深圳市汇顺发电子商行

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开机电流和工作多峰值电流需要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。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通信的波特率是19200 bps 8-N-1 (GPRS Shield默认自动配对波特率)  

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

发货清单：

模块一个

GSM天线一个