SOLVED: Send EMAIL using SIM-5320 (3G) HELP please!

Hardware Arduino GSM Shield
#1

SOLVED - SEE LAST REPLY
Trying to use current model SIMCOM 5320 modem to end email…
Sooo close, but no prize - yet.s

Unfortunately, it’s a bit different to the SIM900, as it implements a newer version of the AT command set.

Is there anyone here that can help, or has experience in what I’m missing?
Should I revert to the ‘old’ AT email commands - or will they become extinct within my lifetime!?

POWER ON - FIRST attempt

AT+CGATT=1 OK
AT+CGDCONT=1, “IP”, “internet”, “0.0.0.0”
AT+CGACT=1, 1 OK
AT+CGPADDR=1 >> +CGPADDR: 1,“10.146.53.134” <<== ASSIGNED IP ADDRESS
AT+CSMTPSSRV=“smtp.optusnet.com.au”, 465, 2
AT+CSMTPSAUTH=0
AT+CSMTPSFROM="a_user@gmail.com"
AT+CSMTPSRCPT=0,0,"b_user@gmail.com", “Controller Report”
AT+CSMTPSSUB=17
Controller Report
AT+CSMTPSBODY=62
internode test
Test message body
on multiple lines
We 22:50
OK

+CSMTPSSEND: 8 <<== NETWORK ERROR

Immediately after - make SECOND attempt

AT+CGATT=1 OK
AT+CGDCONT=1, “IP”, “internet”, “0.0.0.0”
AT+CGACT=1, 1 OK
AT+CGPADDR=1 >> +CGPADDR: 1,“0.0.0.0” <<== IP ADDRESS HAS GONE ??!
AT+CSMTPSSRV=“smtp.optusnet.com.au”, 465, 2
AT+CSMTPSAUTH=0
AT+CSMTPSFROM="a_user@gmail.com"
AT+CSMTPSRCPT=0,0,"b_user@gmail.com", “Controller Report”
AT+CSMTPSSUB=17
ControlMate Report
AT+CSMTPSBODY=62
internode test
Test message body
on multiple lines
We 22:53
+CSMTPSSEND: 255 <<== UNKNOWN ERROR

Note the IP address has gone on the second attempt!
I didn’t drop the connection
I tried with optus and gmail servers - same result

Finally power cycle - then a THIRD attempt - result identical to the FIRST
Which makes me think the modem is receiving all the commands - and getting into ‘a mode’ where it won’t accept another ‘send’ until the previous one is sent, or the modem is power cycled (clearing the operational states)

http://www.edaboard.com/thread125473.html seems to suggest we’re doing the right stuff…
The lost IP address may occur because I’m establishing the connection ‘again’ - but I don’t think so.

#2

I have a 3G module in the post so I can't help yet but maybe once it arrives we can collaborate. I did however buy the sim5216 because there appears to be a lot more AT command manuals related to HTTP access. I'm not sure what the difference the two modules is though. The sim800-900 had very similar AT commands, so with any luck the 5216 and 5320 will be similar too. Have you tried using the SIM5216 at command manual?

I also can't remember exactly why, but there was a reason I couldn't use SIM900 modules with my gmail account. I think it was to do with port access on googles end not allowing the type of connection the GSM module makes. Not sure if the SIM5320 has a way around that

#3

Thanks for the thoughts.
I'lll take a look at the 5216 ref. manuals... as noted above, the 5320 implements BOTH the older SMTP commands, as well as the newer CSMTPSxx commands - which I decided to go with for future-proof compatibility - but if it gets too hard, I'll fall back to the older commands for now.

There are a number of error possibilities - and only these two show up...
8=NETWORK ERROR
255=UNKNOWN ERROR
...Are the least helpful... !

There are specific error responses for server, recipient, authentication etc - but they all seem to be for 'later' (!)

#4

SOLVED
The sequence that worked - as below

AT+CGDCONT=1, “IP”, “myAPN”, “0.0.0.0” >>
AT+CGATT=1 OK
<takes ~5 secs>
AT+CGACT=1, 1 >>
+CGPADDR: 1,“10.146.90.214” << == assigned DHCP from carrier
AT+CSMTPSSRV=“smtp.optusnet.com.au”, 25, 1
AT+CSMTPSAUTH=0
AT+CSMTPSFROM=“sendername@optusnet.com.au”
AT+CSMTPSRCPT=0,0,"recipient@destination.net", “Test Report”
AT+CSMTPSSUB=38
ControlMate [Test Board] Status Report
AT+CSMTPSBODY=66
Version 160830
NEW Test message
body
on multiple
lines
Tu 15:44

SENDING…
<takes ~5 secs>
+CSMTPSSEND: 0

AT+CGACT=0, 1 OK
AT+CGATT=0 OK
AT+CGDCONT=1 OK

Not sure what I changed - perhaps it’s just the weather.

#5

I know this thread is over 12 months old,but I have only recently purchased the Tinysine 3G shield.(uses SIM 5320)
Is there any update on your work?

Thanks

#6

I hadn't been playing with the GPRS (data) side of things - but this code certainly worked last time I touched it.
I suspect it could be tweaked a bit for efficiency - but it was robust - which counts!

My current call in-out /SMS tools are asynchronous - and I really should upgrade this as well - so the main loop() never blocks while the modem is working in the background

#7

Hello.
I would like to continue and develop the topic of sending a letter to an email via 3G shield. Interested in this topic. I stumbled upon a project where the author transmits with the help of sim5320 to an email not just text, but first takes a photo with the camera VC0706, and then sends it with the attached photo. In short: this is an email camera. I think someone else might be interested too.
Link: Arduino Email Camera (VC0706 + 3G Shield + Arduino M0 Analogue) : 5 Steps - Instructables

#8