| Usage: | Server |
|---|---|
| Type: | Wireless |
| Support Network: | Ethernet |
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SIM808 new generation of GSM, GPRS, GPS, Bluetooth (optional)
SIM808 is a quad-band GSM / GPRS module, castellation hole package. Its stable performance, the appearance of small, cost-effective and can meet various needs of customers.
A, SIM808 Introduction
SIM808 operating frequency of GSM / GPRS 850/900/1800 / 1900MHz, low power consumption can be implemented to transmit voice, SMS and data information.
Key Features:
Four frequency 850/900/1800 / 1900MHz
SMS
FTP / HTTP, embedded TCP / UDP protocol
DTMF detection, Bluetooth 3.0 (optional), USB Interface
Two, SIM808 hardware description
5V power supply voltage input interface support, 5V voltage noted, the power adapter to provide current to less than 2A; lithium battery support (3.6-4.2V)
The communication interface of serial TTL level. Fully compatible with Arduino, while the other is compatible with 5V, 3.3V, 2.85V system.
May be selected using the hardware serial ports (D0 D1) or software serial port (D7 D8) through a jumper.
Support MICRO SIMCARD.
Support four headphone jack (I type).
Supported through USB or serial port SIM800C firmware update.
Development board can be upgraded with Bluetooth version.
TVS tube board in various ways, SIM cards protection IC, tantalum capacitors, two 100UF allowing the board performance and stability.
Two, SIM808 shield Software
TTL level serial communication with external systems, the default may communicate directly with a 5V system, without direct level matching. And 3.3V systems, communication systems when 2.85V, need to do a bit of hardware processing. We will do a detailed description in the user manual.
The communication interface (command) to the AT command, the control module is implemented via AT commands function is completely implemented, such as: a call control module using ATD *******; (* of their phone number). We will provide a complete AT command set.
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