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mitesh
Joined: 13 May 2002
Posts: 287
Helped: 6
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 18 Mar 2005 14:55 Re: GSM 900/1800 module |
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Dear artem,
can u please send me datasheet for M22 & from which make it is. As i am placing order for 1K qty.
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artem
Joined: 22 May 2003
Posts: 1650
Helped: 90
Location: Turan
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| 18 Mar 2005 15:16 GSM 900/1800 module |
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DS on place below :
http://www.honestar.com:8099/english/p_1_benq.htm
I did not have them,although order arrived but customs clearance did not completed yet .
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techie
Joined: 05 Feb 2002
Posts: 833
Helped: 42
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| 05 May 2005 18:58 GSM 900/1800 module |
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| Could not find any details of using TCP/IP included in M22. Does the module include a user programmable micro-controller ?
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vdharan
Joined: 18 Apr 2005
Posts: 28
Helped: 3
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| 06 May 2005 8:04 Re: GSM 900/1800 module |
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BENQ M22 has an inbuilt TCP/IP stack. I have used it in my first design. The module works fine if it is used only in GPRS mode. The module's serial port stops functioning when a voice call comes when the module is connected to GPRS. After that the only solution is to power Off and Power on the module. Also there is no suport available from the local distributor. I have sent many mails to Benq but there is no support.
If any one has used Benq successfully tell me whether you also have faced the same problem?.
Now Iam using SIMCOM 100-S and it is working fine.Its a triband module with TCP/IP stack.
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techie
Joined: 05 Feb 2002
Posts: 833
Helped: 42
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| 06 May 2005 9:19 GSM 900/1800 module |
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Thanks vdharan. Tell me when you use the BENQ M22, what do you do about the PPP. The data has no reference to PPP stack. Can you upload some more details about your project.
Can you also give a link for complete documents that describe TCP/IP usage of the M22 module.
My usage is only GPRS. Also I can handle the power up/down of the module by microcontroller in case a voice call comes.
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pisoiu
Joined: 31 Dec 2002
Posts: 900
Helped: 24
Location: Romania
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| 06 May 2005 10:30 GSM 900/1800 module |
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Telit GM862-GPRS also support GPRS and has in built TCP/IP stack. You can find datasheets at www.gm862.com . The procedure is : you set the parameters with few at commands (APN, username, pwd, peer, port, protocol-tcp or udp, socket and connection timeouts) and with another at command you open the socket, then you can send/receive data. The disadvantage of the built in tcp/ip stack is that it can manage only one socket at a time. If this is enough, you don't have to think at PPP stack.
/pisoiu
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artem
Joined: 22 May 2003
Posts: 1650
Helped: 90
Location: Turan
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| 06 May 2005 11:54 Re: GSM 900/1800 module |
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| techie wrote: |
...
My usage is only GPRS. Also I can handle the power up/down of the module by microcontroller in case a voice call comes. |
You dont have to do that - just activate barring of incoming voice calls - and that will be fine .
Added after 40 minutes:
| vdharan wrote: |
BENQ M22 has an inbuilt TCP/IP stack. I have used it in my first design. The module works fine if it is used only in GPRS mode. The module's serial port stops functioning when a voice call comes when the module is connected to GPRS. After that the only solution is to power Off and Power on the module. Also there is no suport available from the local distributor. I have sent many mails to Benq but there is no support.
If any one has used Benq successfully tell me whether you also have faced the same problem?.
Now Iam using SIMCOM 100-S and it is working fine.Its a triband module with TCP/IP stack. |
Did you try reset via modem's DSR line intead of poweroff ???
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techie
Joined: 05 Feb 2002
Posts: 833
Helped: 42
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| 06 May 2005 16:53 GSM 900/1800 module |
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| How much does the SIMCOM S-100 cost in small qty. can you also upload a source preferrably in Hong Kong or China.
