The robot used four industrial grade ultrasonic sensors provided by a sponsor, SICK. These were used to align the robot with the field boundaries during autonomous operation
2018-2019 FTC Rover Ruckus Challenge, NJ State Qualifier
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2019 FTC Robot, Raven

For 2019 the team decided to go with a foam/plywood carbon fiber laminate construction. The goal was to suck up small balls and blocks, sort them, then deposit them into bins about 2 feet in the air. The robot would then have to lift itself off the ground attached to latches on the goal.

Lander Holsinger
FIRST FTC7244 Out of the Box Robotics Melbourne, FL