Data Sheet
channel@makerfabs.com                                                                                            www.makerfabs.com   
  Interface: I2C/SPI/UART/18*GPIO 
  Arduino compatible 
  Working Temperature: -40  –  85℃ 
  Default baud rate: 115200 
  Size: 40*55mm 
Interface: 
Pins usage on Arduino 
D0 - RX from A6 (Hardware Serial Communication Selected) 
D1 - TX to A6 (Hardware Serial Communication Selected) 
D2 - Unused 
D3 - Unused 
D4 - SD Card CS PIN 
D5 - Unused 
D6 - Unused 
D7 - RX from A6 (Software Serial Communication Selected) 
D8 - TX to A6 (Software Serial Communication Selected) 
①PWR: Power indicate 
②CHG: Charge indicate 
③VBAT: 3.7V Lipo battery connector 
④  CHG: 5V power input, can connect the solar panel 
to charge the lipo battery. 
⑤   Micro  USB:  5V  power  input,  USB  to  serial 
communication 
⑥RESET: Reset button for ATmega328 
⑦  Serial port select:     
D0&D1 hardware serial port 
D7&D8 Software serial port 
⑧GPS: GPS Antenna IPX Interface 
⑨1PPS: GPS Get location indicate 
⑩STA: SIM808 status indicate 
⑪NET: SIM808 Network status indicate 
⑫GSM: GPRS/GSM Antenna IPX Interface 
① Micro SIM Card holder 
②Micro SD Card holder 







