What does a line follower do vex?

The VEX Line Tracking Sensor allows the robot to tell objects or surfaces apart based on how dark or light they are. It shines a beam of infrared light out onto the object, and measures how much light is reflected back. The Line Tracking Sensor is an analog sensor, and it returns values in the range of 0 to 4095.

How do you use a VEX line follower?

Open the Motors and Sensors Setup menu, and go to the Analog Sensors tab. Select Robot > Motors and Sensors Setup to open the Motors and Sensors Setup menu. Click the “VEX 2.0 Analog Sensors 1-8” tab on the Motors and Sensors Setup menu. Use the dropdown list to make “Line Follower” the sensor type.

What does the VEX line tracker sensor emit?

A Line Tracker mostly consists of an infrared light sensor and an infrared LED. It functions by illuminating a surface with infrared light; the sensor then picks up the reflected infrared radiation and, based on its intensity, determines the reflectivity of the surface in question.

How do line tracker sensors work?

The line tracking sensor works by detecting reflected light coming from its own infrared LED and by measuring the amount of reflected infrared light, it can detect transitions from light to dark (lines) or even objects directly in front of it.

How does a VEX light sensor work?

The Light Sensor uses a photocell that allows your robot to detect and react to light. With the light sensor, you can program a whole new range of capabilities to your robot. A Programming Kit is needed to change the program in the VEX Controller.

Which sensor is using a line follower?

In case of a line follower robot we use IR transmitters and receivers also called photodiodes. They are used for sending and receiving light. IR transmits infrared lights.

How do I increase my IR range?

To double the range from 5 metres to 10 metres, you need to increase the transmitted power four times. If you wish to realise a highly directional IR beam (very narrow beam), you can suitably use an IR laser pointer as the IR signal source. The laser pointer is readily available in the market.

What are disadvantages of PIR sensor?

Drawbacks or disadvantages of PIR sensor ➨They have lower sensitivity and less coverage compare to microwave sensors. ➨It does not operate greater than 35 degree C. ➨It works effectively in LOS (Line of Sight) and will have problems in the corner regions. ➨It is insensitive to very slow motion of the objects.

Do PIR sensors work in daylight?

Their photocell technology detects when the sunlight has dimmed and switches on the light. Some lights are always-on during lower light, while others include the PIR motion sensor. So, you only have the light switching on when it’s dark and when motion is detected.