Connecting a 3-Wire Device to the V5 Brain – VEX Library

Gather the required components

V5 Robot Brain, 3-Wire Potentiometer device, 3-Wire Ultrasonic Range Finder device, and a 3-Wire extension cable are shown together.

You will need the following items:

a V5 Robot Brain
a 3-Wire device

Locate the 3-Wire Ports

V5 Brain with its eight 3-Wire ports shown. These ports are labeled alphabetically from A to H.

The 3-Wire Ports are located on the side of the V5 Brain opposite the side with the battery connection.

The V5 brain has a total of eight 3-Wire ports, labeled A-H, which can all be used as inputs or outputs that can be used with VEX EDR 3-wire legacy sensors and motor controllers.

Connect the 3-Wire device.

V5 3-Wire Potentiometer device is shown connected to one of the V5 Brain's 3-Wire ports.

Insert the 3-Wire cable(s) into the desired port(s). The ports are keyed so you can only plug the cable in one way.

If you are using 3-Wire extensions, make sure the black wires are always connected to prevent connecting the device incorrectly.