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vdharan
Joined: 18 Apr 2005
Posts: 28
Helped: 3
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| 07 May 2005 9:47 Re: GSM 900/1800 module |
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Hai teche,
| Quote: |
| Can you also give a link for complete documents that describe TCP/IP usage of the M22 module |
I have searched the net extensively and there is no doc or details available about Benq except some postings in edaboard.
I'll give you the list of commands. You can use them to connect to GPRS. I struggled too much with the distributor to get this details. I dont know why BENQ is not giving these details which will help the designer. Im my First design I used a relay to swich On & OFF the Benq supply when the module hangs. But this solution has some disadvantages as there is no provision for RTC battery in M22. Therefore you have to handle some time keeping logic in the uC to set the time of the module after reseting the module.
List of commands to connect to GPRS and send data....
(1) Use AT command to setup parameters : UserID, Password, PacketSize, Timeout, Dest IP Addr, Protocol, Port
1. AT+CGDCONT=1,"IP","INTERNET",,, (Set APN)
2. AT%CGPCO = 1,"PAP,xxxx, yyyy",1 (xxxx: UserId for GPRS dialup, yyyy: password)
3. AT$TIMEOUT=500 (100-5000 mSec)
Note: If UART does not send TCP data for the time period, the module will send the buffered data in one packet.
4. You can use IP address to present your destination information.
IP address:
AT$DESTINFO=”aa.bb.cc.dd”, 1, 1500 (Setup IP address of remote server, Protocol(1:TCP, 2:UDP), port number)
5. AT$NOSLEEP=1
(2) AT Command : “ATD*97#” to dialup GPRS and open TCP/UDP socket
This command will (1) connects GPRS (2) setups TCP connection if protocol = tcp (or UDP)(3) Switch UART from command mode to data mode.
Command mode means that device can set AT command to module.
Data mode means that device can send and receive Internet packets with raw data.
(3) In data mode : Send and receive Internet packets.
Device sends raw data to GPRS module. The BENQ GPRS module will send the data to the specified remote server by the TCP connection. GPRS module will send data to device after receive data from the server.
(4) Send “+++” to module by UART will set module from data-mode to command-mode.
Device idle one second, send “+++”, and Idle for another one second. Switch UART from data mode to command mode. But the GPRS and TCP/UDP connection still exist. Using “ATO” as AT Command will set module from command-mode to data-mode.
(5) Setting “ATH” in command-mode will disconnect GPRS and TCP/UDP. And module will return “NO CARRIER”.
--
Added after 8 minutes:
| artem wrote: |
You dont have to do that - just activate barring of incoming voice calls - and that will be fine .
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How to bar the incomming calls. Is is possible with at commands or we have to request the Service provider to do it. I could not find any at commands to do it. In SIMCOM also its not there.
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techie
Joined: 05 Feb 2002
Posts: 833
Helped: 42
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| 08 May 2005 18:28 GSM 900/1800 module |
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Great help vdharan,
I am purchasing some M22 modules soon. Can you shed some light on the antenna attachment. Most mobile phones have built/in antenna's and give good signal range. How about M22. What kind of antenna and connector should use. any source for these.
Also can someone upload a picture of M22 module with antenna attached.
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artem
Joined: 22 May 2003
Posts: 1650
Helped: 90
Location: Turan
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| 09 May 2005 12:17 Re: GSM 900/1800 module |
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| techie wrote: |
Great help vdharan,
I am purchasing some M22 modules soon. Can you shed some light on the antenna attachment. Most mobile phones have built/in antenna's and give good signal range. How about M22. What kind of antenna and connector should use. any source for these.
Also can someone upload a picture of M22 module with antenna attached. |
They have both antenna and cabbles to sale . Just ask them ..
Regarding call baring - it sould be possible to do with AT commands , or if you not like to do that put your sim card in normal phone disable incoming calls and reinsert into M22 .
Ihave tested m22 in sms mode and faced some problems for CMGR - sometimes i need to send command twise to get response , for CMGS i could need up to 5 responses to get > prompt .
