The GPS Module v2.1 is a high-performance GNSS global positioning module integrating the high-performance AT6668 chip, providing accurate and reliable satellite positioning . This module supports multi-frequency and multi-mode GNSS signal reception and is compatible with multiple satellite navigation systems, including GPS, BD2, BD3, GLONASS, , and OZSS. It enables high-, multi-system joint positioning or single-system positioning, and has excellent anti-interference capabilities. In areas with weak signals, it can quickly acquire more accurate location information. This module comes with an external SMA antenna by default. In addition, a DIP switch allows users to flexibly switch between TX/RX communication pins. Precise time synchronization is achieved through signal output. It is suitable for high- positioning applications such as in-vehicle positioning and navigation, remote monitoring of IoT positioning devices, smart cities, and home and industrial automation. Compared to the previous Module GPS v2.0, this product features optimized interface compatibility with the CoreMP135, and the UART pin selection has been increased from four to five. Color: Black Material: plastic Package Contents: 1*GPS Module 1*Antenna Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.