Gsm gprs sim900a

Description:   This is an ultra compact and reliable wireless module. The SIM900A is a complete Dual-band GSM/GPRS solution

Walnut GSM/GPRS Modem USB The GSM/GPRS Modem USB uses SIM900A based Quad band MHz GSM / GPRS module. It can be connected to PC or laptop via  USB directly or to a microcontroller UART using TTL levels. The modem consists of all the external circuit required to start experimenting with the SIM900A module like the power regulation, external antenna, SIM Holder, etc. Modem is built with Quad Band GSM/GPRS based SIM900A module from SIMCOM. It works on frequencies MHz. SIM900A can search these bands automatically. The frequency bands can also be set by AT Commands. The baud rate is configurable from through AT command. The GSM/GPRS Modem is having internal TCP/IP stack to enable you to connect with internet via GPRS. Best suited for GSM based Microcontroller Projects (better than SIM300 and other GSM Modems) **** Can be Use for Bulk SMS sending using Compatible software. Features: U ses the extremely popular SIM900A GSM module. Accepts commands through On board USB serial. Also can accept commands from microcontroller UART. Provides serial TTL interface for easy and direct interface to microcontrollers. Works on 9V-18V 1 A SMPS supply. Speaker and Microphone pins onboard for voice Communication. On board SMA connector with GSM antenna. On board Power, Network, Ring and status LED’s for indication. Can do basic functions which can be done via normal phone like calling, send sms, access data through GPRS etc. Plug and play device. Can accept commands through Hyper Terminal. Ft232 R  Based USB communication- Better and Faster than other Cheap USB Drivers. Supports Windows / Vista / Server / XP / SE / MaC OS X / Mac OS 9,Linux 3.x.x / 2.x.x. Small size. NOTE: The modem consumes current of nearly 1A during transmission; please make sure that your power supply can handle such currents. Modems are pretested before shipping. We recommend to use a 12V DC 2 Amps power supply & Use USB Cable to Connect GSM MODEM to PC or Laptop. Please be very gentle with the SIM card tray while inserting or removing the SIM card. Also don't tighten the screws of the antenna too much, just make sure it is connected properly without exerting too much force to tighen the antenna. This Product Includes: ·          GSM/GPRS Modem USB ·          2 dbi Rubber duck antenna ·          USB Cable ·          USB Driver (FT232R) Please Visit for Download AT Commands & USB Drivers: http://www.walnutinnovations.com/gsm-usb-modem.html Rules and Regulations: 1. All Items

Walnut GSM/GPRS Modem USB The GSM/GPRS Modem USB uses SIM900A based Quad band MHz GSM / GPRS module. It can be connected to PC or laptop via  USB directly or to a microcontroller UART using TTL levels. The modem consists of all the external circuit required to start experimenting with the SIM900A module like the power regulation, external antenna, SIM Holder, etc. Modem is built with Quad Band GSM/GPRS based SIM900A module from SIMCOM. It works on frequencies MHz. SIM900A can search these bands automatically. The frequency bands can also be set by AT Commands. The baud rate is configurable from through AT command. The GSM/GPRS Modem is having internal TCP/IP stack to enable you to connect with internet via GPRS. Best suited for GSM based Microcontroller Projects (better than SIM300 and other GSM Modems) **** Can be Use for Bulk SMS sending using Compatible software. Features: U ses the extremely popular SIM900A GSM module. Accepts commands through On board USB serial. Also can accept commands from microcontroller UART. Provides serial TTL interface for easy and direct interface to microcontrollers. Works on 9V-18V 1 A SMPS supply. Speaker and Microphone pins onboard for voice Communication. On board SMA connector with GSM antenna. On board Power, Network, Ring and status LED’s for indication. Can do basic functions which can be done via normal phone like calling, send sms, access data through GPRS etc. Plug and play device. Can accept commands through Hyper Terminal. Ft232 R  Based USB communication- Better and Faster than other Cheap USB Drivers. Supports Windows / Vista / Server / XP / SE / MaC OS X / Mac OS 9,Linux 3.x.x / 2.x.x. Small size. NOTE: The modem consumes current of nearly 1A during transmission; please make sure that your power supply can handle such currents. Modems are pretested before shipping. We recommend to use a 12V DC 2 Amps power supply & Use USB Cable to Connect GSM MODEM to PC or Laptop. Please be very gentle with the SIM card tray while inserting or removing the SIM card. Also don't tighten the screws of the antenna too much, just make sure it is connected properly without exerting too much force to tighen the antenna. This Product Includes: ·          GSM/GPRS Modem USB ·          2 dbi Rubber duck antenna ·          USB Cable ·          USB Driver CD (FT232R) Please Visit for Download AT Commands & USB Drivers: http://www.walnutinnovations.com/gsm-usb-modem.html Rules and Regulations: 1. All Items

