Basics: Project 053k SIM808 GSM GPRS GPS Bluetooth evolution board (EVB-V3.2) - LED control by SMS at Acoptex.com / ACOPTEX.COM
SIM808 Module GSM GPRS GPS Development Board IPX SMA with GPS Antenna Raspberry Pi Support 2G 3G 4G SIM Card|development board|gsm gprssma sma - AliExpress