Review on LAFVIN Smart Robot Car 2WD Chassis Kit with Ultrasonic Module R3 Board: Arduino Compatible DIY Kit for Remote Control Programming by Eric Kim

So many problems with this set. I've built several other robot cars from China so I wasn't expecting it to be very easy to follow the instructions but this one was really bad. There is no clear schematic in the whole set. Instructions. Many of the instructions are for the 4 wheel version of this kit. There are different lessons for IR sensor, wheels, ultrasonic sensor. They reuse the pens in different lessons, so it's impossible for the code for the ultrasonic sensor to work at the same time as the IR. The supplied UNO board did not work. The kit does not include batteries which I knew from the description. The supplied remote control does not contain a battery. The design of the robot is bad. The IR sensor faces forward, so you can only control the robot when it approaches you. I think I'll disassemble it and build something else. I do not recommend. The Elegoo Smart Car was much better.