Discussion in "GSM and CDMA Discussion" started by    Engineero    Aug 28, 2012.
Tue Aug 28 2012, 11:43 pm
#1
hello every one , i need to choose a simple ,reliable and efficient serial GSM modem with Rs232 interference that works with AT commands , i found on the internet some modems that have also a GPS receiver with RS232 both of them in compact form , so plz
give me your feedback , i'll be appreciated .
thnx in advance
Wed Aug 29 2012, 10:44 am
#2
I do not recommend using modem+GPS combo. their GPS performance is worst. I suggest you to go with two different modules. I am using Quectel GSM modems and GPS modules (http://www.quectel.com/) they are cheaper and highly reliable. My friend is a supplier so I get a good price too. They also provide facility to write your code in modem so you dont need any extra controller on board. Their modem has two general purpose uarts and one debug port and around 40 multifunction GPIOs.
Wed Aug 29 2012, 11:41 am
#3
As told by AJay, its never a good idea to use a combo gsm+gps
and yes quectel.com modems are really nice, had used it sometimes ago.
If you dont get quectel modem, you can simply go for any sim300 or sim900 based modems from lot of Online shops like sunrom, nskelectronics, etc.. and use a dedicated GPS receiver.
Wed Aug 29 2012, 08:50 pm
#4
What about Sim908 from Simcom ?
Thu Aug 30 2012, 12:10 am
#5
@ Engineero
yes it is ok
Thu Aug 30 2012, 05:41 pm
#6
no problems with GPS ?
Fri Aug 31 2012, 09:53 am
#7
go for SIM900 + external GPS instead.
 Engineero like this.
Fri Aug 31 2012, 11:15 pm
#8
i need to know exactly what is wrong with sim908 ?
Sat Sep 01 2012, 12:01 am
#9
http://www.alibaba.com/product-gs/610599311/SIM908_modem_with_gps.html
Sat Sep 01 2012, 11:17 pm
#10
I did not tested sim908 but i tested earlier version of SIMcom's GSM-GPS combos. performance is not good. If you want you can get one and do some testing on it only then finalize it.

Get Social

Information

Powered by e107 Forum System

Downloads

Comments

Bobbyerilar
Thu Mar 28 2024, 08:08 am
pb58
Thu Mar 28 2024, 05:54 am
Clarazkafup
Thu Mar 28 2024, 02:24 am
Walterkic
Thu Mar 28 2024, 01:19 am
Davidusawn
Wed Mar 27 2024, 08:30 pm
Richardsop
Tue Mar 26 2024, 10:33 pm
Stevencog
Tue Mar 26 2024, 04:26 pm
Bernardwarge
Tue Mar 26 2024, 11:15 am