NGS1072 DAT

• D2/D3 or D4/D5 Serial to SIM808
• D6/D7 - Relay
• D8 - SIM800 BOOT
• D13 - PROG LED

hardware Setup

• arduino pro mini 5V/16M
• SIM800 software serial port, selected by SMD jumper: D2 + D3 or D4 + D5
• pull D8 pin to HIGH for at lease 2 seconds, and then LOW to boot SIM800 module
  • SIM800 Network LED should start to link