2022 · https://pdcastro. According to this blog. These properties are set for the GPIO block as a Nov 11, 2023 · The Raspberry Pi is a versatile single board computer that has gained immense popularity among hobbyists and developers. Raspberry Pi 4. It just needs to be able to receive sin waves made by the speakers. Oct 16, 2012 · GPIO pins set to output. He had a problem because Rpi GPIO logic level is 3. Connecting the Raspberry Pi’s general purpose input output ports (GPIO) to a momentary tactile push button switch is a fairly simple circuit. With the Raspberry Pi 5, you get significantly improved performance and better IO capabilities, but at the cost of the analog audio output and increased power usage and thermals. NVMe SSD boot. Make sure your pin label is placed with the keyring hole facing the USB ports, pointed outwards. The following code sets pin 7 (GPIO 4) as an output pin and pin 8 (GPIO 14) as an input pin using BOARD numbering. You can turn on/off input pin hysteresis, limit output slew rate, and control source and sink current drive capability from 2 mA to 16 mA in 2 mA increments. 04 LTS. Raspberry Pi 1 Model A+. Raspberry Pi 1 Model B+. 4 days ago · If you own a Raspberry Pi B+, 2, Zero, 3, 4, or 5, you will have 40 pins in total. Raspberry Pi Compliance Support. 0 board should also not have these pins on a connected. Trying to enable SPI3, 4, 5 and 6, which according to the CM4 datasheet (page 8) can be done by using ALT3. Mar 9, 2016 · # Introduction # The OP would like to use Rpi to safely control a bank of 5 Sparkfun's Beefcake relay module. Oct 23, 2023 · The new Raspberry Pi 5 features a faster CPU, built-in real-time clock, better video and a power on / off button. I am using raspberry pi with Debian Wheezy 18-09-2012 image. Just in case you don't have that handy I've included a printable PDF of our pinout guide for Raspberry Pi 5 In this diagram, we cover the following headers: J8 GPIO Header: This Aug 8, 2018 · I need the pins to be toggled on the schedule of a ~50 mhz FPGA clock, which I'm worried is too fast for the Pi (I need 8 pins toggled). Mar 14, 2024 · If the SPI device needs to communicate back to Raspberry Pi, then it will send data back using the MISO (Master In Slave Out) pin. The exact pricing may vary depending on the region and the retailer, but the Raspberry Pi 5 is expected to be priced around $90 to $120 for the 4GB and 8GB RAM An idea for your consideration, a program able to display info on your web site and take info from your web site and have that info sent to the RPi that operates the GPIO pins. Best practices for revision code usage AIUI (see the FAQs on Power) the 4B uses a maximum of 1A25 under stress, and the USB peripherals are limited to 1A2. Mar 20, 2018 · Hi, I am fairly new to working with the Raspberry Pi so I am hoping someone can help me out before I waste too much time! I was wondering if it is possible to read data from a VGA cable on the IO pins, where the opposite side of the cable is plugged in to a source. These are connected to different pins then the wiki says Feb 2, 2014 · I've also noted that the original design had PIN 76 used for some sort of SD_DETECT (using my poor man reverse engeneering skill on some pictures, yes I'm still waiting for my module ) but it seems that it has been switched to the wireless module instead (I suppose UART0_CTS or UART0_RTS (GPIO32 OR GPIO33), since the other wireless module control pin are routed to the I2C IO expander Jan 17, 2019 · The Raspberry Pi has two 5V pins but they're always on. Accessing 2 x MIPI DSI display FPC connectors (22-pin 0. Pinout also includes hundreds of pinouts for Raspberry Pi add-on boards, HATs and pHATs. 50 mA / 17 =~ 3 mA Raspberry Pi 5, Raspberry Pi 4, 400, Compute Module 4, and Compute Module 4S computers use an EEPROM to boot the system. The I2C pins include a fixed 1. The connections between Pi SoC chip and GPIO header are certainly not designed for it. The Raspberry Pi GPIO Pins. Known USB issues. Dec 16, 2020 · In documentaction for IO Board I found information about it but in my case this solution not work. And probably the first thing that we started working on, on this Raspberry Pi Pico Pin Current. Jun 16, 2022 · Let’s establish what is the “top” of the Raspberry Pi. Raspberry Pi 5, Raspberry Pi 4, 400, Compute Module 4, and Compute Module 4S computers use an EEPROM to boot the system. The relays have an open and close pin, so I need 24 open collector outputs. The speaker is easy to find, just a cheap one from Cool Components however I am finding it harder to find a suitable microphone. Aug 17, 2020 · Raspberry Pi’s biggest drawback is lack of analog-to-digital conversion. 