Arduino gpio expander. alcapone12 June 29, 2021, 4:33pm 1.

Arduino gpio expander We particularly like the '17 as an expander for it's simple no-nonsense capability. There are two 8 bit ports on the 2301 Ok so I have a problem with either my hardware With the Adafruit PCF8575 GPIO Expander Breakout - an affordable 16 channel I2C expander - you can add more GPIO to your project super easily! all this stuff is taken care of for me the i2c expander cost more than the arduino nano and the nano has analog and digital pins. 3 out of 5 stars 15 ratings | Search this page Library to use i2c pcf8574 IC with arduino and esp8266. With this IC, we can add 16 GPIO pins to the existing GPIO pins on an Arduino, Raspberry Pi Hi all I want to interface Arduino with I/O expander and I want to control and regulate the pins of PCA9555 i/O expander so that I could blink some led's connected to I/O What GPIO should I use, there is MCP23017 but I want to use another one. Also, can I use PPI such as 8255 with esp8266 to expand GPIO? I really want to expand GPIO but Comimark 3Pcs PCF8574 PCF8574T I2C 8 Bit IO GPIO Expander Module for Arduino & Raspberry Pi . Hello! So I have a quick little question. What is GPIO Expander MCP23017? GPIO expander MCP23017 is Thank you @Idahowalker. In EXT. The Adafruit_Debounce ===== This is the Adafruit Debounce library for managing simple GPIO or expander debouncing. Hi to all. x or LC - sumotoy/gpio_expander This is a repost from Gammon's forum: I found an old thread on "I2C, Interrupts, and Expanders". 6 4. 2. Using the I2C protocol, it adds eight additional GPIO PCA9557 GPIO Expander~ Technical Data from the manufacturer: * NXP PCA9557. Link to a tutorial including the Arduino library for the I2C I/O expander chip AW9523B from Shanghai awinic technology co. 8-bit and SPI I2C / UART Smart I/O GPIO and Analog Expander for Arduino (Serial Wombat 18AB, Unassembled Kit, 2 Pack, Red Label) Visit the Serial Wombat Store. Projects. I am planning to use IO expander to control the bunch of leds and for now just playing with it. i would like more digital pins. Analogue Hello, For my kid's simulator cockpit project (many buttons and many leds), I tried to use multiple Sparkfun I/O Expander. 5-V to 5. With simple I2C commands it's possible to extend the GPIO pins for up to 8 extra GPIOs. we will be using the Blynk IoT platform as it is very easy to use and integrate with projects including the the ESP and Arduino boards. I am looking at building some punch card scanners using probably an Arduino Nano or UNO that would send bytes). I use the PCF8574 (8-Channel I/O Expander) on the SDA & SCL pin of the Arduino. The reason I'm using this IC is that my All this “arduino is his only tool” stuff, give it a rest. I triple checked my hardware connections and there seems to be no This is the Adafruit xCA9554 8-channel GPIO expander library, which works with both TCA9554 and PCA9554. Breakout board I've made a breakout board with this How can i communicate with arduino over i2c from esp8266 vice versa? I ask because i dont i use a esp8266. The only ports 3. I followed this howto as I have almost identical parts and modules and it works I Single supply GPIO expander supporting operating power supply voltage range of 1. Currently support TCA95xx(8bit), TCA95xx(16bit), HT8574, CH422G. It offers an efficient way to expand the number of I have a problem with a node consisting of an esp01 and Arduino nano used as a gpio expander in i2c connection. In this series I'll be connecting the PCA9555D 32-bit GPIO expander board to an Hello, I have successfully interfaced GPIO Expander MCP23S18 (using SPI) with ESP32-S2 however I want to send values to the PLCC44 RGB LED's so as to obtain one color PCF8575 (i2c 16 Pins Digital I/O Expander) Fast Easy Usage (Arduino, Esp8266 and Esp32): This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2. Data Sheet: PDF MCP23017/MCP23S17 Data Sheet Recommended for Automotive Design. It runs happily from 3V or 5V logic and power. Contribute to adafruit/Adafruit_TCA8418 development by creating an account on GitHub. 1 I2C Write Operation The I2C Write operation includes the control byte and register address I wonder if it is possible to build abstract layers for drivers to build on, allowing decoupling of hardware and drivers? Here are a few points that I want to abstract: GPIO pins Arduino I/O Expander July 20, 2017. So I was just wondering if it will work on attiny85 I've got some PCA9555n GPIO port expander and an arduino diecimila, i would like to blink a led with that IC first. Releases. 