ARDUINO MEGA 2560 WITH GMS SHIIELD EXACT PROCEDURE
Closed this issue · 15 comments
GoogleCodeExporter commented
Hello,
I know there's already 2 issues for my problem but i'm not sure of the exact
procedure.
Could you please write straightly how to use the gsm shield with arduino mega
2560 ?
So i can see if i've missed something.
What steps will reproduce the problem?
1.
2.
3.
What is the expected output?
GSM Shield testing.
DB:NO RESP
DB:ELSE
DB:ELSE
DB:CORRECT BR
What do you see instead?
GSM Shield testing.
DB:NO RESP
DB:NO RESP
DB:NO RESP
What version of the product are you using? On what operating system?
Last one downloaded as of this week.
Please provide any additional information below.
For your information, i've got the shield connected to the arduino mega via
pins 10/11 (which support interrupts needed for software serial) (i've tried
with 18/19, 50/51, 52/53)
I have the alimentation too.
The switch on the board is on SW.
I've changed the pins correctly in GSM.CPP.
I've tried with another board + shield, it does exactly the same thing.
I attach the whole library including gsm.ccp and the example SMS server
included that I'm using to test.
Thanks for you help, i'm very sorry, i've tried all i've read in your forum.
Original issue reported on code.google.com by ggcDes...@gmail.com on 2 May 2012 at 10:10
Attachments:
GoogleCodeExporter commented
[deleted comment]
GoogleCodeExporter commented
The problem is that with the switch you can select only between 0-1 (HW) and
4-5 (SW).
To be more free the new version of the shield on Futurashop or Open-Electronics
allows to change the pin connection with a jumper.
I think if you want to use the Mega you should do that with some weldings.
However, I don't know why but the software serial doesn't work on Mega, so we
are changing the library to allow the use of HardwareSerial.
For now, the library for Arduino Mega is in testing, so there there is no .zip
in download, but there is a folder in branches where there is the library
compatible with Mega.
I think the steps for you (with the old version) are:
1. download the folder SIM900IDE100MEGA in /branches (use svn client)
2. remove in some safety way the switch and make a link between the lines from
SIM900 and the pins of Serial1 (18 and 19). If you prefer you can buy the new
shield, that implements also this function.
3. You should be able to use the library with Mega.
Marco
Original comment by martines...@gmail.com on 3 May 2012 at 12:06
GoogleCodeExporter commented
The change for this is done now.
Original comment by martines...@gmail.com on 3 May 2012 at 5:42
- Changed state: Fixed
GoogleCodeExporter commented
Hello,
Thanks for all your support.
We were able to talk with the module now,
after bypassing the shield and connecting to pins 18/19 directly.
But we have this answer while using the GSM_GPRSLibrary_SMS example running :
See below (We had a SIM CARD inside the module
I don't know what is not working....
If you have any idea... i would gladly use any help ! Thanks again.
GSM Shield testing.
ATT:
OKRIC: ü
ATT:
OKRIC: ü
ATT:
OKRIC: ü
ATT:
OKRIC: ü
ATT:
OKRIC: þ
DB:ELSE
ATT:
OKRIC: ü
ATT:
OKRIC: ü
ATT:
OKRIC: ü
ATT:
OKRIC: ü
ATT:
OKRIC: ü
DB:ELSE
ATT:
OKRIC: ü
ATT:
OKRIC: ü
ATT:
OKRIC: þ
ATT:
OKRIC: ü
ATT:
OKRIC: ü
DB:ELSE
ATT:
OKRIC: þ
ATT:
OKRIC: ü
ATT:
OKRIC: ü
ATT:
OKRIC: ü
ATT:
OKRIC: ü
ATT:
OKRIC: ü
ATT:
OKRIC: ü
ATT:
OKRIC: ü
ATT:
OKRIC: ü
ATT:
OKRIC: ü
DB:DIFF RESP
ATT:
OKRIC: ü
ATT:
OKRIC: ü
ATT:
OKRIC: ü
ATT:
OKRIC: ü
ATT:
OKRIC: þ
DB:NO BR
ATT:
OKRIC: ð
ATT:
OKRIC: ð
ATT:
OKRIC: ð
ATT:
OKRIC: ð
ATT:
OKRIC: ð
DB:NO BR
ATT:
OKRIC:
ATT:
OKRIC:
ATT:
OKRIC:
ATT:
OKRIC:
ATT:
OKRIC:
DB:NO BR
ATT:
OKRIC: ÿ
ATT:
OKRIC: ))ÿ
ATT:
OKRIC: )ÿ
ATT:
OKRIC: ÿ
ATT:
OKRIC: )ÿ
DB:NO BR
DB:NO BR
DB:NO BR
ATT:
OKRIC: à
ATT:
OKRIC:
ATT:
OKRIC:
ATT:
OKRIC:
ATT:
OKRIC:
DB:NO BR
status=IDLE
Original comment by ggcDes...@gmail.com on 4 May 2012 at 2:35
GoogleCodeExporter commented
Sorry, I meant bypassing the SWITCH not shield.
