SIM808 GSM/GPRS/GPS Arduino IOT Board

This is an Arduino Leonardo with SIM808 GSM/GPRS/GPS. The SIM808 with Leonardo mainboard is the latest Arduino board developed by DFRobot for multi-purpose applications. The onboard SIM808 module includes an integrated quad-band GSM/GPRS and GPS satellite navigation module, and a 4 layer PCB integrates the microcontroller, microphone, headphone jack and GPRS/GPS, giving this board the tiny footprint of a regular credit card! Meanwhile, the board includes a sleep mode feature for extra-low power consumption. And an on-board 3.7V Lipo battery power supply and battery-charging circuit has been integrated into the board, making it ideal for applications such as real-time car tracking, security patrolling and IoT projects. Compared with the existing SIM808 modules on the market, this SIM808 uses the latest version with better stability.

Applications

• GPRS network nodes
• Remote communications
• Satellite positioning
• Real-time car tracking systems
• Security
• Internet of things (IoT)

SPECIFICATION

• AVR Arduino MCU: ATmega32u4 (Bootloader: Leonardo)
• Operating voltage: 5V
• Input Voltage: 5V (USB)/7~23V(Vin)/3.5~4.3V (BAT)
• Low-power consumption: (100mA@7V-GSM mode)
• Digital I/O Pins: 20
• PWM Channels: 7
• Analog Input Pins: 12
• DC Current per I/O Pin: 40 mA
• DC Current for 3.3V Pin: 50 mA
• Flash Memory: 32 KB (of which 4 KB is used by the bootloader)
• SRAM: 2.5 KB
• EEPROM: 1 KB Clock Speed: 16 MHz
• Wireless Module: SIM808 GSM/GPRS/GPS module
• Quad-band 850/900/1800/1900MHz – 2G GSM network
• GPRS multi-slot class 12/10
• GPRS mobile station class B
• Compliant to GSM phase 2/2+
• Class 4 (2 W @ 850/900MHz)
• Class 1 (1 W @ 1800/1900MHz)
• Bluetooth: Compliant with 3.0 + EDR (Not open in this version)
• Time-To-First-Fix
• Cold starts: 30s (typ.)
• Hot starts: 1s (typ.)
• Warm starts: 28s (typ.)
• Accuracy: Horizontal position 2.5m CEP
• Update rate: 5Hz
• Control: AT command (GSM07.07, 07.05 and SIMCom enhanced AT commands)
• Dimension: 73*54mm / 2.87* inches
• Weight: 50g

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