3pi Expansion Kit with Cutouts - Schwarz hub-motoren or reliable small obstacle detection

or reliable small obstacle detection is required

42kHz ultrasonic sensor

Mechanical drawing for Pololu universal aluminum mounting hub for 6mm shaft

or to make a robot that can identify and return to a home base

The XL MaxSonar WR sensors are factory calibrated to adjust to tight sensor beam patterns and provide reliable detection ranges over long distances

3pi Expansion Kit with Cutouts - Schwarz hub-motoren or reliable small obstacle detectionThis kit includes a round printed circuit board (PCB) with holes spaced on a 0. 100" grid, one extended 27 male header, two extended 12 male headers, one 27 female header, two 12 female headers, four 7 8" nylon spacers, four 1 1 4" screws, and four nuts. The expansion PCB matches diameter of the 3pi chassis and mounts just above the tops of the wheels using the four included screws and spacers. Once assembled, the PCB has electrical connections to the