iPad2 WiFi版外接蓝牙GPS模块导航教程-iPad2 WiFi version of the external Bluetooth GPS navigation module tutorial

UB680的技术规格书，UB680是GPS和GPRS二合一模块，可用于车载监控行业的快速开发。-UB680 technical specification, UB680 is GPS and GPRS epoxy resin module, can be used for vehicle monitoring industry rapid development.

sim808 硬件设计手册，sim808 是集gprs和gps于一体的，2G模块，功能稳定-sim808 hardware design