Product details   SIM900A Modem is built with Dual Band GSM/GPRS based SIM900A modem from SIMCOM. It works on frequencies MHz. SIM900A can search these two bands automatically. The frequency bands can also be set by AT Commands. The baud rate is configurable from through AT command. The GSM/GPRS Modem is having internal TCP/IP stack to enable you to connect with internet via GPRS. SIM900A is an ultra compact and reliable wireless module. This is a complete GSM/GPRS module

Professional GSM GPRS modem manufacturer. * We can offer secondary development controls, SDK DLL, customized AT commands for own modules. * We integrate multi chipsets inside Serial port data cable, instead of traditional PCI interface card, more stable and convenient, anti signal interference, electromagnetic shielding. * Bulk SMS, multi recharge and voice broadcasting three in one module available. * Own developed module, own developed software, own manufacture help us offer competitive price, professional service, fast response and stable performance to clients. Web: http://en.gzqida.com Email: puiyee[at]gzqida.com

  This is a plug and play GSM Modem with a simple to implement RS232, TTL serial and USB interface. It works on frequencies 900/ 1800 MHz. Use it to send SMS, make and receive calls, and do other GSM operations by simple AT commands through a serial interface from microcontrollers and computers. It uses the popular SIM900A module for all its GSM operations. It comes with a standard RS232 interface which can be used to easily interface the modem to microcontrollers and computers. Through USB, the modem can be operated from a computer to send/receive calls, messages, etc    The modem consists of all the external circuit required to start experimenting with the SIM900A module like the power regulation, external antenna, SIM Holder, etc. Features Uses the extremely popular SIM900A GSM module USB communication allows direct communication with computers Provides the industry standard serial RS232 interface for easy connection to computers and other devices Provides serial TTL interface for easy and direct interface to microcontrollers Power, Status and Network LEDs for easy debugging Onboard MIC and Speaker circuits and 3.5mm audio connectors for direct connection to mics and speakers Can be used for GSM based Voice communications, Data/Fax, SMS,GPRS and TCP/IP stack Can be controlled through standard AT commands Module’s operation mode can be controlled through the PWR Key connected to the PWRKEY pin (refer the SIM900A datasheet for more information) Comes with an onboard wire antenna for better reception. Board provides an option for adding an external antenna through an SMA connector The SIM900A allows an adjustable serial baudrate from 1200 to 115200 bps Modem has low power consumption of 0.25 A during normal operations and around 1 A during transmission Operating Voltage: 7 – 15V AC or DC (board has onboard rectifier) Related Documents Stater Guide AT Commands Set   Download Terminal tool for Troubleshooting(winXP/7/8)

SIM900A MODULE INTRODUCTION: SIM900A Modem is built with Dual Band GSM/GPRS based SIM900A modem from SIMCOM. It works on frequencies MHz. SIM900A can search these two bands automatically. The frequency bands can also be set by AT Commands. The baud rate is configurable from through AT command. The GSM/GPRS Modem is having internal TCP/IP stack to enable you to connect with internet via GPRS.  SIM900A is an ultra compact and reliable wireless module. Features: This is a complete GSM/GPRS module

GSM/GPRS Modem-RS232 is built with Dual Band GSM/GPRS engine- SIM900A, works on frequencies MHz. The modem supports RS232 interface which allows you to connect to PC as well as microcontroller with. The baud rate is configurable from through AT command. This GSM/GPRS Modem is having internal TCP/IP stack to enable you to connect with internet via GPRS. It is suitable for SMS, Voice as well as DATA transfer application

Description: SIM908 GPS & Gsm/Gprs Quad Band Serial Modem SIM908 module is a complete Quad-Band GSM/GPRS module which combines GPS technology for satellite navigation. The compact design which integrated GPRS and GPS

GSM Modem with quad band. RS232/USB interface.For bulk sms, voice call, imei change. Provide AT command, Secondary Development for industry.

* 8 ports SIM card slots.Just like 8 single-channel equipments work at the same time * 2G GSM Frequency: 900/1800MHz * SMS sending: 600/800/1000/1200 SMS per hour by one port * Connection with the computer through RS232 interface (PCI card is opitonal) can be integrated with USB interface * Each port with separate power switch * Each individual module can be discharged * Bulk sms/mms sending, voice ads, data consumption and IMEI changeable etc * Open AT command * Industrial chassis, elegant shell * Wireless access to interne * Comply with GSM phase2 standard * Internet Services: PPP,TCP, UDP, FTP,HTTP, SMTP, POP3 Model NO. : QS81 Module : QS80 Network : GSM Frequency : Dual band: 850/900/1800/1900 Mhz Max Transmit Power Class 1(1W):DSC1800,PCS1900 Class 2(2W):GSM850,EGSM900 SIM Port : 8 x SIM card(big/small) slots SMS quantity : Send 600/800/1000/1200 SMS per hour by one port SIM port : Big card:85*53mm , small card:25*15mm, 1.8V or 3V Port : USB2.0/PCI Function:Bulk sms/mms,voice,wap,imei change,stk recharge,CSD,etc. Internet : Wireless Access to internet With TCP/IP stack Internet Services: PPP,TCP, UDP, FTP,HTTP, SMTP, POP3 AT command PC System : Windows2000,Windows XP,Windows Vista,Windows 7,WinCE 4.2,WinCE 5.0,WinCE 6.0,Linux,MAC Input voltage DC 12V~24V Working temperature -20℃~+70℃ Storage temperature -40℃~+85℃ Size : 220*120*114mm Package size : 27*21*17.1cm Housing : Aluminum Casing Weight :3.0kg Accessories :AC/DC adapter, USB cable/PCI card, Antennas and driver