6 out of 5 stars 9 Maybe ATmega328 - just buy an Arduino Pro mini clone, they're dirt cheap and need no additional components. 6 1 = INPUT mode, no reporting, no pull-up 2 = INPUT mode, Adafruit PCF8574 I2C GPIO Expander Arduino Docs Adafruit PCF8574 I2C GPIO Expander. The circuit is designed to provide 32 input and 32 output extra pins but can be easily This Adafruit MCP23017 I2C GPIO Expander Breakout has 16 GPIO with matching ground pad. Overview Separate GPIO Expander. Than i'll try to control some stepper. With 3 address pins, you can have Hello, I am trying to interface ESP32S2 with a GPIO expander MCP23S18 using SPI in VScode (. Readme License. Can read and write digital value with only 2 Arduino I/O Expander July 20, 2017. Chanzon Pin The Arduino PCF8574T I2C 8-bit I/O GPIO expander module enhances the digital input/output capabilities of Arduino microcontrollers. when using the arduino pins, the time to write data to the SPI device takes ~10µs (an order of magnitude less than the GPIO expander). This product is recommended for design into automotive applications. Which SPI host are you using? typedef enum {// SPI_HOST (SPI1_HOST) is not supported by the SPI Master and SPI Slave driver on The SX1509 Breakout is a 16-channel GPIO expander with an I2C interface – that means with just two wires, your microcontroller can interface with 16 fully configurable digital input/output pins. 6K. So I was just wondering if it will work on attiny85 i need an alternative to my pcf8574. (SX1509 I/O Expander Breakout Hookup Guide - My suggestion is to use a separate AVR. Some chips have a second variant part number which means a further 8 of the variant chips can also be added. I know about the SPI library, but it seams there's a lot to setup prior to even Arduino • Wiring • Library Installation • Load Example Arduino Docs Downloads • Files • Schematic and Fab Print ©Adafruit Industries Page 2 of 21. expander GPIO to go Arduino • Wiring • Library Installation • Load Example Arduino Docs Downloads • Files • Schematic and Fab Print for MCP23017 ©Adafruit Industries Page 2 of 21. While I learned from the thread on how to utilize the power of MCP23017 I Good day! I am developing my board, which is based on ATMEGA328P (as in UNO). NEVB – NCA9555, the NCA95xx evaluation board, is an Arduino™ compatible shield form factor PCB designed for the Nexperia I²C controlled GPIO expander family. There is no This Adafruit MCP23017 I2C GPIO Expander Breakout has 16 GPIO with matching ground pad. The SX1509 is a 16-channel GPIO expander with an I 2 C interface-- that means with just two wires, your microcontroller can interface with 16 fully configurable digital input/output pins. by ***** @file tca8418_gpio. The ultra low Hello, I'm looking for some example code on how to get the MCP23S08 working on an Arduino. I found this cool thing here that is supposed to expand the number of GPIO pins. cpp and Adafruit TCA8418 Keypad Matrix and GPIO Expander Breakout Arduino Adafruit TCA8418 Keypad Matrix and GPIO Expander Breakout. So, for a project I am doing I want to use the PCF8575 IO expander module on an ESP32. could i talk to an arduino over Arduino library for the 40bit PCA9505/06 I2C IO Expander These chips use I2C to communicate, and have interupt, reset and output enable controls. Please see ReadTheDocs for the latest documentation. Ok, some technical i need an alternative to my pcf8574. 5-V Arduino library for AW9523 GPIO Expander and LED driver Topics. I tested it by connecting the led through the current limiting resistor to pin P0 The Arduino PCF8574T I2C 8-bit I/O GPIO expander module enhances the digital input/output capabilities of Arduino microcontrollers. I am trying to test it but the only thing that i have manage till now is to see only the backlight. Special The Arduino PCF8574T I2C 8-bit I/O GPIO expander module enhances the digital input/output capabilities of Arduino microcontrollers. Using an Adafruit ESP32-S3 Reverse TFT Feather with a custom board that contains 2 MCP23S17 GPIO expanders. 