Labview + ArduinoVideo 1 Stepper motor Link:- https://youtu. generate a PWM signal that can be adjust to see how my motor responds. NI motion controllers under P-Command mode can be used in this scenario. 10-11-2010 06:10 PM. motor has been emphasized to in numerous works and publications [ LabVIEW is a graphical 3]. This VI is designed to work with Big Easy Stepper Drivers. In this video I demonstrate how to control a 28BYJ-48 stepper motor with a ULN2003A driver board in LabVIEW using the Hobbyist toolkit. Nov 12, 2004 · Active Participant. GerdW. Motor Direction Control using L298N + Arduino Programming3. This implementation technique used to avoid the problems which create during analog and digital interfacing system in real-time. Servo Motor is a device with a small output shaft. Feb 28, 2024 · The LabVIEW SoftMotion Module (no longer sold by NI) was an add-on for LabVIEW that helped with the control of motors and drives using high-level commands and develop custom motion applications using NI real-time and FPGA. thorsten. For PID you can use Control Design and Simulation Toolkit. Stepper Motor Control using LabVIEW and NI-myRIO A Ganesan1 R Nhizanth2 S Kamban3 Gopalakrishnan. Procedure. This program will allow you to create a continuous pulse train with a duty cycle that varies in accordance to an acquired input voltage using only DAQ hardware. DC Motor Speed Control using L298N Driver2. Jan 6, 2021 · 1. Dec 15, 2017 · 2. Hello all , i am new to servo motor control with labview. To control a DC motor, we built a system using LabVIEW as the main controller and processor with a USB-6008 DAQ module as the interface, an H-bridge as the subcontroller, and a Hall effect encoder of the motor as the sensor (see Figure 1). In that servo drive having the RS 485 port . com/academic/myrio/project-gui May 16, 2021 · 1. 12-04-2012 04:37 AM. The main contribution of this paper is to present the efficiency of LabVIEW in simulating and controlling a servo system with conventional methods (PI and PID control), as Jun 3, 2024 · A dialog box will appear notifying you the installation was successful and the location of the driver. This article will go through hardware consideration with Jan 26, 2023 · Solution. 5) Click start button, repeat that step. Step 1 (Preparations): Go through videos, resources, examples, and step by step exercises you find below in your own pace. The output of the driver is 3-phase with 200-300 Volts at 2. 1) Turn on boolean, then click start button. ***Note: The attached tutorial is slightly out of Oct 1, 2014 · The speed of the dc motor will be sensed by using the tachometer. The schematic below illustrates the setup used to test this control algorithm (for this specific control algorithm, the 7th "bus level" gate was programmed to always be energized). The Motor is controlled in Position mode. From tachometer, the output is sent back to the PID Controller in LabVIEW The Quanser Controls Application Board is a versatile servo system designed to teach the fundamentals of DC motor control, with an optional pendulum module to teach advanced topics in non-linear control. Labview + ArduinoPart 1 Jan 4, 2015 · The objective of this video is to control the speed of DC Motor by changing its Duty Cycle using NI myRIO with LabVIEW and H-Bridge. Se instal La interfaz de arduino para Labview. Labview + ArduinoThe Getting Started with LabVIEW 2020 Community Edition course guides you through t Oct 20, 2017 · LM35 is used as a temperature sensor with the aim of measuring the temperature o f the motor. 5 amps and a frequency of 1-120 Hz. I have also provided the complete NI LabVIEW VI for DC motor control using myRIO. lib for Plug and Play drivers. Run the VI. Get access. calibrated directly in Celsius and has a linear +10mV/C scale factor. Se debe tener instalado el Driver NI Visa para Labview es para la comunicación serial. Hello everyone, Id would like some general advice on Servo Motor Control. Pulse data. https://www. My advice is to use the Software designed by Clearpath to run these motor Jul 21, 2020 · Descarga del Programa en LabVIEW 2015 profesional:https://drive. Download All. The motor shaft is connected to a flag. A pulse width modulation (PWM) technique is employed to control motor speed. . It depends which type of control you want. ). Mar 5, 2020 · The DC Motor in a test stand is controlled by LabView via a Arduino board. Simple ON/OFF if so then you can simply use serial (VISA) function to write to controller and make the decision. This signal has a total PERIOD and a range of DUTY CYCLES by which the motor moves a certain degree. For