This robot car has many exciting features. The robot car uses infrared sensors to track a line and ultrasound sensors to object track or object avoid. The car can also be controlled (forward, backward, rotate clockwise, rotate counterclockwise) using an infrared remote control or Bluetooth from a computer or app downloaded onto a phone.
All that said, this is an older kit from Keyestudio, and I do not think this kit is as good as their newer kits. The build instructions sometimes combine multiple steps into one picture, and occasionally, the steps are in the wrong order. In addition, the Arduino code frequently has errors. Overall, the kit needs a lot of troubleshooting. This troubleshooting is relatively easy for someone with Arduino experience. A novice Arduino user will probably not be able to build and use the kit.
Features
1.Multi-purpose function: Obstacle avoidance, following, IR remote control, Bluetooth control, confined with a circle, gravity control as well as facial emoticons display.
2.Simple assembly: No soldering circuit required, simple assembly.
3.Sturdy construction: 4WD construction, 4 premium motors and wheels.
4.High extension: It can expand other sensors and modules via a motor driver expansion board
5.Multiple controls: IR remote control, App control(iOS and Android system)
6.Basic programming：C language code of Arduino IDE.