此宝贝是SIM900 GPRS无线模块， 4频模块全球可用。

        GPRS Shield扩展板是一个串口的GSM/GPRS无线模块。可以学习GSM/GPRS手机开发、远程控制设备开发，、无线抄表，智能家电，超远距离控制等。

        GPRS Shield 100%兼容所有的标准Arduino开发板。GPRS Shield是一个4频的GPRS/GSM模块，同时支持4种制式频段850 / 900/ 1800 / 1900 MHz，适用于国内外，可发送SMS短信，打电话，GPRS等所有手机具备的功能。

注意：这是新版本（64M版本），支持短信彩信，旧版本只支持短信哦。

加量不加价！！！

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接口说明Interface Introduction

使用说明

1.电脑调试USB--TTL即可。此模块供电为：5V-26V，推荐5V 2A的电源。插上Arduino主板后,电源必须能提供2A的电流。原因是GPRS Shield开机电流和工作最多峰值电流需要最大2A，但是USB口是无法提供如此大的电流，所以必须外接供电设备。另一路供电口排针引出 3.7--4.5V供电适合锂电池供电。串口完美兼容arduino单片机。TTL串口兼容3.3和5V单片机。

2.保证你的SIM卡没有锁住

3.GPRS Shield通信的波特率最好是19200 bps 8-N-1 (GPRS Shield默认自动配对波特率)  

The GPRS Shield is based on SIM900 module from SIMCOM and compatible with Arduino and its clones. The GPRS Shield provides you a way to communicate using the GSM cell phone network. The shield allows you to achieve SMS, MMS, GPRS and Audio via UART by sending AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands). The shield also has the 12 GPIOs, 2 PWMs and an ADC of the SIM900 module(They are all 2V8 logic) present onboard.

Features

·         § Quad-Band 850 / 900/ 1800 / 1900 MHz - would work on GSM networks in all countries across the world.

·         § GPRS multi-slot class 10/8

·         § GPRS mobile station class B

·         § Compliant to GSM phase 2/2+

·         § Class 4 (2 W @ 850 / 900 MHz)

·         § Class 1 (1 W @ 1800 / 1900MHz)

·         § Control via AT commands - Standard Commands: GSM 07.07 & 07.05 Enhanced Commands: SIMCOM AT Commands.

·         § Short Message Service - so that you can send small amounts of data over the network (ASCII or raw hexadecimal).

·         § Embedded TCP/UDP stack - allows you to upload data to a web server.

·         § RTC supported.

·         § Selectable serial port.

·         § Speaker and Headphone jacks

·         § Low power consumption - 1.5mA(sleep mode)

·         § Industrial Temperature Range - -40°C to +85 °C

Specifications

Application Ideas

·         § M2M (Machine 2 Machine) Applicatoions.

·         § Remote control of appliances.

·         § Remote Weather station or a Wireless Sensor Network.

·         § Vehicle Tracking System with a GPS module.

Cautions

·         § Make sure your SIM card is unlocked.

·         § The product is provided as is without an insulating enclosure. Please observe ESD precautions specially in dry (low humidity) weather.

·         § The factory default setting for the GPRS Shield UART is 19200 bps 8-N-1. (Can be changed using AT commands).

Interface Introduction

·         § Power select - select the power supply for GPRS shield(external power or 5v of arduino)

·         § Power jack - connected to external 4.8~5VDC power supply

·         § Antenna interface - connected to external antenna

·         § Serial port select - select either software serial port or hareware serial port to be connected to GPRS Shield

·         § Hardware Serial - D0/D1 of Arduino

·         § Software serial - D7/D8 of Arduino

·         § Status LED - tell whether the power of SIM900 is on

·         § Net light - tell the status about SIM900 linking to the net

·         § UART of SIM900 - UART pins breakout of SIM900

·         § Microphone - to answer the phone call

·         § Speaker - to answer the phone call

·         § GPIO,PWM and ADC of SIM900 - GPIO,PWM and ADC pins breakout of SIM900

·         § Power key - power up and down for SIM900

图片展示

发货清单：

模块一个

GSM天线一个