You can use the Device Info on the VEX IQ (1st gen) Brain to view data for a connected motor or sensor.
Use the X Button to navigate to the Settings menu.
Use the Up and Down buttons on the Brain to select Device Info to open the Device Menu. The Device Menu screen displays information about the device that is connected to that port. There are 12 ports on the IQ (1st gen) Brain.
If there is more than one data type reported by the connected device, you can use the Check button to scroll through the data options.
In this example image, the Motor can show speed, angle, or turns.