//Design a 4 - layer PCB for a GPS vehicle tracker with the following specifications:
// Board Specifications:
- //Size **: 72mm x 73mm(rectangular with r R = 3mm)
- //Layers **: 4 layers(Signal - GND - Power - Signal)
- // Board thickness **: 1.6mm
- ** Copper thickness **: 1oz(35µm)
- ** Surface finish **: HASL Lead - free
- ** Solder mask **: Black
- ** Silkscreen **: White
// Main Components:
// 1. Microcontroller
- ESP32 - WROOM - 32D ** module
- Place in center of board
- Keep away from antennas by at least 15mm
- Add 10uF and 0.1uF decoupling capacitors near power pins
//2. Power Management
-// Input **: 6 - 30V DC automotive power