查看“Microduino-GPRS/GSM”的源代码

{{Language | Microduino-GPRS/GSM}}
{| style="width: 800px;"
|-
|
[[File:Microduino-GPRS-rect.jpg|400px|thumb|right|Microduino-USBHOST]]

Microduino-GPRS/GSM module can get Microduino core board connected to the internet and achieve the function of sending and receiving messages when it is just inserted with a SIM card and follows some simple instructions. 

==Features==
*ESD protection;
*Capable of being charged by USB, li-ion or other power supply options;
*Support automatic baud rate detection function;
*Capable of sending AT instructions and data through the serial port;
*Small, cheap, stackable and open;
*Open hardware circuit design and Arduino compatible programming development environment;
*Uniformed Microduino interface standard and rich peripheral modules, capable of having a fast and flexible connection and extension with other modules and sensors in accord with Microduino interface standard;
*Easy to be integrated to pegboards with a 2.45-pitch female header connector interface. 

==Specifications==

Adopt SIM800L module to support four-band GSM/GPRS, whose working band is：GSM850, EGSM900, DCS1800 and PCS1900MHz.

*Electrical characteristics
**Working voltage：3.4V ~4.4V；
**The current consumption is 0.7 mA under the Sleep Mode

*GPRS data
**The maximum data transmission rate of GPRS is 85.6 kbps;；
**Build-in TCP/IP protocol；
**Encoding format：CS-1, CS-2, CS-3 and CS-4；
**Support Unstructured Supplementary Service Data(USSD)

*Serial debugging
**Support standard full-function serial as well as the transmission rate with a range from 1200bps to 115200bps;
**Support serial port multiplexing function corresponding to GSM 07.10 protocol；

*Two Main Compoments:
**SIM800L module
[[file:Microduino-SIM800L-Pinout1.jpg|800px|thumb|center|Microduino-SIM800L-Pinout]]
[[file:Microduino-SIM800L-Pinout2.jpg|800px|thumb|center|Microduino-SIM800L-Pinout]]
**SIM card power and base plant
[[file:Microduino-SIM-Pinout1.jpg|800px|thumb|center|Microduino-SIM-Pinout]]
[[file:Microduino-SIM-Pinout2.jpg|800px|thumb|center|Microduino-SIM-Pinout]]

==Document==
*Eagle PCB： '''[[File:Microduino-GSM.zip]]'''
* Microduino-GSM mudule SIM800L：'''[[File:SIM800L.pdf]]'''
*SIM car power supply and the card base：'''[[File:SIM800L.pdf]]'''

==Development==
You can use GSM library to test, https://github.com/Microduino/Microduino_Tutorials/tree/master/Microduino_Libraries/_03_Microduino_GSM_SIM800L

'''Note：This library only supports Microduino-core.'''

==Application==
Sending short messages through the example program in the library.
===Preparation===
*Hardware：Microduino FT232R, Microduino Core, Microduino GSM, USB cable or lithium battery；
*Software: GSM library, Arduino IDE (version 1.0.3 and higher)；
*Uncompress the zip folder to libraries of Arduino IDE；
*Connect the Microduino FT232R and PC using USB cable to download program and monitor the serial port；
*USB cable or li-ion battery to charge the Microduino GSM module and press the power button for a long time to activate Microduino GSM for about 4 seconds. That the power-on indicator goes on shows a successful start.

===Debugging===
*Open SendSMS test program in the examples；
*After it gets compiled successfully, just select the board "Microduino Core (Atmega328P@16M,5V)" and download directly；
**Open the serial monitor(The serial monitor is set to the format of "Newline" and "Enter"  ), set the baud rate, and the "SMS Messages Sender" will be printed;
**You need to wait for Microduino GSM module reading SIM card about 10 seconds. If that goes well, "GSM initialized" will be displayed and a note will pop up to remind you to input one number.
**After the input, just press the Enter key, it will remind you to write your message.
**Just press the Enter key after the input, the sending process will be displayed and then you can see "COMPLETE". .

==Purchase==

==History==

==Picture==
[[file:Microduino-SIM800L-F.JPG|thumb|600px|center|Microduino-GPRS/GSM Front]]
[[file:Microduino-SIM800L-B.JPG|thumb|600px|center|Microduino-GPRS/GSM Front]]
[[file:Microduino-SHEIL-F.JPG|thumb|600px|center|Microduino-GPRS/GSM Front]]
[[file:Microduino-SHEIL-B.JPG|thumb|600px|center|Microduino-GPRS/GSM Front]]
==Video==

|}