GTM900B GSM/GPRS Module Development Board for SIM300/900 Wireless Communication DTU Things Networking

GTM900B GSM/GPRS Module Development Board for SIM300/900 Wireless Communication DTU Things Networking

Description:
- Preface: things networking is a new generation of information technology is an important part of. Cover from the sensor, controller to the application of cloud computing. Intelligent household products and services, transportation, environmental protection, public security, intelligent fire, industrial monitoring, personal health, etc. Various kinds of fields. It is next to promote the rapid development of the world "important productive forces"! Is the network after another trillions of level market. And as a representative of GPRS communication technology is the most important link, master the GPRS communication technology, you have a trillions of market!
For the purpose of popularizing GPRS technology, and promote the development of things networking industry, we have launched the embedded TCP/IP protocol GPRS development board, easy to operate with video tutorial, you can be in twenty minutes can learn to GPRS!
At the same time, we ensure that this module in similar products is of the highest price! We this from to now has been upgraded to the fifth edition, performance is very stable, you can directly bring project!

The biggest attraction: use the commissioning of the single chip microcomputer can also connect the computer, use the computer serial debugging assistant real-time monitoring single-chip microcomputer and module communication data, very convenient to see the debugging process of the problem, make your design easier!

Hardware resources:
1, GSM/GPRS development board, the GPRS embedded TCP/IP protocol;
GTM900B module parameters:
Working frequency band EGSM900 / GSM1800 two-frequency maximum transmitted power EGSM900 / GT800 Class4 (2 w)
GSM1800 Class1 (1 w)
Receiving sensitivity < - 106 DBM normal working temperature: -20 ~ + 70
The power supply voltage of 3.3 V ~ 4.8 V (recommended value 3.8 V) (this is the module itself the power supply, 3.3 V - 5 V SCM all can stable work)
Average standby current TBD shutdown leakage current TBD
Agreement compatible GSM/GPRS Phase2/2 + support huawei GT800 agreement
AT command GSM standard AT command V. 25 AT command huawei extended AT command

Description: GTM900b for domestic for huawei's GPRS module, function SIM300 similar, but SIM300 than cheap, function and more than TC35I GPRS, can networking cost-effective, strongly recommend you use. If the communication is demanding, can focus on the SIM900 development board, SIM900 is the latest, the function is stronger and, of course, a lot more expensive.
2, support the computer serial port (232 level) connection and singlechip MCU (3.3 V - 5 V all can direct connection, and in the use of single-chip microcomputer testing can be connected to computers at the same time, no need to jump line Settings, use the computer serial debugging assistant monitoring single-chip microcomputer to send data, is very convenient, and make your design easier; (SCM connection development board is straight even mode, 3.3 V and 5 V can, because we are prepared to level matching work).
Three, use plug type sim holder, very convenient to use, with sim card protection circuit;
4, hardware support single-chip microcomputer control module start-up and shutdown, support the single-chip microcomputer testing online state;
5, development board power supply 5 v - 12 v are, the current request 1 a above, the best 2 a. Board design power light, signal lamp, RING lamp;
6, with voice interface, audio processing circuit;
Development board design maximum for your sake, please play your unlimited potential, everything is possible
Quick plug type SIM holder (easy to embedded enclosed equipment)