Original comment by ggcDes...@gmail.com on 4 May 2012 at 2:36
GoogleCodeExporter commented
Seems there is a problem with baudrate... It tries to find the baudrate but
doesn't find it. I don't know why. I should check the autobaudrate on HW
Serial.
If you restart again the sketch do you receive the same output?
If it easy for you, now that you bypassed the switch, try to change the
baudrate (running a new sketch with gsm.begin(9600) on Arduino Uno and then
retry with Arduino Mega. I'm sorry but it's a beta version and probably there
are some bugs :)
Original comment by martines...@gmail.com on 5 May 2012 at 7:32
GoogleCodeExporter commented
Hello,
I've the same output every time i try.
We're gonna try on the uno, could you tell us on what pin we should connect on
the uno to use HW ?
I'll tell you back what we have.
Thanks again for the help.
Original comment by ggcDes...@gmail.com on 7 May 2012 at 1:18
GoogleCodeExporter commented
We've tried with uno :
There is an error at compilation with the new lib (the one for the mega ) :
Users/serec/Documents/Arduino/libraries/GSM_GPRS/HWSerial.cpp: In constructor
'HWSerial::HWSerial()':
/Users/serec/Documents/Arduino/libraries/GSM_GPRS/HWSerial.cpp:4: error:
'Serial1' was not declared in this scope
/Users/serec/Documents/Arduino/libraries/GSM_GPRS/HWSerial.cpp: In member
function 'void HWSerial::end()':
/Users/serec/Documents/Arduino/libraries/GSM_GPRS/HWSerial.cpp:13: error:
'Serial1' was not declared in this scope
/Users/serec/Documents/Arduino/libraries/GSM_GPRS/HWSerial.cpp: In member
function 'virtual void HWSerial::begin(int)':
/Users/serec/Documents/Arduino/libraries/GSM_GPRS/HWSerial.cpp:25: error:
'Serial1' was not declared in this scope
/Users/serec/Documents/Arduino/libraries/GSM_GPRS/HWSerial.cpp: In member
function 'int HWSerial::peek()':
/Users/serec/Documents/Arduino/libraries/GSM_GPRS/HWSerial.cpp:29: error:
'Serial1' was not declared in this scope
/Users/serec/Documents/Arduino/libraries/GSM_GPRS/HWSerial.cpp: In member
function 'virtual size_t HWSerial::write(uint8_t)':
/Users/serec/Documents/Arduino/libraries/GSM_GPRS/HWSerial.cpp:33: error:
'Serial1' was not declared in this scope
/Users/serec/Documents/Arduino/libraries/GSM_GPRS/HWSerial.cpp: In member
function 'virtual int HWSerial::read()':
/Users/serec/Documents/Arduino/libraries/GSM_GPRS/HWSerial.cpp:37: error:
'Serial1' was not declared in this scope
/Users/serec/Documents/Arduino/libraries/GSM_GPRS/HWSerial.cpp: In member
function 'virtual int HWSerial::available()':
/Users/serec/Documents/Arduino/libraries/GSM_GPRS/HWSerial.cpp:41: error:
'Serial1' was not declared in this scope
/Users/serec/Documents/Arduino/libraries/GSM_GPRS/HWSerial.cpp: In member
function 'virtual void HWSerial::flush()':
/Users/serec/Documents/Arduino/libraries/GSM_GPRS/HWSerial.cpp:45: error:
'Serial1' was not declared in this scope
We've tried with the official lib for the uno, we've plugged on the pin 0 & 1 :
GSM Shield testing.
