Product Description:
The SIM800A Quad-Band GSM/GPRS Module with RS232 Interface is a complete Quad-Band GSM/GPRS solution in an LGA(Land grid array) type that can be embedded in the customer applications. SIM800A supports Quad-band 850/900/1800/1900 MHz. It can transmit Voice, SMS, and data information with low power consumption.
It can fit into the slim and compact demands of custom design. Featuring Embedded AT commands, it allows total cost savings and fast time-to-market for customer applications.
The SIM800A modem has a SIM800A GSM chip and RS232 interface while enabling easy connection with the computer or laptop using the USB to the Serial connector or to the microcontroller using the RS232 to TTL converter. Once connected to the USB or RS232 connector, the correct COM Port needs to be selected via the Device Manager.
Putty or any other terminal software can be used to open a connection to that COM port at 9600 baud rate, which is the default baud rate of this modem. Once a serial connection is open through the computer or microcontroller, AT commands can be sent to this modem. After sending AT commands, the modem will respond with the appropriate answer, eg. "OK"
Module applications
- remote monitoring
- remote intelligent meter reading
- intelligent home
- automotive equipment
- other remote communication equipment
Features
- GSM / GPRS module / development board / shield based on GPRS A6
- Supports GSM / Dual-band GPRS, available for remote GPRS and SMS data transmission
- Compact size and low current consumption
- With energy saving technique, current consumption is as low as 5mA (sleep mode)
- Communicates with the microcontroller through the UART port, supports the command including GSM 07.07, GSM 07.05, and Ai-Thinker Enhanced AT Commands
- Working frequency: four-band network, 850 / 900 /1800 / 1900MHz
- Operating voltage: 4.8-9VDC (Supply power of the on-board regulator circuit for the A6 module)
- Working current: 2A maximum
- Current Sleep: 5mA
- On-board Micro SIM card holder can install Micro SIM card
- Integrated micro USB interface for external power supply
- Communication interface: pu serial TTL / RS232 serial port
- Baud rate: 115200 bps and can also be configured using the AT command
- Logical interface voltage: 3.3V
- Make and answer phone calls using earphones and an electret microphone
- Send and receive SMS messages
- Send and receive GPRS data (TCP / IP, HTTP, etc.)
- Pinhole: 2.54 mm
- Integrated antenna interface: SMA and IPX
- Dimensions: 100 x 53 x 15 mm
Antenna
- Suitable for SIM800L GSM / Arduino SIM900 A6 GPRS Shield modules
- Frequency: 780MHz to 960MHz, 1710MHz to 2170MHz
- Antenna Gain: +2.0 ± 0.7 dBi at 880 MHz, +2.0 ± 0.7 dBi at 1800 MHz
- SWR <= 2.0 @ 2100 MHz ~ 2500 MHz
- Output impedance: 50 Ohm
- Antenna interface: SMA
