With L298N Driver Module, Dual-channel H-bridge driver working mode creates higher working efficiency; L298N as main chip, which can drive one 2-phase stepper motor, one 4-phase stepper motor or two DC motors
With SR04 sonic sensor distance module, using IO trigger for at least 10us high level signal
It can send eight 40 kHz and detect whether there is any pulse signal back. If it back, a high level signal will be outputed by IO, and the duration of the signal is the time from sending sonic to returning
With 4 battery compartments(battery not included), convenient for the whole power system, and provide with a switch, easy to start-stop
Easy to Install The entire mechanical structure is simple; Good gift for your kids