example, PCI-7334 support controlling stepper motors, and PCI-7352 supports controlling both servo motors and stepper motors. Step 2 (Delivery Assignment): Solve the Delivery this paper presents the implementation of a proportional-integral-Derivative (PID) controller for motion control of a DC motor based on FPGA. Requirements. Hi Sunny, the output of the PID is a number used to set an actuator. Refer to your servo motor's datasheet for total pulse duration, frequency and range of pulse widths (duty cycles) to create a PWM signal. From what I can gather, I only need to control the on/off Feb 7, 2014 · Walk through the "Servo demo" LabVIEW project and learn how to create the pulse-position control signal for the GWS S03N STD servo. Connect the PXI-7358 "Inhibit Output" to the Copley drive's "Enable" input. Generally servos require 3-5V peak to peak square wave pulse. I do have an 15V external power supply unit but havent used LabVIEW before. If you feel any problem, you can ask us in comments. The instrument driver should be installed in <National Instruments>\LabVIEW< xxxx >\instr. Download the project files at http://www. com/playlist?list=PLV5QVqPUAV9jqbgGV_g3hn3_jXqbGoKEhYou can get the VI from this linkhttps://driv This video presents DC motor control by interfacing DC Motor with NI MyRio along with H Bridge. A Pulse Width Modulation (PWM) Signal is a technique for generating digital pulses to control an analog circuit. zip 67 KB. May 13, 2015 · In the movie the motor is working well but in my case it didn't happen. Students learn how the proportional and integral gains effect the control system by modifying the respective gain values. I need help to do a code LabVIEW that control VXM-1 Model and measure the displacement of a Velmex Unislide. Read the manual of your stepper motor to learn about the steps per revolution. required to run Jul 1, 2014 · In this paper, an effort is made to control the speed of the DC motor and figure out the design process of a PID controlling system of close loop system using LabVIEW software. This session is not intended as an onboard programming Jan 1, 2015 · Using LabVIEW software, this study attempts to control the speed and position of a DC motor as well as calculate the closed loop system model. Watch on. Introduction to PID. Flow Chart. Prerequisites: Basic LabVIEW Programming. Open the Arduino Stepper Motor Example VI (search for "Arduino" in the example finder once the toolkit is installed). Flow chart for this project is shown in the figure below. Controller gains are P (Kc) = 0. I am not good in Labview and dont have much knowldge about stepper motor, but this part of my project and I have to do. You are asking very generic questions, so I can only provide very generic answers. I am a new with using LabVIEW and very optimistic to get assistance. Apparently all hardware is installed correctly: cRio-9074 and NI 9512. NEMA 17 Stepper Motor Control2. Direction control NEMA 17 Stepper Motor Control2. On the front panel, select the stepper motor # you want to use. Nonlinearity in any system has undesirable Oct 15, 2008 · A hardware implementation also requires a 6-FET (or 7-FET) motor drive with access to the individual gates. The LabVIEW Control Design and Simulation Module is add-on software that integrates with the LabVIEW programming environment to offer capabilities such as built-in parallelism, multicore, and Aug 6, 2015 · It's my first time to write in this forum. Aug 5, 2013 · Walk through the "Motor demo" LabVIEW project to learn how to activate a DC motor. To be able to control the pins on the PI, there needs to be a program running on the PI that LabVIEW/LINX can talk with. In this example, You can supply the input voltage by simply Mar 22, 2009 · 03-22-2009 01:19 PM. At the moment I have it working in open loop Sep 5, 2013 · Labview Interfaced with Arduino: DC Motor Speed Control Use the coupon code🔥YOUTUBE 🔥to get 20% discount on the PLC and IIoT courses available at https:// Jul 28, 2011 · Motor control is a common application using LabVIEW and you can develop custom functionality such as you are describing. A PWM pin will be used to control the speed of the motor. LabVIEW. Jan 3, 2012 · Tutorial: Make sure you have installed the LabVIEW Interface for Arduino. It is the most common control algorithm used in industry and has been universally accepted in industrial control. This document contains step-by-step instructions on creating a motion control system that uses a joystick to move an X/Y stage. PID and Fuzzy Logic Toolkit. Hi Thomas, Servo motors accept "PWM (Pulse Width Modulated)" signals to work. LabVIEW VISA Tutorial 52. Now, go to the Front Panel and Right Click on it. 2) Click stop button, then turn off boolean for change motor direction by closing line 0 and opening line 1. rar file, extract the files from the folder and enjoy the complete DC Motor Speed Control in LabVIEW simulation. Place the “PWM write pin” Block on the LabVIEW “Block Diagram” panel. On the axis of the DC motor a flywheel is attached. 