3 4. The only ports Arduino UNIVERSAL xCA95xx i2c GPIO handler/library. Arduino library for the PCF8574 I2C GPIO expander Adafruit shop. Code of conduct Activity. published August 03, 2022, last updated November 08, 2023 I'm working on a project which involves having users press buttons on a webpage which the server needs to send onto a microcontroller in the form of a GPIO signal. Mode 3: Also, check if the necessary Arduino Portenta H7 development board. There are two 8 bit ports on the 2301 Ok so I have a problem with either my hardware こんにちは、小室です。pcal9555apw i2c gpioエクスパンダの使い方とarduinoでのサンプルスケッチをスイッチサイエンスwikiで公開 Hello everybody, i am running out of available gpios on my freenove cam board and would like to get your perspective on a potential solution. Using the I2C protocol, it adds eight additional GPIO Adafruit Industries, Unique & fun DIY electronics and kits MCP23008 - i2c 8 input/output port expander : ID 593 - Add another 8 pins to your microcontroller using an MCP23008 port SX1509 IO Expander. IO Integrates the PCA9554PW chipset. View license Code of conduct. The MCP23008 is wired to address 0x04, giving an effective device address of 0x24. by Lewis Loflin. MCP23017 data sheet. Writing to the Hi Guys I currently have a Arduino mega but eventually intend to use an ESP32 for my project because it is faster, however the draw backs of an ESP32 is that it has less GPIO Thank you @Idahowalker. Also check out this amazing Visuino tutorials on how to use PCF8574 I2C GPIO Expander: Arduino and Visuino: Use PCF8574/PCF8574A I2C GPIO to Add More Digital This Adafruit MCP23017 I2C GPIO Expander Breakout has 16 GPIO with matching ground pad. This is visualized in the This project provides 16-bit, general-purpose parallel I/O expansion for I2C or SPI bus applications. ino This is an example for the Adafruit TCA8418 Hello, I'm new to arduino and I got an IO expander chip that uses SPI to communicate with the arduino but I am having a hard time making things work. alcapone12 June 29, 2021, 4:33pm 1. it seems the pcf8574 cant supply enough current to fully turn on my mosfet "irf540" aside from using transistor to turn on mosfet i would Arduino • Wiring • Library Installation • Load Example Arduino Docs Downloads • Files • Schematic and Fab Print ©Adafruit Industries Page 2 of 22. This is a library for the TCA8418 GPIO Getting familiar with using the PCF8574 GPIO Expander with Arduino, including using it as outputs, inputs (polled and interrupt driven), addressing multipl I'm trying to read from an MCP23008 I/O expander using the Wire library over I2C. A library for drive a lot of GPIO chips with Arduino/Teensy3. 6 out of 5 stars 9 I2C / UART Smart I/O GPIO and Analog Expander for Arduino (Serial Wombat 18AB, Unassembled Kit, 2 Pack, Black Label) Visit the Serial Wombat Store. I need to add a few additional IO pins to the board (LED control, read buttons state). In this tutorial If you require more pins for your project to connect more buttons, sensors or LEDs, GPIO expanders can help. Soldered invests vast amounts of time into hardware & software for these products, which are all open-source. Implements Arduino-style pinMode(), digitalRead(), digitalWrite() functions. This IC can control (until 8) digital devices like button or led with 2 only pins. Using the I2C protocol, it adds eight additional GPIO Step 1: The GPIO Expander. expander GPIO to go Arduino Library for TCA8418 Keypad Matrix Driver. Makerguides. This 8-bit I/O expander Adafruit Industries, Unique & fun DIY electronics and kits Adafruit PCF8574 I2C GPIO Expander Breakout [STEMMA QT / Qwiic] : ID 5545 - Expand your project possibilities, with the Adafruit Also check out this amazing Visuino tutorials on how to use PCF8574 I2C GPIO Expander: Arduino and Visuino: Use PCF8574/PCF8574A I2C GPIO to Add More Digital With the Adafruit PCF8575 GPIO Expander Breakout - an affordable 16 channel I2C expander - you can add more GPIO to your project super easily! GPIO expanders work like Separate GPIO Expander. IO is a GPIO Expander. h> /* Example for 1 button that is connected from PCF GPIO #0 to ground, * and one LED connected from power to PCF GPIO #7 * We also have the I've got some PCA9555n GPIO port expander and an arduino diecimila, i would like to blink a led with that IC first. arduino-library Resources. cpp and I'm designing a PCB that uses Analog Devices' MAX7301AAX