1. The core master chip
STM32F103C8T6 X1
2. Positioning module
Dual positioning module: GPS Beidou ATGM336H5N X1
3. Wireless transmission module
NRF24L01 X2
4. Turn hardware to host computer
TTL to serial port module X1
5. Host computer
C# framework X1
6、API
Baidu Map API X1