08-17-2012 02:04 AM. 3) Click start button. Jan 4, 2024 · Windows. Contents. A VI (virtual instrument) is developed with LabVIEW that allows the DAQ to read a user selected reference voltage continuously. It is not working fine. I used a simple programming Language Program named Lab-View for that Video: LabVIEW in Automation - Control Systems in LabVIEW. Labview + ArduinoDownload Program :- https://drive. Similarly, place the second “Digital Write”. Servo Motor LabVIEW + ArduinoLabVIEW is a graphical programming language Jan 10, 2011 · This tutorial demonstrates how to get the FRC roboRIO up and running a motor. This will open a windows help file with a comprehensive list of methods, properties, events, etc… to find the motor control methods please expand the Oct 24, 2020 · 1. first of all regarding the software my requirements are as follows: 1) I have to read a cad or any vector image. Additional Information or References. 3. hrh212. In the tutorial Stepper Motor Speed Control in LabVIEW, I will explain you a complete step by step procedure to control the clockwise and counter clockwise direction of the stepper motor as well as accelerating and decelerating it with the help of the buttons on the GUI created in NI LabVIEW using serial Oct 10, 2011 · I want to build a Labview Software/application which will directly control the stepper motor for a cnc one axis (at present). Nov 26, 2012 · I'm trying to control a dc motor through Labview and arduinothe problem is that i find stepper moto and servomotor in the librairies but not dc motor what to do please 1 Kudo Message 1 of 20 Jan 1, 2015 · control. I would like to ask is it possible to set and change the direction of the motor rotation in labview and to generate the PWM signal in arduino processor. com/drive/folders/1d0dCEfXJ_MuWYH72NbgSx Dec 22, 2011 · PWMServoControl_LV2010. Download the project file May 15, 2021 · Abstract and Figures. Mar 25, 2014 · Re: MG17 Motor Help. Hi folks, I am working on speed control of 3 Phase AC motor using PID and having troubles in the output response. The SoftMotion Drive Interface (SDI) is the solution NI developed to standardize communication with third-party EtherCAT Sep 1, 2021 · The functional application of DC motor is focused on this research by using LabVIEW for position control system. I have a couple of questions about your set-up to get us started; What hardware do you have to interface between your computer and the motor? Jan 9, 2014 · Options. the stepper motor is controlled by sending digital signals from CompactDAQ. com/gp/product/B01AF40PHI?keywords=labview%20arduino%20book&qid=1455090622&ref_=sr_1_1&sr=8-1This video shows how a hobbyist servo motor ca Aug 18, 2016 · I am currently trying to develop a pogram to do motor control. Students learn how to use a PI (proportional-integral) compensator to control motor speed. It looks like the P402 is a stepper drive/amplifier, not a controller. How to setup Hobbyist/ Apr 24, 2017 · Download . I am trying to control a stepper motor in a closed feedback loop system with a load cell. We will go over how to use the #L298N H-Bridge IC and a Relay wit Oct 12, 2010 · Steps to Implement or Execute Code. Para simulación. This p aper deals with the co ntrol of stepper motor. 004; Iteration rate - 50ms. youtube. Labview + Arduino + Servo + PID3. 5. This will allow for control of the motor's movement through programming. programming language that is widely used for monitoring systems and transferring data to a computer [4-5]. LabVIEW Programming SeriesProportional-Integral-Derivative (PID) control is th Feb 7, 2024 · Combinado con el Módulo de Diseño y Simulación de Control de LabVIEW, LabVIEW PID Control Toolkit puede ayudarlo a simular y ajustar sus controladores PID sin implementarlos en sistemas del mundo real, evitando así posibles problemas como inestabilidad durante el desarrollo de aplicaciones. Hi All, If you already haven't seen on the main LabVIEW forum I created a topic where I post tutorials on how to do things in LINX with platforms such as the Arduino and ESP8266 platforms. 