This smart car is developed based on the Type C development board, equipped with the L9110S motor drive module, which can realize the ultrasonic obstacle avoidance function.In addition, the output interface of the L9110S motor drive module uses wiring terminals to facilitate connection to the drive motor.The input terminal of the driver board can be connected to the pins on the expansion board through cables.The smart car adopts a solderless installation design. Use copper posts and screws to fix the structure between the parts.The circuit connection between each module adopts wire connection, which is simple and convenient.The trolley uses 65mm plastic wheels and runs smoothly. We use a more powerful DC geared motor.colour: blackMaterial: ABS + electronic componentsSize: 18x18x6cmPackage Contents:1 set x driving robot DIY kitOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.