Description
Walnut GSM/GPRS Modem USB Sim800
The GSM/GPRS Modem USB uses SIM800 based Quad band 850/900/1800/1900MHz GSM / GPRS module. It can be connected to PC or laptop via USB directly or to a microcontroller UART using TTL levels.
The device consists of all the external circuit required to start experimenting with the SIM900A module like the power regulation, external antenna, SIM Holder, etc.
Inbuilt Quad Band GSM/GPRS based SIM800 module from SIMCOM. It works on frequencies 850/900/1800/1900MHz. SIM900A can search these bands automatically.
Frequency bands and baud rate (1200-115200) 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 and best for GSM based Microcontroller Projects (better than SIM300,900a and other GSM Modems)
GSM Device Operated by SMS & Calling
This GSM Switch allows switching almost any Industrial or household appliances On or OFF remotely via mobile network.
This device uses GSM cell phone network – 2G/3G/4G, easy working with SMS & Calling (DTMF) Commands. Using digital inputs one can get an extra SMS alert or call.
Remote control via your mobile phone, Work anywhere in the world where there is GSM cell phone network.
**** Is usable for Bulk SMS sending using Compatible software.
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- Uses the extremely popular SIM800 GSM module.
- Accepts commands through on-board USB serial.
- Also, accepts commands from microcontroller UART.
- This Modem provides serial TTL interface for easy and direct interface to microcontrollers.
- Works on 9V-24V 1 A SMPS supply.
- Speaker and Microphone pins onboard for voice Communication.
- On board SMA connector with GSM antenna and power,Network, Ring and status LEDs for indication.
- Basic functions which can be done via normal phone like calling, send sms, access data through GPRS etc.
- It is a Plug and play device, just plug in the USB cable and power adapter and start using it.
- User can communicate easily as it accepts commands through Hyper Terminal.
- USB communication:
* One can easily use multiple modems at the same time with a PC.
* Better and Faster than other Cheap USB Drivers. - This device Supports Windows 8.1 / 8 / 7 / Vista / Server 2003 / XP / 2000 / 98SE / MaC OS X / Mac OS 9, Linux 3.x.x / 2.x.x.
- Small size Board.
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