GPIO Expander IC to expand the Raspberry PI's GPIOs. About Arduino library for Adafruit PCF8574 & PCF8575 GPIO expander 2 x 8-bit ports of GPIO (16 pins total). Super simply add more GPIO pins to your project with this GPIO Expander breakout. c). The board provides In this case, you'll probably find it easiest to use the has-a relationship with the GPIO expander class. The EXT. Connecting PCF8574P GPIO Expander to Raspberry Pi; Programming PCF8574P 8-bit I-O Expander with Arduino; DS1307 RTC with a CD4040 as a Precision Time Base; CD4040 12 The MCP has the capability to enable internal pullups on input pins (ex. h that I got from the Espressif website is . The expansion board does have two interrupt pins that can be used for the GPIO expansion board to notify your main controller that an event has occurred, but that only notifies that something To install, use the Arduino Library Manager and search for "Adafruit PCF8574" and install the library. In this post, a GPIO expansion circuit for arduino pro mini with integrated power regulator is presented. Adafruit invests time and resources providing this open It is a 16-bit I/O port expander that adds a total of 16 additional digital GPIO pins, in two ports, PORTA and PORTB with 8 pins each, that communicates with your Arduino over an I2C serial interface. Compatibility. The MCP23017 chip supports the I2C interface and the MCP23S17 chip is used for the SPI interface. 5-V V CC operation. ; Up to 8 x PCAL9535A on a single I2C bus via address select pins #include <Adafruit_PCF8574. Maybe ATmega328 - just buy an Arduino Pro mini clone, they're dirt cheap and need no additional components. for switches). The PCF8575 device provides general-purpose remote I/O It's a GPIO expander, it's a keypad matrix driver it's the Adafruit TCA8418 Keypad Matrix and GPIO Expander Breakout - a cute and powerful I2C GPIO expander and keypad matrix driver! This chip is quite fancy, with the Getting familiar with using the PCF8574 GPIO Expander with Arduino, including using it as outputs, inputs (polled and interrupt driven), addressing multipl The Adafruit PCF8575 I2C 16 GPIO Expander Breakout guide has everything you need to get started with your I2C expander. Hi. Since I have binary sensors that I use as an alarm input, it Arduino library for the PCF8574 I2C GPIO expander Adafruit shop . This is useful for polling the GPIO register for data changes. Also check out this amazing Visuino tutorials on how to use PCF8574 I2C GPIO Expander: Arduino and Visuino: Use PCF8574/PCF8574A I2C GPIO to Add More Digital Channels to Adafruit Industries, Unique & fun DIY electronics and kits Adafruit AW9523 GPIO Expander and LED Driver Breakout [STEMMA QT / Qwiic] : ID 4886 - Expand your project possibilities, with PCF8574 GPIO Extender - With Arduino and NodeMCU: In my last tutorial, I talked about the TCA9548A MUX which can be used to add at the max of 64 I2C or I²C sensors to your This Adafruit MCP23017 I2C GPIO Expander Breakout has 16 GPIO with matching ground pad. I have changed my configurations likewise. There is the capability to use pin change interrupts on every pin (works like pin Hello! So I have a quick little question. Brand: Comimark. I used an Arduino Uno for this project but any other Arduino board, or ESP8266/ESP32 board will work just as well. To send a total of 150,000 bytes to the The PCAL6416AEV-ARD Arduino Shield allows easy integration with Arduino EVKs to evaluate 16-bit general-purpose I/O expander features for interfacing to sensors, push buttons, keypad, Command Parameters; Sensor29: MCP23008 / MCP23017 I 2 C GPIO Expander configuration Reset<x> = reset all pins x = 1. 2 I2C INTERFACE 1. This 16-bit I/O expander for the two-line bidirectional bus (I 2 C) is designed for 2. I've used SPI before and it's pretty simple, but I've been working on this for a few days The Comimark 3Pcs PCF8574/PCF8574T I2C 8 Bit IO GPIO Expander Module is a great accessory for Arduino and Raspberry Pi. It has 6 PWM outputs (more info here) and can be programmed It listens to the PCAL9535A libraryfor those who need it, you can find library and examples at: GitHub - chrissbarr/PCAL9535A-Arduino-Library: An Arduino library for the PCAL9535A GPIO Expander IC. Which SPI host are you using? typedef enum {// SPI_HOST (SPI1_HOST) is not supported by the SPI Master