3-Wire Devices#

3-Wire devices connect to the three-pin ports on the V5 Brain or on a 3-Wire Expander. These devices communicate using simple analog or digital signals.

Sensors

  • Accelerometer - Measures acceleration and tilt along multiple axes.

  • Bumper Switch - Detects collisions and contact with a spring-loaded switch.

  • Encoder - Measures the rotational position and direction of a shaft.

  • Gyro Sensor - Measures rotation rate to track turns and heading.

  • Light Sensor - Measures ambient light intensity.

  • Limit Switch - Detects contact at the end of a mechanism’s range of motion.

  • Line Tracker - Detects light reflection differences for line following.

  • Potentiometer - Measures the angular position of a shaft, up to 270 degrees.

  • Range Finder - Measures distance to objects using ultrasonic sound waves.

Motors and Actuators

  • Motor 393 - A legacy DC motor from VEX EDR systems.

  • Servo Motor - Rotates a mechanism to a specific angle and holds it.

LED Indicator

Digital I/O

  • Digital In - Reads high/low signals from external devices.

  • Digital Out - Sends high/low signals to control external devices.