Sensors

The EV3 has multiple sensors such as:

  • touch sensor
  • color sensor
  • light sensor
  • gyro sensor
  • ultrasonic sensor

Touch sensor

Each time you press the touch sensor, the eyes with the hearts appear and a sound is played.

../_images/touch1.png

You can test his inside the simulator. When you click with the mouse on the touch sensor icon, the image and the sound appear.

../_images/touch1s.png

Connect the touch sensor to port 1. When you press the touch sensor, a heart is displayed. When you release the touch sensor, the screen is cleared.

../_images/sensor1.png

Colour sensor

Connect the color sensor to port 3. When you place a blue LEGO brick in front of the sensor, it says blue. When you place a red LEGO brick in front of the sensor, it says red.

../_images/sensor2.png

Show values on the screen

You can use a forever loop to write the sensor values to the screen.

../_images/sensor3.png

In the simulation in the navigator window you can set different values for the sensor and display the values on the first three lines of the screen.

../_images/sensor3s.png