[Lichuang Development Board] Smart smart car

1. Function introduction:
(1) Four-wheel drive vehicle with four driving forces, capable of forward, backward, left turn, and right turn by remote control.
(2) Bluetooth remote control, install Bluetooth APP on your mobile phone for control.
(3) Ultrasonic obstacle avoidance, it will automatically avoid obstacles when encountering them.
(4) Infrared tracking can automatically drive along the designated black lines.
(5) Power detection. If the battery power is lower than a certain value, an alarm will appear.
(6) Wireless remote control, 2.4G wireless module is reserved, which can be used with corresponding handle remote control.
(7) OLED screen, display status information through the 0.96-inch OLED screen.
(8) PS2 controller, used with PS2 controller for remote control.
(9) Voice control, use voice to interact with the car, control the movement of the car, broadcast temperature and humidity, etc.
(10) Play music, connect speakers, and play audio.
Appearance: Pays homage to the cartoons "Boy" and "Iron Armored Treasure", with 3D printed shell and two-dimensional painting.
 
2. Schematic description
    Based on the official smart car of Lichuang development board:
(1) Replace the active buzzer with an inactive buzzer;
(2) Add a 0.96-inch OLED screen display module;
(3) Add PS2 controller receiver interface has been added;
(4) LU-ASR01 voice module + DHT11 temperature and humidity sensor has been added;
 
3. PCB design instructions
(1) The layout of components is as shown in the figure and is arranged neatly.
(2) When connecting wires, pay attention to making the power cord thicker.
4. Key program descriptions:
Modular programming, each function driver package is organized, configuration parameters are modified in the .h header file, and can be easily called in the main function.
5. Physical display
 
without casing:
 
 
with casing:
 
 
See attachment for demonstration video or Station B: [Lichuang Development Board] Smart Smart Car https://b23.tv/nbupriq