4977 Pololu

Category: Frames and Chassis, Description: Robot: line follower; 3pi+; uP: ATmega32U4; IC: DRV8838; Trans: 15: 1, Type of Robot: line follower, Manufacturer series: 3pi+, Processor: ATmega32U4, Integrated circuit: DRV8838, Caution!: Assembly (including soldering) is required.; This version is difficult to control and fast enough to damage itself from impacts, so it is only recommended for advanced users. A spare 15:1 gearbox is included., Gear: 15:1, Dimensions: 97x96x36mm.