Anyone else experiencing problem with m22 please post here ...
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techie
Joined: 05 Feb 2002
Posts: 833
Helped: 42
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| 10 May 2005 7:22 GSM 900/1800 module |
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I asked Honestar. They dont sell cables and antennas. Can you upload the link that sells both M22, cables and antennas. How much the antenna and pigtail costs.
A picture of M22 with antenna will be highly appreciated.
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artem
Joined: 22 May 2003
Posts: 1650
Helped: 90
Location: Turan
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| 10 May 2005 10:33 GSM 900/1800 module |
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Hi
below is the extract from their mail
a. M22
b. 40 pin connector (mail)
c. Antenna with cable
By antenna they mean physical antenna with cable about 2 meters.
In addition they sent another cable to connect m22 to antenna's cable about 10-15 cm lenght.
I will try to send modem and cables picture tomorrow .
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techie
Joined: 05 Feb 2002
Posts: 833
Helped: 42
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| 11 May 2005 7:44 GSM 900/1800 module |
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Strange. What they told me was as follows
>RF connectors, pigtails and Antennas to be used with M22 Modules
>
We have some male connector,But we are not sell this component.
I have sent them another email now.
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artem
Joined: 22 May 2003
Posts: 1650
Helped: 90
Location: Turan
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| 11 May 2005 10:20 Re: GSM 900/1800 module |
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There is picture of what i have got from them
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vdharan
Joined: 18 Apr 2005
Posts: 28
Helped: 3
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| 14 May 2005 16:58 Re: GSM 900/1800 module |
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atem wrote:
| Quote: |
Regarding call baring - it sould be possible to do with AT commands , or if you not like to do that put your sim card in normal phone disable incoming calls and reinsert into M22 .
Ihave tested m22 in sms mode and faced some problems for CMGR - sometimes i need to send command twise to get response , for CMGS i could need up to 5 responses to get > prompt .
Anyone else experiencing problem with m22 please post here ... |
Thanks, I'll try out this method for call baring.
I have not faced any prob with CMGR and CMGS. Its working perfectly fine.
Are you sending "\r\n" at the end when you send an at command?.
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kuldeep
Joined: 06 Apr 2005
Posts: 43
Helped: 1
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| 14 May 2005 18:32 Re: GSM 900/1800 module |
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Hi Vdharan,
how did u test the data exchange on M22 TCP/IP stack. Can we access any (single) website simply by using inbuilt TCP/Ip stack without programming for PPP.
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techie
Joined: 05 Feb 2002
Posts: 833
Helped: 42
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| 15 May 2005 7:46 GSM 900/1800 module |
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Kuldeep, I dont think you need the PPP for comminicating with M22. From what I see from this topic, issuing a ATD*97# connects you directly (socket wise) to the website of your command. You can just talk in application level protocol from there on.
People often confuse that PPP is needed for talking on the internet. Keep in mind that PPP is just for the conection between the modem and your microcontroller. If your modem lets you, the PPP can be bypassed (eg using ATD*97#).
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artem
Joined: 22 May 2003
Posts: 1650
Helped: 90
Location: Turan
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| 16 May 2005 11:10 Re: GSM 900/1800 module |
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| vdharan wrote: |
I have not faced any prob with CMGR and CMGS. Its working perfectly fine.
Are you sending "\r\n" at the end when you send an at command?. |
Hi vdharan
No I send CR LF as it should be . I did not experience any problem with R520 running same code - so i think it is software problem . What is the M22 firmware revision you are using ?
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vdharan
Joined: 18 Apr 2005
Posts: 28
Helped: 3
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| 17 May 2005 19:06 Re: GSM 900/1800 module |
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| kuldeep wrote: |
Hi Vdharan,
how did u test the data exchange on M22 TCP/IP stack. Can we access any (single) website simply by using inbuilt TCP/Ip stack without programming for PPP. |
You dont need to implement ppp stack. Give ATD*97# connect to GPRS, open a socket send and receive data.
