SIM800 V4.72 Wireless Dual Band GSM GPRS Module MIC Voice SMA Antenna, Frequency: 900/1800Mhz

Description:

SIM800 development board module featuring: GSM, GPRS, MMS, SMS and Audio capabilities!

Features:

• Serial interface: TTL/USART serial support.
• Antenna circuit: Three common antenna interfaces (SMA interface only soldered)
• Two way power interface: DC IN 5 v DC power supply OR 3.5-4.2 V power supply, suitable for lithium battery power supply applications.
• Audio interface: increased by 3.5 MM audio interface, easily implement voice calls, voice broadcast, etc.
• SIM booth: new mainstream type metal MICRO thrust booth, strong and durable.
• LED indicator light: onboard two LED indicators. Allows you to monitor module working condition.
• PCB show: each interface screen printing mark, convenient for secondary development, the design fully follow SIM800 / A hardware design manual.
• Antenna Included!

Specifications

• Support 3.3V / 5V TTL level control, convenient and a variety of commonly used single-chip, such as ARDUINO / 51 / STM32 and other communications
• The module lists TX / RX / GND separately, and is convenient for use with a standard serial interface, can be easily controlled by PC or debugging
• With headphone and microphone interface, can easily test the GSM voice call function
• With SIM card electrostatic protection chip, plug the SIM card when the static electricity generated protection
• All available SIM800 pins are available for easy development of various SIM800 applications
• With RTC backup battery
• With NET_STA indicator, easy to watch the current SIM800 state

Pin Assignment

• DCIN: 5V DC power input. Used to power development board
• GND: systematic
• 3V9: input power supply range: 3.5-4.2V
• VDD: TTL serial port used to match the output of the high voltage value
• RXD: SIM800 data receiving end, you need to contact the sender of the external system
• TXD: SIM800 data transmitting side, the receiving side needs to access external systems
• GND: GND with other systems without any distinction
• RST: SIM800 reset, active low effective duration 600MS

Important Note: Do not exceed the voltage USE only DCIN or 3V9 to power the module

Package Includes:

• 1 x SIM800 Board
• 1x Antenna

Uses AT Commands