5mS as center. It can be used in the applications such as a wireless control for a robot. Apr 21, 2021 · 1. It has three input terminals. Here is my latest tutorial, where I show you how to control a DC motor in LabVIEW with an Arduino + L298N/Relay. Operation range of the The LabVIEW Control Design and Simulation Module helps you simulate dynamic systems, design controllers, and deploy control systems to real-time hardware. For an example of this, look at the following VI snippet or the VI snippet in Scenario 2. ni. Hi yes you can control your motor using Labview. The transmitter section comprises the Arduino Uno, power supply, PC (for LabVIEW), LCD, and the RF modem. Some servo motor drivers support pulse control mode. Se carga el archivo Lifa_base. You can calculate the velocity by integrating the acceleration of the Here I named my motor reference “Motor5”, but you can name your motor whatever you want in the “Begin. Step 3: While doin Step 2; simultaneously read torque cell data (Using DAQ asst. so i am using the RS 485 to RS 232 converter to my PC. The driver also has an output source of ½ horse power. First of all I would like you to explain the algorithm of DC Motor Speed Control in LabVIEW with the help of a flow chart. Jul 27, 2009 · 3. 7z 58 KB. Apr 18, 2012 · We need something in the order of 5% to 10% duty cycle (1ms/20ms to 2ms/20ms). May 15, 2021 · Abstract The main contribution of this paper is to present the efficiency of LabVIEW in simulating and controlling a servo system with conventional methods (PI and PID control), as well as sliding mode control (SMC). View Sep 14, 2023 · So (as Mathematicians say), we've reduced Stepper Motor Control to producing a Pulse Train. Select the DO channel connected to the transistor. Overview. 1mS with 1. 0, and see if you can control the motor from this tool. If you haven't installed LIFA then on this forum's main page click on the "Documents" tab and look for "Labview Interface for Arduino Setup Procedure". May 1, 2018 · Comparing with the single-chip controlled stepper motor, this system based on LabVIEW has a good interface, the easy programming to effective control, that is the practical application value. An open-loop DC motor speed control system is developed using National Instrument's Data Acquisition (DAQ) Board (Model 6040E) and LabVIEW software package. Modify the VI to use PWM to control the motor speed. Options. Use the Copley Controls CME 2. My requirement is, Step 1: Initialize the motor. i have a Mitsubishi servo drive ( MR - JE -40 A SERIES ) With servo motor interfaced. I am trying to run the motor using NI USB-6210 and LabVIEW 2022 Q3 on a Windows platform. LM35 is. Jan 27, 2009 · I am using LabVIEW 8. 9mS to 2. 4) Click stop button, then turn on boolean for change motor direction. Nov 12, 2020 · 08-29-2020 11:01 PM. I am able to set the motor's speed as well as its direction. For that sample rate the USB 6008 or 6009 is fine. Oct 30, 2020 · 1. Learn Arduino Programming Sid Mar 14, 2023 · The following illustration shows this dynamic system. LabVIEW Programming4. 2 amps and a frequency of 50-60Hz. The purpose of this exercise is to highlight a real-world application of the NI 734x series of motion controllers and to introduce onboard programming. Oct 11, 2010 · Re: Three Axis Stepper motor control and DAQ. the controller used in speed controller loop. be/WpOttQLEwUADownload Program Jul 17, 2021 · NI usb 6009 วัดความเร็วรอบArduino uno ปรับความเร็วรอบมอเตอร์ Feb 19, 2012 · The source of the driver is 3-phase with 200-300 Volts at 3. Pulse duration is from 0. Currently, im using a 6601 card to generate TTL pulses to control a Baldor DC servo motor through a closed loop PID system. Be able to continuously acquire data as I adjust the DC of the pwm signal. LabVIEW programming, which is p retty simple. Stepper Motor Control2. 03-31-2014 08:11 AM. The help files can be found in the Thorlabs start menu folder the default location is START MENU>>ALL PROGRAMS>>THORLABS>>APT>>HELP>>APT SERVER HELP. PWM Servo Control LV2012 NIVerified. com/file/d/12udKSjx1gfW1gnwHUsrdcSo0zDU39Usu/view?usp=sharingEn este videotutorial te Dec 22, 2022 · Looks like the Stepnet motor driver is what we call a "communication-based" driver, it can accept commands coming from your PC/PLC via RS-232. This would be a good foundational check to see if all of the hardware is working http://www. The things I would like my script to accomplish are the following it: 1. Labview PID Industrial Project Part_22. Dec 4, 2012 · cRio Steper Motor Control NI9512 step by step. A closed loop real-time control system with an added 298 encoder coupled to the Nov 6, 2017 · LabVIEW has a set of VIs that are designed for Motion Control. 