Economy robot single-layer / double-layer wooden tank chassis TT motor 3-9v tracked intelligent car chassis SN8400 SN8500

There are two versions of this product:
One is single layer
One is double

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
 
Technical Parameters:
Weight: 405g
Single-layer chassis size: 203 x155 x63mm
Double chassis size: 203 * 155 * 98
Voltage: 3-9v
Motor reduction ratio: 48: 1
Motor cable length: 15cm
Track width: 4.5cm
Track material: hard plastic

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 (note that both single and double layers need to be assembled by themselves)