Pico 2G Expansion is a QUAD-Band GSM/GPRS/GNSS Expansion designed dedicatedly for Raspberry Pi Pico ^^ Pico 2G Expansion works on the embedded TCP/UDP Protocols with Multi-constellation GNSS receiver support ^^ Low power consumption with inbuilt LED indicators ^^ Bluetooth 3.0 & Serial/USB/SIM868 selection jumpers ^^ The 1.14 -inch LCD includes the ST7789 Driver and SPI Interface, decreasing the amount of IO pins required.