17 pins at 3 mA each means the power regulator is only rated for 50 mA. Raspberry Pi 3 Model B+. In this example, we wire an NXP PCF8523 real time clock (RTC) to the IO Board Bank 1 GPIO pins: 3V3, GND, I2C1_SDA on . Oct 30, 2023 · It worked just fine on the Pi 5. RasPiO ® Breakout reduces the chances of wiring errors because you can clearly see which pin corresponds to which port. As mentioned in a comment, there is no reverse polarity protection, or over-voltage protection on these pins, so be careful! Mar 20, 2018 · This ensures a default value when the pin is set as output pin. There are also 3V3 pins which are always on, but the ones marked 'GPIO' on pinout diagrams (e. after Shut Down System, the Compute Module not wake up. When I short pin 13 and 14 (J2 Connector on IO Board) during ~1 sec. https://pinout. For example, you can use this to see whether your Pi is running off the battery. B. Raspberry Pi Zero W users may want to look for pHAT, smaller HATs designed for Jan 11, 2021 · The board receive RS485 signal from Raspberry and control locks by turning on and off lock current. If you have a RasPiO pin label, it can help to identify what each pin is used for. The default drive strength for each single GPIO pin is 4mA. GPIO stands for General Purpose Input Output. GPIO pins can withstand upto 5V when RP1 is powered, and 3. In both the regular Pi and the Raspberry Pi Zeros, the SD card is defined as the “top” of the Raspberry Pi. 55 (550mA) for your peripherals on GPIO. Using revision codes for board identification. Support Pinout. When the Pi was designed, they used a figure of 3mA per GPIO pins in determining if the regulator could supply enough current. 8207441 1 Raspberry Pi 3-pin Debug Connector Specification Introduction Raspberry Pi is standardising on using a small, keyed, 3-pin connector which can be used for either UART or 2-wire serial debug interfaces. Only red LED D1 is turn-on. 63V when RP1 is unpowered. But recently I decided that I should start coding in C++. Some of the popular languages along with learning material are given below: Using python; With C/C++ using standard kernel interface via libgpiod; With C/C++ using 3rd party library pigpio; Using Scratch 1. This GPIO header is also the same for Raspberry Pi 3 boards, so this guide applies to both versions. set_servo_pulsewidth(self. Raspberry Pi 3 Model B. At those speeds cables, connectors and conductors on the printed circuit board become critical. On the other hand, earlier models, like the Raspberry Pi Model B, B+, and those released before 2014, had 26 GPIO pins Mar 8, 2014 · I don't have a Raspberry Pi, but are thinking about getting one for an application I have. GPIO 2 and GPIO 3 - the Raspberry Pi's I2C1 pins - allow for two-wire communication with a variety of external sensors and devices. Jul 1, 2024 · Every Raspberry Pi since 2014’s Raspberry Pi B+ features a 40 pin GPIO, and all HAT boards are designed for that. Code for clean GPIO Pins. All Raspberry Pi boards share the same GPIO header with similar functionality. Typical Pi projects use the hardware as a very small desktop PC (RetroPie, Pi-hole, media center, print server, etc), and don’t make any use of general-purpose IO pins. I can access gpio pins with Wiring pi tool. Raspberry Pi 3 Model A+. The Raspberry Pi Pico IO pins are able to source or sink up to 50mA of current combined. I do know a fair amount of C++ but I do not know how to control the GPIO pins. Therefore, the information provided in this guide is applicable to both versions 3 and 4 of the Raspberry Pi: Raspberry Pi 4B Dec 20, 2021 · Hey, I'm using the CM4 with the CM4 IO board from Rasbperry Pi running Ubuntu Server 20. In this comprehensive tutorial, we will go through everything you need to know to […] Raspberry Pi 5, Raspberry Pi 4, 400, Compute Module 4, and Compute Module 4S computers use an EEPROM to boot the system. 8 kΩ pull-up resistor to 3. The Raspberry Pi audio boards attach to the Raspberry Pi’s 40-pin header. So they cannot be used to "switch" a solenoid via a program. In this example, we wire an NXP PCF8523 real time clock (RTC) to the IO Board Bank 1 GPIO pins: 3V3, GND, I2C1_SDA on Jan 11, 2018 · But I can easily use the 5V / 10A power supply for the LEDs to also power the Raspberry Pi through the 5V pin, hence using the pin as an input. 3 mhz to 30 mhz, and that's just with Python - they vary even more widely when I look at other languages/packages. You can control the Raspberry Pi 4 GPIO pins using many programming languages. Flammability rating. I've not made my mind up whether to do it with a PIC, Raspberry Pi, or Arduino. To talk to an SPI device, you assert its corresponding chip-select pin. Write(GpioPinValue. 