10 PCS SIM808 Module GSM GPRS GPS Development Board IPX SMA with GPS Antenna for Arduino Raspberry Pi Support 2G 3G 4G SIM Card

Description:

1. Preparation:
SIM808 SHIELD
DC9V adapter
USB-TTL module or other tools.
PC software
2. Hardware configurations
2.1 Connect the USB-TTL to the UART interface
USB-TTL SIM808
TXD RXD
RXD TXD
GND GND
2.2 Insert the valid SIM card to the SIMCARD holder.
2.3 Connect the GPS antenna and GSM antenna to the board
Connect the power adapter to the DC044 Interface
2.4 Change the switch