These numbers can be programmed so that the robot can react to certain situations without the help of the driver. Sensors provide the programmer with the ability to have the robot see or touch something by returning numbers to the microcontroller. Motors come in 2 distinct flavors: the 269 (shown to the left) and the 393 (provides 60% more power than a 269). They can be programmed to spin forwards and backwards at a particular percentage of their maximum power (and thus a particular rate) by being assigned a number from -127 to 127 (0 is stopped, -127 is reversed at full power and 127 is forwards at full power). Speaker Port: Used to plug in the VEX speaker (see page ) 2Ĥ The Basics Continued: The Stuff You re Plugging In and How It Works 1.

Digital Ports: Digital ports are for sensors that collect actual numerical data and then send that data to the microcontroller. Analog Ports: Analog ports are for sensors that simply return a voltage that is interpreted by the microcontroller and turned into a numerical value to be used in programming. Note: VEX decided that motor ports 1 and 10 are special, so motor controllers are not needed for those two ports. If you re using a two-wire motor, make sure you re using a motor controller. Motor Ports: Motor ports are, quite simply, where motors are plugged in. Analog Ports Used with VEX LCD Screen Digital Ports Speaker Port Motor Ports 1. If you can, it s better to label your motors and sensors with a piece of masking tape so you re not trying to follow wires later. Encourage them to use text, videos, images, sketchnotes, or another creative medium.3 The Basics: Plugs and Wires In programming with VEX, it s pretty important to know exactly what you re programming and where it s plugged in on the microcontroller before you start. Displaying an image of a light bulb on the EV3 Brick DisplayĪllow the students to select the tool(s) they find most appropriate for capturing and sharing their pseudocode.Students can use various methods to simulate the headlights, such as: Have the students write a program using the Color Sensor in Compare Ambient Light Intensity mode to simulate automatic headlights. – Reflected Light Intensity, which measures the light from the Color Sensor that is reflected off of a nearby surface back to the sensor – Ambient Light Intensity, which detects light levels – Color, which detects LEGO ® system colors Introduce the Color Sensor and demonstrate to the students that it has three modes: Have the students begin a new project in the EV3 programming environment. Are the wires correctly connected from the Color Sensor to 3?.Are the wires correctly connected from the motors to ports B and C?.Have the students perform the following building check before they program their robots:

Robotc ev3 mindstorm torrent