Simduino - Uno + SIM808 GSM & GPS + Antennas

When SIM808 “melts into” the Arduino, what wonderful things will happen? Look at the latest Elecrow SIMduino. This small board combines Arduino uno and sim808 module. It will save more cost and space for your project and easier to build other modules. It does not only need to be powered by a DC power supply, it has been designed with a battery interface for it, you can also use a 3.7V lithium battery to power it. The SIM808 module can communicate with the Arduino via software serial port(PD7 and PD8) and hardware serial port(PD0 and PD1).

Quick Spec

  • Microcontroller: ATmega328
  • Operating Voltage: 5V
  • Input Voltage (recommended): 3.3-5V
  • Input Voltage (limits): <5V
  • Digital I/O Pins: 14 (of which 6 Pins provide PWM output)
  • Analog Input Pins: 8
  • DC Current per I/O Pin: 40mA
  • DC Current for 3.3V Pin: 50mA
  • Flash Memory: 32KB (ATmega328) of which 0.5KB used by bootloader
  • SRAM: 2KB (ATmega328)
  • EEPROM: 1KB (ATmega328)
  • Clock Speed: 16 MHz
  • UNO+SIM808, TWO in one board
  • Flat DC Jack
  • Inherits all of Arduino Uno's features
  • Compatible to Uno's pin layout, screw hole and dimensions
  • Evolved with SMD components
  • Quad-band 850/900/1800/1900MHz
  • GPRS mobile station class B
  • Controlled by AT Command (3GPP TS 27.007, 27.005 and SIMCOM enhanced AT Commands)
  • Integrated GPS/CNSS and supports A-GPS
  • Low power consumption, 1mA in sleep mode
  • Supports GPS NMEA protocol
  • Standard Micro SIM Card
  • GPRS multi-slot class12 connectivity: max. 85.6kbps(down-load/up-load)
  • Indicator LEDs for power and network connectivity
  • uFL connection for external passive GPS & external GSM antenna
  • Any standard 2G SIM slides into a secure connector
  • Standard 4-pole TRRS headphone jack. Use any 'Android' or 'iPhone'-compatible headset with mic

Board Layout


Example - Sending A SMS

#include <SoftwareSerial.h>

SoftwareSerial mySerial(7, 8);

void setup()
mySerial.begin(19200);  //Default serial port setting for the GPRS modem is 19200bps 8-N-1
delay(1000);                    //Wait for a second while the modem sends an "OK"
mySerial.print("AT+CMGF=1\r");    //Because we want to send the SMS in text mode

//mySerial.print("AT+CSCA=\"+919032055002\"\r");  //Setting for the SMS Message center number,  
//delay(1000);                                  //uncomment only if required and replace with
//the message center number obtained from
//your GSM service provider.
//Note that when specifying a string of characters
// " is entered as \"

mySerial.print("AT+CMGS=\"+9184460xxxx\"\r");    //Start accepting the text for the message
//to be sent to the number specified.
//Replace this number with the target mobile number.
mySerial.print("Hello World\r");   //The text for the message
mySerial.write(0x1A);  //Equivalent to sending Ctrl+Z 

void loop()
//We just want to send the SMS only once, so there is nothing in this loop.
//If we put the code for SMS here, it will be sent again and again and cost us a lot.



Shipping List

  • 1 x SIMduino
  • 1 x GPS Antenna
  • 1 x GSM Antenna

SIMduino - UNO + SIM808 GSM & GPS

  • Brand: Generic
  • Product Code: SIMDUINO
  • Product Status : Active
  • Stock

    Warehouse Stock Status Location
    Centurion Limited Stock C127
    Stellenbosch Limited Stock 856
    Bulk Location No Stock

    We ship free of charge between branches to complete your order.

  • R699.00 (Inc Tax: R803.85)

Tags: sim808, arduino, uno, gps, fsm, battery