qoistoochee128

【Smart Car】Smart remote control car

Overview

This board is both the control board and the bottom plate of the car. The rectangular groove and the grooves on the sides are used to fix the motor. When the front and rear wheels are mounted on the motor, half of them will be outside the board. The cross-shaped slot is used to install the speed code. Next to the plate The two small holes are used to install the speed measurement module. The microcontroller has reserved 4 IO ports to collect feedback signals from the speed measurement module. The motor drive part also has soldering pads, which can be soldered directly to the motor through wires. ~~~~ The whole device is powered by a 7.4V lithium battery, and a 5V charger can be used to charge its two batteries in a balanced manner. Three groups of infrared obstacle avoidance. Low battery voltage detection, reminding charging through buzzer. A serial port is reserved, and the car can be controlled remotely via Bluetooth on the mobile phone.

Now only the remote control part has been implemented. The mobile phone software interface is as shown below. The Bluetooth debugger is used. There is a problem with obstacle avoidance and needs to be adjusted.

Speed measurement is difficult to implement due to flaws in the hardware design.

Design Files

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Update:2025-06-23 10:52:21

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