DB:NO RESP
DB:NO RESP
DB:NO RESP
ERROR: SIM900 doesn't answer. Check power and serial pins in GSM.cpp
status=IDLE
After having a look at the code of the lib, i suppose by default, only software
serial works on uno. So it's normal the SIM900 did not answer as we have
connected the sim900 to the hardware TX and RX.
What do you want me to test exactly ?
Thanks
Original comment by ggcDes...@gmail.com on 7 May 2012 at 8:11
GoogleCodeExporter commented
Yes, normally only softwareserial...
The error is caused because Serial1 doesn't exist on Uno, if you want to use it
with hardware serial, you have to search "Serial1" and reply with "Serial".
Original comment by martines...@gmail.com on 8 May 2012 at 7:03
GoogleCodeExporter commented
Hello, we've got a load of errors trying the lib with arduino UNO. See attached
file.
Could we come back to the beginning...
We have "DB: NO RESP" on the mega.
We try it on the UNO to be sure it works normally.
What source code branch am i supposed to download for the uno, and how am i
supposed to connect the shield to the uno ?
Do i remove the strap we made to bypass the switch ?
Once we have it running on the UNO what good will it do for running it on the
MEGA ?
I'm a bit disappointed, i bought this shield because it was supposed to work on
the arduino, i didn't know it didn't work on the mega.
We've choosen this shield because the lib comming with it had a function for
sending sms easily.
Before we tried the EASYGSM/GPRS TM2 from Mikroelektronika but we didn't have
such functionnality.
I hope you can help us using your lib on the mega.
Thanks
Original comment by ggcDes...@gmail.com on 9 May 2012 at 4:16
Attachments:
GoogleCodeExporter commented
We 've tried with a shield without the modification for the switch and the
standard lib.
It works OK.
GSM Shield testing.
DB:ELSE
DB:ELSE
DB:ELSE
DB:DIFF RESP
DB:NO BR
DB:NO BR
DB:NO BR
DB:NO BR
DB:NO BR
DB:NO BR
DB:FOUND PREV BR
DB:OK BR
status=READY
So what should we do to make it work on the mega ?
Thanks again
Original comment by ggcDes...@gmail.com on 9 May 2012 at 5:29
GoogleCodeExporter commented
Do you have any photo how to connect 18 and 17 pin with tx and rx?
Thak you for any informations.
Original comment by kamillo1...@gmail.com on 28 Dec 2012 at 1:11
GoogleCodeExporter commented
Hi!
Check the photo.
the blu-white cable is the end of the green one.
Marco
Original comment by martines...@gmail.com on 29 Dec 2012 at 11:47
GoogleCodeExporter commented
Hi guys, here is the complete procedure to use the OLD GSM shield with an
Arduino Mega:
1) change the code to switch to Arduino Mega as explained in the
Instructions.txt file that come with the GSM/GPRS Librery v304;
2) Hardware switch on SW using pins 4 and 5 for Rx and Tx (to be set in the
GSM.cpp file);
3) connect with a jumper wire the pin D5 on the GSM shield to the pin 18 (Tx1)
on the Mega board;
4) connect with a jumper wire the pin D4 on the GSM shield to the pin 19 (Rx1)
on the Mega board.
N.B.: you don't have to isolate physically the pins on the shield
Original comment by sebastia...@gmail.com on 1 Feb 2013 at 10:07
GoogleCodeExporter commented
This issue section is not longer supported.
Please check the support page www.gsmlib.org
Original comment by martines...@gmail.com on 6 Jul 2013 at 11:27