1. NI motion controllers support controlling servo motors and/or stepper motors. We installed two Hall effect sensors 90 degrees apart in the rear shaft of the motor. 018, D (min) = 0. The electrical or electronics projects where there is a need of motion, servo will be the best option in this case. Place “Close Block” as follows: This process results in the following LabVIEW Block diagram: Click on the white space on “Block Diagram” and follow Nov 22, 2023 · A couple of options for this situation are: Use an AC drive controlled by a communication protocol accepted by LabVIEW. Set the Setpoint and Start Process Variable. nathand. By LabVIEW-aided Feb 7, 2017 · Hi all, I am farely new to using LabVIEW/myRIO and need guidance on how to control a Crouzet brushless dc geared motor 80 189 704 it is supposed to be relatively simple as it has built in electronic control. vi". Here's how I would get started: 1. Read the manual of the device driver of your stepper motor controller to learn about the LabVIEW support it provides. This lab introduces the fundamentals of deriving a closed-loop transfer function to define the motor speed system. i would like to control ( communication ) using labview. We will try our level best Mar 5, 2021 · 1. Details of my setup, CRIO-9035, NI 9263 module (0 to 10V output for the drive) and proximity sensor for speed estimation. google. Drone Motor Control2. 2. Configure the PID gains. ino a la tarjeta Arduino. it is six wires, two wires for power taking power from the feed of the valve and four wires are for control of movement. Proven Zealot. 5 to implement control of a brushless AC servo motor. Apr 27, 2017 · A command box variable having command A will rotate the stepper motor in counter clockwise direction. Follow the steps given in the procedure to install LIFA. Two terminals are for the power supply and the third is for sending the servo coded signal. The user would have to input two things : the maximum load applied and the frequency of the motion. Refer to this example to perform some basic stepper motor In this video I will show you how to control a DC #motor in #LabVIEW with the LINX toolkit. As for the motor control, I think there's one piece missing from your description. Knight of NI. Oct 25, 2017 · 10-25-2017 01:39 AM. Sparkfun Inventor's Kit for LabVIEW - 13 | DC Motor. LabVIEW + Arduino Programming Series3. Add a conditioning stage that raises the voltage and current, which would allow usage of an NI analog output device. It is an advantage if you know what a differential equation is. A single control cable connects the motion control board to Dec 10, 2016 · I am using labview 2015. The VI also generates a suitable Nov 24, 2019 · This is my plan. The pulse. Since I do not have access to an encoder, I cannot know the current position of the motor. R4 1,2,3Student 4Assistant Professor 1,2,3,4Department of Instrumentation and Control Engineering May 6, 2020 · 2. 2) accordingly i want to either. zuhaus. The command box variable having command S will stop the rotation of the stepper motor. I am trying to controll a stepping motor controller (VXM-1 Model) with Labview, which is moving a Velmex Unislide. Furthermore, you will need Copley's CME2 software installed and a serial cable connected to the Copley drive so that you can change the settings on the drive so that the drive knows it will be controlled by an external device. It walks through the hardware setup and the programming necessary to control a motor with a joystick, as well as covering basics such as setting up the FRC Control System and setting up an FRC Robot Project. a) generate the g code and control it through drive ( which is conventional) Aug 26, 2017 · Servo Motor Control using myRIO. Nov 8, 2023 · NI USB 6210. You have chosen to purchase a package that has custom hardware and software, with the Software designed as C++ Projects using a custom SDK that "hooks into" the specialized firmware inside the Teknic motor. Make sure the instrument driver installed properly by checking if it appears in the LabVIEW palette. The goal of this tutorial is to use the LabVIEW Control Design and Simulation Module to view the position x ( t) of the mass m with respect to time t. To count the revolutions of this flywheel a hall sensor was added. Hello, I have a project at University, and I need to design a LabView VI to controll a steper motor. LogicsThe Getting Started with LabVIEW 2020 Commu Jan 14, 2015 · An Arduino Stepper Motor VI comes with LIFA. The system is designed in two sections: (1) transmitter section and (2) receiver section. ABSTRACT. Step 2: Start moving it at a uniform RPM