Description
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SIM808 New generation GSM, GPRS, GPS, Bluetooth-compatible (optional)
SIM808 is a four frequency GSM/GPRS module for castle hole package. Its stable performance, compact appearance, cost-effective.
Introduction to SIM808:
SIM808 works at GSM/GPRS 850/900/1800/1900MHz and can transmit voice, SMS and data information with low power consumption.
Main features:
Four-band 850/900/1800/1900MHz
Short message
FTP/HTTP, the embedded TCP/UDP protocol
DTMF detection, Bluetooth-compatible 3.0(optional), USB interface
Aruduino SIM808 shield Hardware Description:
The power port supports 5-12V voltage input. When the voltage is 5-9V, the power adapter can provide at least 2A current. Support lithium battery (3.6-4.2V)
The communication interface is TTL level serial port. Fully compatible with Arduino and compatible with other 5V, 3.3V, 2.85V systems.
You can select the hardware serial port (D0 D1) or software serial port (D7 D8) through the jumper cap.
MICRO SIMCARD is supported.
Supports four headphone ports (Type I).
The SIM800C firmware can be updated using a USB or serial port.
Upgradeable to development board with Bluetooth-compatible version.
Onboard TVS tube, SIM card protection IC, two 100UF tantalum capacitors and many other ways to make the development board stable performance.
Aruduino SIM808 shield:
By default, you can directly communicate with 5V systems through the TTL level serial port without level matching. When communicating with a 3.3V system or a 2.85V system, you need to do some hardware processing. We'll give you more details in the user's manual.
The communication interface (command) is AT instruction, that is, the function of the control module is completely realized by AT instruction, such as: the control module dials the phone using ATD*******; (* is the phone number of the other party). We will provide the complete AT instruction set.
In addition, we will provide some common functions of the process, C program