Specification Compatible Arduino UNO/Seeeduino directly ; Other main board via jumpers Selectable interface UART, Software serial Quad band support MHz Communication support Standard - GSM and Enhanced - SIMCOM AT Commands Operation temperature -40°C to +85 °C Protocol support MUX protocol, embedded TCP/UDP protocol, FTP/HTTP, FOTA, MMS, embedded AT Certification of SIM900 CE, IC, FCC, ROHS, PTCRB, GCF, ICASA, REACH, AT&T Dimensions mm Consumption Power supply 5v via 5V pin, v via Vin pin

Specifications: GSM SIM900A USB SHIELD GSM/GPRS Module: SIMCOM SIM900A On board Interfaces USB (usb to serial using CP) RS232 with MAX232 TTL pin breakout (RXD,TXD,GND) SIM 900A GSM GPRS Module feature General features •Dual-Band MHz •GPRS multi-slot class 10/8 •GPRS mobile station class B •Compliant to GSM phase 2/2+ – Class 4 (2 W @900 MHz) – Class 1 (1 W @ MHz) •SAIC (Single Antenna Interference Cancellation) support •Dimensions: mm •Weight: 3.4g •Control via AT commands (GSM and SIMCOM enhanced AT Commands) •SIM application toolkit •Supply voltage range : V •Low power consumption: 1.0mA(sleep mode&BS -PA-MFRMS=9) •Operation temperature: -40°C to +85 °C Default Settings on the board The baud rate is set to when we ship the board. You may change it with AT+IPR = . The echo of characters is turned on by default. Downloads SIM 900 AT commands SIM900_AT_Command_Manual_V1.03.pdf USB Driver To connect GSM Modem with computer USB driver is required, please download from Silicon Labs website. GUI for windows Xplore GSM is a Windows GUI and command line software that can be used to test and evaluate the GSM USB Shield.

Description: Dual band (900MHz/MHz) GSM/GPRS Modem with very advance SIM900/Sim900A GSM module. The modem follows plug and play operation with on board RS232 interface for communication and follows standard AT command set. Advantage of using this modem will be that you can use its RS232 port to communicate and develop embedded applications. Applications like SMS Control, data transfer, remote control and logging can be developed easily. The modem can either be connected to PC serial port directly or to any microcontroller. It can be used to send and receive SMS or make/receive voice calls. It can also be used in GPRS mode to connect to internet and do many applications for data logging and control. In GPRS mode you can also connect to any remote FTP server and upload files for data logging. Supports features like Voice, SMS, Data / Fax, GPRS and integrated TCP/IP stack. It works on frequencies EGSM 900Mhz, DCS MHz and PCSMhz. Specification: Data / Fax, SMS, GPRS - Integrated TCP / IP stack Features - Quad Band GSM / GPRS MHz - GPRS multi - slot class 10 / 8 GPRS Mobile station class B Compliant to GSM Phase 2 / 2 + Class 4 (2W@ MHz) Class 1 (1W@ MHz) - Control via AT commands (GSM and enhanced AT commands) - Operation Temperature (-20 deg C to +55 deg C) Specifications for Voice Triode. - Half rate (HR) Full rate (FR) Enhanced Full rate (EFR) Hands-free operation(Echo suppression) Specifications for Fax Group 3 - class 1 Specifications for data GPRS class 10: max 85.6 kbps (downlink) - PBCCH support Coding schemes CS CSD up to 14.4 kbps USSD Non transparent mode PPP - Stack We deliver these products In Kirti Nagar, Connaught Place, Patel Nagar, Bhagirath Palace, Karol Bagh, Nehru Place, Laxmi Nagar, Lajpat Nagar, Pitampura, Khan Market, Paharganj, Sarojini Nagar, Noida, Vaishali, Faridabad, Ghaziabad, Gurgaon and Delhi NCR. For more information, please contact: MatLogix Technologies Pvt. Ltd. RZ- A/59, Second Floor, Street No. 4, Near Hotel The Grace, New Delhi - Call: , E-mail id: Visit: http://matlogix-technologies.shopclues.com/

The SIM900A is an ultra compact and reliable wireless module. The SIM900A is a complete Dual-band GSM/GPRS solution