TC Motherboard - Imitation of Zhuifei - Shaoguan University

Project Overview:
This project is for the TC387 development board. It features independent 5V and 3.3V regulated power supplies. The 5V power supply uses the IT TPS5430DDAR chip, and the 3.3V power supply uses the RT9013-3.3 chip. The main power input uses a MOSFET as a switch to prevent sparking.
Onboard interfaces include Bluetooth module, gyroscope, programming interface, power indicator, one encoder signal interface, brushless motor interface, four buttons, one DIP switch, camera interface, and a five-way button. It is compatible with the matching TC387 core board and can be used in projects such as smart cars. Power
 
Supply Design
: A switch controls the power supply. A MOSFET is added to the main power input to prevent sparking from the switch contacts. Multiple large capacitors are added to prevent voltage drops when the motor is suddenly powered on.
The main board 5V power supply and servo power supply use a DC-DC scheme, ensuring stable output power. The TPS5430DDAR adjustable power supply provides a 3A rated current, sufficient for different output voltages and high output currents. The 3V3 power supply uses an LDO power solution with the RT9013 chip as the power chip. This chip offers stable output, a compact size, simple peripheral circuitry, and convenient PCB design.
Separate grounding is employed to ensure a stable ground for the main control chip.
Download interface: Includes CLK and DIO programming interfaces for the core board.
 
PCB
design: PCB size is within 10*10mm.
Component layout: The layout is divided into high-power and low-signal sections, each using different grounds and connected with 0R for isolation.
Line spacing: High-current sections use large copper areas; power lines are 30mil, signal lines are 10mil.
Copper silkscreen: Power supply, download, peripheral interfaces, and serial port are silkscreened, along with the project name and logo.
Circuit debugging
and soldering: Solder the switch and each power module first, testing after each module. This ensures each module functions correctly and facilitates troubleshooting.
Project
summary:
The layout still has some issues; components are too close together. Some desoldering is difficult.
The layout is somewhat fragmented. The traces aren't very neat.
The soldering is rather ugly; I need more practice.
Some components are obstructed.
 
I'm a university student with limited technical skills; please point out any errors.