.Click images to enlarge. Downloading RobotC: Starting right at the beginning, the first thing that you have to do, in order to program the robot, is have a programming software and compiler! This is made simple with RobotC - In the pictures, you can see the steps required to install RobotC, but just in case, they are also listed below: 1. Select Download, and in the drop-down, select the version you want, for this demonstration I will be using 'RobotC for Vex Cortex & PIC' 3.
Click the Blue download button 4. Wait for the download to complete. Once it has, click and open the.exe file Installing RobotC: 1. Follow on-screen instructions to successfully install RobotC 2.
Let's get to work! Open the new icon on your desktop!.Click image to enlarge. Purchasing a RobotC license: Purchasing a license is very simple, you go to the robotc website and select 'Purchase', after, find the version of RobotC and pay for it - Registering your software: Once you have purchased a license, it is not difficult at all to register your software: 1. Click on the 'Help' tab, and then click 'Manage Licenses' 2. Click 'Add License', select your version, and fill out the necessary fields. If everything was entered correctly, your license should be ready and working right away!.Click images to enlarge. Selecting the right platform: The first thing we need to do, after activating the license, is to make sure that the proper platform is selected.
To do so, go to 'Robot Platform Type VEX Robotics VEX 2.0 Cortex'. Once this has been selected, we are ready to start programming a competition template! Opening your first Competition Template: To open your first competition template, where we will do all of the programming, go to 'File New Competition Template'.
Vex Coding Studio
IMPORTANT NOTE: When first opening the Competition Template, do not change ANY values, unless you know EXACTLY what you are doing. If these values are changed incorrectly, your program WILL NOT work! Motor and Sensor Setup: The first thing you should do with any RobotC code, is setup your motors and sensors, so that we can begin to program a drive.
If you do not setup these motors, it will be a pain to change all of your motor names in your entire code once that is done. Essentially, make sure your robot has at least a chassis with motors on it before you start programming!
To setup your motors: 1. Go to 'Robot Motors and Sensors Setup' 2. You will have many tabs to choose from, to setup the motor ports, navigate to the 'Motors' tab, for Analog Sensors, navigate to the 'VEX 2.0 Analog Sensors 1-8' tab, etc.
Enter a name for the motor and/or sensor beside the correct port number. In the 'Type' drop-down, select what type of motor or sensor you are using. IMPORTANT NOTE: You may have to reverse a motor, depending on how it is positioned on the robot.
An example of a completed Motor setup can be found in the gallery above. Once you have successfully completed the Motor and Sensor setup, you should now have several lines of new code at the very top of your Competition Template. Do not try to change these values directly in the code while you are still learning, stay with the graphical Motor Setup!.Click images to enlarge. Competition includes: Competition includes, load all the files and values that the program uses to make it work in a competition. DO NOT edit any of these, unless you know EXACTLY what you are doing.
Pre-Autonomous: The Pre-Autonomous is the field where you tell the robot what to do, before the competition match starts. This means that if you need a Gyro sensor to be reset to 0, so the autonomous turns to the correct degree, this is where you do it! Autonomous: This section of the Competition Template, is where you put your program-controlled drive, for the beginning of every match, otherwise known as the 'Autonomous'. In this code, everything that you want the robot to do MUST be controlled by your program, as trying to implement a drive program WILL NOT work in the Autonomous section of a competition. Driver control: Within the 'while' loop, this is where you program your driver control. If you want a joystick to move the robot forward, while the other joystick turns it, this is where you would program it! In this mode, if you try to program an Autonomous to be triggered when you push a button, it can be done, however it is more advanced and can be quite difficult to operate.
Functions for Autonomous: At the very top of your program, after the motor setup but before the Pre-Autonomous, you have the option to write and/or include functions. Functions are programmed only once at the top, but you can call it within your Autonomous whenever you need to, this makes programming A LOT easier, and cleaner!.Click image to enlarge.
Configuring/Resetting Sensors: When programming an autonomous, you want it to be as accurate as possible, and to do so, adding a couple sensors will help A LOT! Programming these sensors can be difficult, but setting them up, is extremely simple! Once you have setup your sensor in the Motor and Sensor Setup, there is not much you have to do to configure them: Setting up a gyroscope: 1. Make sure what you are going to type is in the Pre-Autonomous loop 3. Type the following: SensorValue = SensorNone; Add the name of your gyroscope between the '.
Do not forget the semicolon! Type the following: SensorValue = SensorGyro; Add the name of your gyroscope between the '. Do not forget the semicolon! Type the following: SensorValue = 0; Add the name of your gyroscope between the '. Do not forget the semicolon! In these 3 lines of code, 'SensorValue', is the way of telling the sensor what you want the value to be.
Setting the sensor as 'sensorNone' tells the cortex that the sensor is non-existent, then telling it that the sensor is 'sensorGyro', tells the cortex that the sensor is actually a gyroscope. This has just reset the gyroscope! When you are setting the sensor as '0', you are telling the gyroscope that the current degree is '0', so when you want it to turn 90 degrees, the value is exact. Setting up other sensors: Setting up other sensors is the same thing as setting up a gyro, however, instead of 'sensorGyro', it will be the sensor that you chose. Here are some sensor reset commands for the following: Ultrasonic (Inch): SensorValue = sensorNone; SensorValue = sensorSONARPinginch; //Replace 'inch' with cm or mm, depending on the measurements you want. SensorValue = 0; Potentiometer: SensorValue = sensorNone; SensorValue = sensorPotentiometer; SensorValue = 0; I2C QuadEncoder: SensorValue = sensorNone; SensorValue = sensorQuadEncoderOnI2CPort; SensorValue = 0; Pneumatics: SensorValue = sensorNone; SensorValuepneuOut1 = sensorDigitalOut; SensorValue = 0; // 0 is neutral or closed state, change to 1 if starting should be open If there are any sensors that I missed that you need, the RobotC forums are an excellent source, but this is pretty self explanatory.
We just ran into an interesting problem we can't seem to figure out. Keep in mind everything was working perfectly up until this afternoon. We downloaded a modkit programming program to the brain and it ran fine. We then downloaded a robotC driver teleop program and now we have no teleop mode. Under the 'teleop' section on the brain there is no program even though we downloaded it and have used it for the past month. We were trying out modkit to see what it could do but so far it has given us problems.
ALSO, we cannot get the remote and brain to connect at all right now. We have even tried a new cortex. Not sure what's going on. What have we done?
T shirt iron on programs to. Re-install all firmware to controller and brain 2. Un-install modkit from the computer 3. Create new robotC file and try downloading that to the brain 4. Switch Radio's on the cortex and remote. Re-started everything multiple times. Please let me know ASAP.
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Hi Jesse, Could you answer these questions to help us diagnose? 1) Is the controller definitely paired with the Brain?
Download Robotc Vex Iq
2) When you have the controller switched on, is the signal indicator on the Brain 'searching' or does it show a steady signal? 3) Can you confirm that you are downloading your ROBOTC program as a Teleop program? Under the Robot - VEX IQ Controller Mode menus you have selected Teleop) 4) If you try to download the program with the controller switched off, does ROBOTC bring up a message saying that a controller is required? It should do. 5) Does it work when the controller is tethered to the Brain via an Ethernet cable?
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