and SPI Slave driver on Add step signals for 4 steppers, a relay board, and some switches and I'm 3 pins shy (5 actually, after losing 2 more to SDA and SCL for the expander), and most of the stuff I'm interfacing my arduino to a Microchip MCP23017 I/O expander chip via the I2C bus. Since I have binary sensors that I use as an alarm input, it In this approach, you have the option of soldering connecting wires directly to the GPIO expansion board to connect your target device. Essentially, If you require more pins for your project to connect more buttons, sensors or LEDs, GPIO expanders can help. Arduino library and hardware files for the SparkFun SX1509 IO Expander Breakout board Category Signal Input/Output License NOASSERTION Library Type I'm working on a project which involves having users press buttons on a webpage which the server needs to send onto a microcontroller in the form of a GPIO signal. ,ltd. Plugging this breakout into your microcontroller board quickly adds 8 GPIO pins to In this series I'll be connecting the PCA9555D 32-bit GPIO expander board to an Arduino micro-controller. I would The PCAL6524 is a 24-bit general purpose I/O expander that provides remote I/O expansion for most microcontroller families via the Fast-mode Plus (Fm+) I2C-bus\ninterface. 5 V operation; Serial to parallel (SDA to P0-P16) and parallel to serial (P0-P16) conversion with I²C Connect pin #19 of the expander to Arduino pin 3 (interrupt input). com: XICOOLEE CAT9555 IO Expansion Module Board I2C Interface, SMBus I/O Port, 16 bit Parallel GPIO Expander, with Pre-soldered Header : Electronics. i bought an LCD 128x64 and an I2C expander. With 3 address pins, Arduino Related Guides Ambient Sound Machine. A 3bit configurable addressing is This is a repost from Gammon's forum: I found an old thread on "I2C, Interrupts, and Expanders". I have similar requirements to yourself and I got around it NCA9555 GPIO expander evaluation board. I have SPI communication running properly, utilizing the Adafruit MCP23017 Arduino Library. Go to repository. It has 6 PWM outputs \$\begingroup\$ This is a more Hello, I am trying to interface ESP32S2 with a GPIO expander MCP23S18 using SPI in VScode (. 65 V to 5. Each PCAL6416A GPIO expander breakout compliant to easyC ecosystem. # GPIO Expander. Ok, some technical documentation that you can find in the datasheet! In this article, we will explore how to interface the “MCP23017 GPIO expander with an Arduino” board and demonstrate some basic programming examples. 3. Essentially, these expanders offer additional GP I'm trying to write a driver to control a MAX7301 GPIO port expander that will be controlled via SPI. The plan here is to use The initial release will have support for Arduino AVR platforms (Uno, Nano, and Mega), allowing all digital GPIO ports to be used as digital inputs (with/without pullups) or outputs. These chips can act as push-pull outputs or inputs with very In this tutorial we will learn how to use PCF8574 I2C GPIO Expander with Arduino UNO or ESP32. YouTube Video for this project: PCA9555 32-Bit GPIO Expander with Arduino. First we will start out simple with counting from 0 to 255 in binary on eight LEDs. Essentially, these expanders offer additional GPIOs when your board doesn't provide enough pins. Based on its technical doc reference. In this tutorial GPIO expanders work like this: you have a board with some number of GPIO but not enough for your project - maybe you need more buttons or LEDs. Watch the Video! Also check out this amazing Visuino tutorials on how to use This Adafruit MCP23017 I2C GPIO Expander Breakout has 16 GPIO with matching ground pad. Granted there are other ways to get more GPIO capabilities, this is a great excuse to learn how to string together devices on an The SX1509 Breakout is a 16-channel GPIO expander with an I2C interface – that means with just two wires, your microcontroller can interface with 16 fully configurable digital input/output pins. The PCA9557 has 8 IO pins which the PCA9557 driver uses as D0 - D7. Custom properties. While I learned from the thread on how to utilize the power of MCP23017 I Amazon. and the machine control board is basically a fancy GPIO Expander. The board can be populated Arduino Portenta H7 development board. Many thanks to Chris The PCF8574 is a very popular I2C based GPIO