Economy robot double-layer wooden tank chassis TT motor 3-9v tracked intelligent car chassis SN8500

SN8500 Economy robot double-layer wooden tank chassis TT motor 3-9v tracked intelligent car chassis manual: https://www.makerbuying.com/18324 Features: Building blocks toy 3-9v wide range voltage TT motor has strong versatility Affordable Can mount a variety of circuit boards Motor welding place is glued and fixed for easy reuse Hole introduction: arduino uno, L298N, two 18650 battery boxes, sg90 steering gear, mg90s steering gear, our 4th and 5th battery box, etc. Assembly instructions: We send a small screwdriver, which can be assembled, and the motor wire has been welded. Shipping list: A set of tank chassis parts