Pololu Multi-Hub Wheel w/Inserts for 3mm/4mm Shafts - 80x10mm Black (2-Pack) Brand_BitPLATES 4x AA Alkaline Battery -

4x AA Alkaline Battery - 1500 mAh

With 16M FLASH memory for larger program size

FOV on 1/2" sensor(D/H/V): 185°/185°/140°

The HAT attaches to the Raspberry Pi via the 40-pin header and included USB PCB adapter

Pololu Multi-Hub Wheel w/Inserts for 3mm/4mm Shafts - 80x10mm Black (2-Pack) Brand_BitPLATES 4x AA Alkaline Battery -These versatile black plastic wheels have silicone tires and measure 80mm in diameter. What makes them special is the included set of interchangeable collets that can be inserted into the wheel to firmly grab four different shaft types: 3mm D 3mm round 4mm D 4mm round The collet inserts start with a comfortably loose fit on their intended shafts, and unlike simple press fit wheels, their grip on the shaft gets progressively tighter as they are