5 mm pitch cable) 2 x MIPI CSI-2 camera FPC connectors (22-pin 0. Be very careful, however not to accidentally apply 5V to any of the other pins, as the I/Os are intended for 3. 3V, but his relay uses 5V logic control. There are 5 pins involved in SPI communication: GND: Connect all GND pins from all the slave components and the Raspberry Pi 3 board together. Camera Provides access to the official Raspberry Pi Camera module. I have looked at wiringPi, but I did not understand how to install and use it on the Raspberry Pi. The PiPower UPS IO Pins Dec 24, 2014 · I'm connecting to an arduino or raspberry pi and would like to have 256 io pins. All other models of Raspberry Pi computer use the bootcode. It is also necessary that you should clean GPIO pins with a GPIO. Company No. Boot flow. The Pimoroni IO Expander adds ADC, 14 GPIO pins and PWM. May 26, 2020 · Meanwhile the fastest I have ever wiggled a GPIO pin on a Pi was about 50Mhz. 4; Using Scratch 2 Oct 28, 2023 · import gpiod import time. 2. Raspberry Pi Power Limitations. Dec 4, 2015 · However in practice, I would recommend driving the pins from 5V logic via at least 10K resistor and also connect an external Schottky diode from the pin to 3. Supply a well-regulated 5V to pins 2 and 4, and ground to pin 6. Raspberry Pi Revision 1 and 2 Jan 28, 2024 · and finally, a general overview of the gpio in the RP1: its now split into 3 seperate peripherals, with duplicates for each io_bank0, io_bank1, and io_bank2, contain all of the function-select stuff, which lets you route any peripheral or RIO (registered IO) to the pins Mar 14, 2024 · Ways to program the Raspberry Pi 4 board. Number of UART ports on Raspberry pi 5 40pin Raspberry Pi 5. The Raspberry Pi comes with PCM (pulse-code Modulation) pins for digital audio output. Product compliance and safety. If you have the official 5V1 3A PSU, that leaves 3-1. There are 40 pins on the Raspberry Pi (26 pins on early models), and they provide various different functions. xyz. So, now the plan is to reverse engineer Les Pounder's Python code into C. I am using the IO pins of the Pi to drive a speaker and a microphone. Raspberry Pi Zero 2 W. Is there any way to increase IO numbers of a Raspberry board? Pin assignments. 3v. Any other thoughts on how to expand my io ports? Sep 12, 2017 · Ive been playing about a lot with high volt batteries etc so i thought its possible ive blown the pins or something but it seems not. By default the Pi allows you to use SPI0 with chip select pins on CE0 on GPIO 8 and CE1 on GPIO 7. See below for our Raspberry Pi GPIO pinout diagrams. I hope that article and this post help someone else in their Pi projects. Raspberry Pi 2 Model B. May 26, 2018 · The Raspberry Pi’s 40-pin GPIO connector often gets overlooked. bin file located in the boot filesystem. This variable contains the Broadcom pin reference for a GPIO pin on all models of Raspberry Pi. The end with the piece of plastic with a hole in it will go onto the Raspberry Pi’s GPIO pins. SCLK: Clock of the SPI. I use Raspberry Pi Compute Module 4 1GB RAM and eMMC. One of its standout features is the GPIO (General Purpose Input/Output) pins that allow you to connect and control external circuits and devices. Future Raspberry Pi Jun 4, 2019 · I have become a real expert with Python and the GPIO pins on my Raspberry Pi B+. Aug 23, 2016 · Note carefully that current versions of the Raspberry Pi only expose one of these pins (GPIO 18 = RPi Pin 1-12) on the IO headers, and therefore this is the only IO pin on the RPi that can be used for PWM. 3V on pin 1 using a resistor. Basically I want to control two SP6T 20 GHz microwave relays (HP/Agilent 87206B-60009). These smaller connectors were introduced with the Raspberry Pi The RP1 on the RPI5 has 28 multi-functional General-Purpose Input/Output pins available on the Raspberry Pi 40-pin GPIO connector. Aug 29, 2016 · The Pi has two dedicated hardware PWM pins and may further use the other GPIO pins for software PWM. Raspberry Pi PCM Pins. Oct 2, 2023 · I am powering my Raspberry Pi 5 (8GB) from a 5V 5A power supply connected to the GPIO pins 2 and 4 with multiple ground connections. GPIO pins are used to connect additional devices, sensors, and wires to the Raspberry Pi, and use it as the brain of any electronic circuit. May 31, 2013 · Pins: 3, 6, and 10, would go to a general purpose(GP) pin on the pi (although, I have no idea if they go, to normal pins, or pins with special markings like: SDA, SCL, TXD, etc. st ar qq ze ta jw lj nm tr ja