SIM900A GSM GPRS Wireless Extension Module with Antenna-V4.0
This module power requirement 5VPower supply initial commissioning computercomputerUSB poweredMeet the requirements. Because we added a large capacitance 1000UF.Recommended time data transmission over large electricity 1A DC, TTL level serial port compatible adaptive 3.3V, and 5V microcontroller. It can be directly connected to the microcontroller. Standby around 80MA, you may be disposed about the sleep state 10MA low power consumption. Computer debugging USB – 232 and USB – TTL can, according to their accessories may be. Support SMS, data, multimedia, Internet, and so on. Reset pin lead, maybe implemented on-site unattended remote reset with function DTMF remote control function. The biggest advantage is the retention module 232, in learning or development can monitor the implementation of the 51 low-end microcontroller module and instruction to more quickly identify the cause, saving development time, and learning.
Features/Specs:
- Single supply voltage: 3.4V – 4.5V
- Pick current: 1A
- Power saving mode: Typical power consumption in SLEEP mode is 1.5mA
- Frequency bands: SIM900A Dual-band: EGSM900, DCS1800. The SIM900A can search the two frequency bands automatically. The frequency bands also can be set by AT command.
- GSM class: Small MS
- GPRS connectivity:GPRS multi-slot class 10 (default) , GPRS multi-slot class 8 (option)
- Transmitting power: Class 4 (2W) at EGSM 900, Class 1 (1W) at DCS 1800
- Operating Temperature: -30ºC to +80ºC
- Storage Temperature: -5ºC to +90ºC
- DATA GPRS: download transfer max is 85.6KBps, Upload transfer max 42.8KBps
- Supports CSD, USSD, SMS, FAX
- Supports MIC and Audio Input
- Speaker Input
- Features keypad interface
- Features display interface
- Features Real-Time Clock
- Supports UART interface
- Supports a single SIM card
- Firmware upgrade by debug port
- Communication by using AT commands
- Board Size:
- Length: 49mm
- Width: 47mm
- Height: 11mm
- Weight: 28gm
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