Arduino car

This simple Arduino robot car consists of only 14 parts, including 4 wheels. The car is powered by simple and cheap parts.parts list:2X TT-motor4X AA battery1X switch1X servo motor1X l293d Arduino shield1X arduino (clone)1X line follower sensora couple of nuts and bolts the nuts are mostly m3 and a few m4s. For the bolts it is largely the same and of length you better take longer ones. If there is a problem you can always let me know in the comments.