to the right (This RPM value too user can enter). How fast the Pulses arrive determines the speed of the motor (there are some practical considerations -- don't give it a 1 MHz pulse train!], and the number of Pulses in the train determine the total size of the movement. System Overview. Hi, I am using a stepper motor (Nema 23) along with a stepper motor drive (DM 556T) from stepperonline. It also shows the effects of using PI Mar 27, 2021 · Direction control NEMA 17 Stepper Motor Control2. Tachometer is a sensor which measures the revolutions. Watch my other videos from the playlist. We also include ready-to-run high-level, multiaxis control VIs, along with numerous application examples. The control of the DC Motor using LINX within LabView works quite well. This project is designed to control DC motor with the LabVIEW GUI. How to Operate Servo Motor using LabVIEW + Arduino2. A PWM signal consists of two main components that define its behavior: a duty cycle and a frequency. You can calculate the position by integrating the velocity of the mass. The control of an actual system with LabVIEW and NI hardware provides an efficient implementation platform, using both LabVIEW’s graphical programming and the text-based m-file Aug 17, 2012 · Re: motor control by serial port. Software: LabVIEW 2012 (or compatible) Dec 29, 2019 · By using LabVIEW as the motor controller, we can control a DC motor for multiple purposes using only one software environment. Nov 22, 2023 · A couple of options for this situation are: Use an AC drive controlled by a communication protocol accepted by LabVIEW. vi” You may want to use multiple buttons from the same joystick for control. I hope you enjoyed the tutorial. Go to Controls-> Modern-> Boolean and you can see there different Boolean blocks. Member. 11-11-2004 07:11 PM. Se baja Vi manager para labview. Dec 2, 2020 · This is all from the tutorial DC Motor Control using myRIO. This document is part of the Getting Started with NI-DAQmx Series. And your Raspberry PI is running Linux as its OS. using NI myRIO, because it is les s co mplex to work with. I have provided a lot detail about the working of DC motor and its control through myRIO. In your case you have to send that number to your motor control board, which expects strings (not any kind of HEX)! As you already gave examples of the expected strings you would use a Sep 22, 2020 · This study explains the development of a Field Oriented Control Algorithm (FOC) based on SVPWM technique by using the LabVIEW FPGA Module for a BLDC Motor. Proportional-Integral-Derivative (PID) control is used in a closed control feedback loop to regulate a process, such as the motion of a motor or the flow through a valve. 4. Motion Control Peripherals nuDrives are motor power drivers for use with National Instruments motion control boards and application-specific motors, encoders, limits, and user I/O. By making use of the power of FPGA on the compact RIO, we can easily control the servo motor. This article will help you control the motor for some simple moves in LabVIEW. My vi only allows for a 50Hz update rate. According to the data sheet, the Feb 9, 2021 · NI-Motion. Learn more Apr 10, 2021 · Linux is a operating system, just like windows. Description. take current and voltage readings using a DAQ 6009 USB card. The motor only needs to turn for a start. 282 ,I (min) = 0. Labview Interface for Arduino3. Download and open the example "PID VI for PWM Control LabVIEW 2012 NIVerified. When you use LINX with an Arduino, you also need to download some firmware to the Arduino board before LINX can work with the Apr 27, 2017 · Stepper Motor Speed Control in LabVIEW. how to find in LV. Oct 12, 2017 · LabVIEW. Mar 28, 2023 · You may need to control a stepper motor drive (step or direction) using the digital outputs of your USB DAQ. Run the VI, and toggle the motor on and off using the LED control on the VI front panel. LabVIEW + Arduino Programming + VISA4. Open the LINX - Digital Write 1 Channel example from the LabVIEW Example Finder. amazon. If using preset movement enter the speed, number of steps, and acceleration. LabVIEW programming is explained in detail to simply control May 10, 2010 · Hardware : cRio9073, C series module 9403 for stepper motor control and 9215 for load cell data acquisition. I can't change in run time the speed of the motor. How to Operate Servo Motor3. Make sure you have connected all the necessary wiring and provided sufficient power to the motor. I would like to at least start and stop the motor with labview and if possible speed up and slow down. eq ku qt uu yb wt an rv bm qo