legacy wiki page

  • https://www.electrodragon.com/w/SIM868_Debug
  • https://www.electrodragon.com/w/SIM868

Pin Definitions

  • TXD
  • RXD
  • RTC
  • GND
  • BAT -> direct power supply 4.2V
  • KEY

Antenna Ports

  • BT
  • GSM
  • GPS

Usage:

  • Test can work directly with arduino, use guide please see wiki page.
  • For long term use, for example arduino, simply add extra diode (shipment included) if use 5V power supply.
  • Please look for our "SIM868 Debug" wiki page if you encouter GNSS read problem.

Quick Setup

Functions Setup and Pins
power supply direct 4.2V VBAT
serial communication TXD / RXD
logic shifter level None
serial baudrate 9600
network 2G/GPRS
location GPS
boot mode press-button / mcu-trigger

Note

R1.1 version slightly optimize board layout, all antenna connectors on same side.

Demo video

  • https://x.com/electro_phoenix/status/1002174191238443008
  • https://x.com/electro_phoenix/status/1001089408806797312

ref

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