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nothingcool
Joined: 25 Jul 2005
Posts: 1
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| 25 Jul 2005 17:02 Re: GSM 900/1800 module |
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Dear All,
I am interested in Sony Ericsson GR47. Appreciate if anyone could advise where I could get the module and its accessories with best price. I am thinking of getting one or two demo units first.
Thank You in advance.
Added after 7 minutes:
Dear All,
I am interested in Sony Ericsson GR47. Appreciate if anyone could advise me where to buy the module and its accessories. Your help and response are appreciated.
Thank you in advance.
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mitesh
Joined: 13 May 2002
Posts: 287
Helped: 6
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| 26 Jul 2005 7:01 Re: GSM 900/1800 module |
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| Unique is the authorised vendor for Sony Erission GSM modules.
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moo82
Joined: 12 Jan 2006
Posts: 10
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| 12 Jan 2006 14:07 Re: GSM 900/1800 module |
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Dear all,
I am intersted in M22 for my project .But i'll use it in socket.I just wanna know if it's necessary to use a SIM card for an M2M application???
thank u
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techie
Joined: 05 Feb 2002
Posts: 833
Helped: 42
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| 12 Jan 2006 14:51 GSM 900/1800 module |
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| Ofcourse you need a SIM card. How else would you connect to the GPRS operator.
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moo82
Joined: 12 Jan 2006
Posts: 10
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| 12 Jan 2006 15:03 Re: GSM 900/1800 module |
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thank you
but I was thinking that if i put in a flash mémory the information containing in the SIM card and by programming .I can load it.The fact is that i need to reduce the price as much as possible.In fact it's gonna be the same operator and the always the same machines,I don't have to change terminal
so what u think ..???
Added after 30 seconds:
thank you
but I was thinking that if i put in a flash mémory the information containing in the SIM card and by programming .I can load it.The fact is that i need to reduce the price as much as possible.In fact it's gonna be the same operator and the always the same machines,I don't have to change terminal
so what u think ..???
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aNdreiBuuu
Joined: 30 Apr 2001
Posts: 387
Helped: 11
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| 12 Jan 2006 15:11 Re: GSM 900/1800 module |
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...If you use a sim clone you cannot register to network with the same "ID" at the same time and in a worst case you can be banned...
anyway, the best way is to talk to your GSM opperator and negociate a bulk contract only for GPRS traffinc/voice in your VPN; in this way you could optain a very good price...
//a
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moo82
Joined: 12 Jan 2006
Posts: 10
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| 12 Jan 2006 15:20 Re: GSM 900/1800 module |
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but if the ID is given by the operator(i don't khow if it's possible) every machine will have an ID different from the others. so if i replace the sim card by flash memory ther's no problem.
For me the sim card is equivalent to an added memory with some operator informations, is this correct???
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pisoiu
Joined: 31 Dec 2002
Posts: 900
Helped: 24
Location: Romania
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| 12 Jan 2006 15:34 GSM 900/1800 module |
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My 2 cents: you are wasting your time with this idea. The Subscriber Identity Module contain secret information, and I doubt that any GSM operator will disclose this to anyone and allow to use in their network a module without a SIM or with a cloned one. A car need gas to run, and a GSM terminal needs a SIM card. There is no other way. Sorry for my direct opinion.
/pisoiu
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moo82
Joined: 12 Jan 2006
Posts: 10
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| 12 Jan 2006 15:43 Re: GSM 900/1800 module |
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thank you pisoiu for your direct opinion.
i am trynng to find an idea to reduce the price so i tried anything.
Is there a GSM/GPRS MODULE (or socket) cheaper than M22
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techie
Joined: 05 Feb 2002
Posts: 833
Helped: 42
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| 12 Jan 2006 15:52 GSM 900/1800 module |
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| I think M22 is the cheapest. I dont know about antennas and connector etc. Does anyone have a source for cheap antenna's and connectors for M22, preferrably in China from where I intend to get the M22 module.
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