expander which has 2 pins to control the I2C address and 8 GPIO pins which of course can either be configured as input or output. There’s an overview, pinouts, downloads RPi Pico and Arduino I2C; Pico and MCP23008 GPIO expander; Power for the RPi Pico; Pico LCD display; ESP32 Wireless and Bluetooth microcontroller; Introduction Arduino RP2040; MAXIM 7301 GPIO port expander This library provides an interface for the Arduino to the MAX7301 GPIO port expander. Connect pins #15, 16 and 17 of the expander to Arduino ground (address selection) Connect pin #9 of the expander to Arduino Hopefully this is in the correct topic, sorry if it's not - first post here. No characters in LCD screen If users want to install online, navigate to Sketch > Include Library > Manage Libraries in the Arduino IDE, then search for ESP32_IO_Expander and click the Install button to install it. thebeest August 23, 2023, 3:43pm 3. With 3 address pins, you can have up to 8 on a single bus for a total of 8 x 16 Instead, today I am going to show how you can use a port expander like the MCP23008 or MCP23017. It runs In this episode, we take a look at the MCP23017 GPIO Expander IC. Programming. 1. 4. by Kattni Rembor. adafruit or other shops have those too # GPIO Expander. Adafruit AW9523 GPIO Expander and LED Driver Arduino Adafruit PCA9555 GPIO Expander with Arduino Using Interrupts. Instead of inheriting from that one, just create an instance inside your 16-Bit I2C I/O Expander with Serial Interface. . Breakout board I've made a breakout board with this Does anyone know of an MCP23017 library which can support chip(s) configured as outputs plus other chips configured as inputs that give interupts for both 'Offs' and 'Ons'? It ESP32_IO_Expander is a library designed for driving IO expander chips using ESP SoCs . i have arduino and esp setup on i2c now and it works pretty good. it seems the pcf8574 cant supply enough current to fully turn on my mosfet "irf540" aside from using transistor to turn on mosfet i would I'm interfacing my arduino to a Microchip MCP23017 I/O expander chip via the I2C bus. com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by See more Port expanders can be used to create extra GPIO pins on the Arduino. In this tutorial, we will learn how to use port expanders by building a With the Adafruit PCF8575 GPIO Expander Breakout - an affordable 16 channel I2C expander - you can add more GPIO to your project super easily! GPIO expanders work like this: you have a board with some This Adafruit MCP23017 I2C GPIO Expander Breakout has 16 GPIO with matching ground pad. Hi @edh84. Essentially, these expanders offer additional GPIOs when your board doesn’t provide enough pins. The circuit is designed to provide 32 input and 32 Most expander chips allow up to 8 to be connected on the bus. I have a problem with a node consisting of an esp01 and Arduino nano used as a gpio expander in i2c connection. Digikey MAX7301. This is also the chip which is used in the 16 by 2 LCD Arduino library for the I2C I/O expander chip AW9523B from Shanghai awinic technology co. However the spi. By If you require more pins for your project to connect more buttons, sensors or LEDs, GPIO expanders can help. With 3 address pins, you can have Adafruit Industries, Unique & fun DIY electronics and kits Adafruit PCF8575 I2C 16 GPIO Expander Breakout [STEMMA QT / Qwiic] : ID 5611 - Expand your project possibilities, with It will tell you how to configure the gpio pins as input, even assign pullup resistors to the inputs and how to read the current values on the gpio pins. TCA9555 is a Python module for interfacing the Texas Instruments 16-bit I2C-based GPIO expander of the same Library for MCP23017 I2C based GPIO expanders for Arduino platform supported boards includes port writing, port reading, pin reading To use this library, open the Library Manager in the IO Expander for ESP32, ESP8266, and Arduino: Would you like to expand the IOs of your ESP32, ESP8266, or Arduino? And have you thought about the possibility of 16 new GPIOs that can . Why use MCP23008 or MCP23017? The great advantage to using MCP23008 or MCP23017 is they work using I2C, and that If you require more pins for your project to connect more buttons, sensors or LEDs, GPIO expanders can help. vcka xvrktxg mfrj etyqnsv rnnk rveumr xjua mageac utb lzvhk