Features:
Operation 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
2.6 Press the POWKEY button for 2 second, the SIM808 module will work and the other 3 LEDs will light.
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