Discussion in "Project Addition or Changes" started by    Helia    Feb 9, 2017.
Fri Feb 10 2017, 11:00 AM
#11
Hi
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Sat Feb 11 2017, 09:22 PM
#12
I made a few changes to make programming easier.
Remember to add comments , it makes understanding and maintaining
your code much easier.
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Tue Feb 14 2017, 06:18 AM
#13
Thank you
when we send a message the message is not getting displayed but the AT commands are getting displayed.Is it like that or the message should be displayed.
Tue Feb 14 2017, 06:11 PM
#14


Thank you
when we send a message the message is not getting displayed but the AT commands are getting displayed.Is it like that or the message should be displayed.

Helia


Most modems you can be set to echo or not echo AT commands.
Other messages are not usually echoed.
Check your modem manual for details, they are not all the same.

Thu Feb 16 2017, 04:37 PM
#15
Hi
This is what we get on the lcd when we burn the code .
Is the message read by the gsm ?
I wanted the read message to be displayed on the lcd so that we know that the gsm is reading the message.

Thu Feb 16 2017, 05:56 PM
#16


Hi
This is what we get on the lcd when we burn the code .
Is the message read by the gsm ?

Helia


You will have to post your full code
and a wiring diagram of your project.

There a many AT commands that get a simple answer.
If you send the command and get the right answer you can be sure the
modem is seeing you.
Your display is garbled, so something is wrong.
Probably with your display routine.
Fri Feb 17 2017, 04:20 AM
#17
This is the proteus simulation and the code.. we are getting the message displayed on proteus..but actually when we are trying on hardware we are just getting the at commands displayed and cant read the msg.. please help
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Fri Feb 17 2017, 08:02 AM
#18
The syntax should be like this
REC READ :"number who sent the message ,text message .
In our case as seen in the lcd pic posted previously,the lcd only displays till R of read and the further details does not get displayed on the lcd. Should the remaining part of the message be displayed on the next line of lcd and if so how to go about it?

Mon Feb 20 2017, 09:52 PM
#19


The syntax should be like this
REC READ :"number who sent the message ,text message .
In our case as seen in the lcd pic posted previously,the lcd only displays till R of read and the further details does not get displayed on the lcd. Should the remaining part of the message be displayed on the next line of lcd and if so how to go about it

Helia



Space in the 89c51 you are using is limited.
If you change the input buffer size to 90 by changing
BUFFERLIMIT equ 90 you should be able to store the full reply.
You could run out of memory, so increase the size in 10 byte steps.


The LCD is obviously limited to two rows of 16 characters, so you will need
to scroll the display, that is, show part of the message for a few seconds,
then clear the display and show the next part.
Practise using the display, then move on to scrolling the message.
To use both lines.

Working with a micro as limited as the 8051 is harder than working
with a better chip.
Working with a limited display like a 2 line LCD is harder than workng
with a PC display
Working in assembler rather than say....'c' makes it even harder.
Do worry if it seems difficult.. it is




[ Edited Tue Feb 21 2017, 01:36 AM ]
 sankalp_s like this.
Thu Mar 16 2017, 09:15 AM
#20
hi.. the following code is not working on hardware.. the msg what we are sending is not gettng displayed on lcd could you please help us out....

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Sun Oct 13 2019, 07:32 AM
Aline Hutchinson
Hey there,
ExperimenterUK
Sun Oct 13 2019, 03:53 AM
Log in.. then post your code in the 8051 forum
Sat Oct 12 2019, 03:48 PM
Bhadra Sajikumar
i am doing a countdown timer with 8051 for my project, unfortunately our professor had to take a leave of absence before he could teach us most of it.. can someone explain the .asm code of it for me?
Mon Sep 23 2019, 01:07 PM
Nathaniel
I am doing a project for my schools wireless security system with cameras,sensors and spot lights using 8051 micro controller, could you help me out with the design and its source code.
Thu Sep 19 2019, 02:18 AM
Caryn Kover
Thank you for your time,
ExperimenterUK
Tue Aug 06 2019, 12:39 AM
@Ismail ..post in forum, give details
Mon Aug 05 2019, 10:03 PM
Ismail balghmi
Hello. Please I won't download
ExperimenterUK
Wed Jul 24 2019, 06:17 AM
@BUSTER123 Please post in the forum
Tue Jul 23 2019, 11:43 PM
BUSTER123
hello! newbie here. i am kind of a guy who hates using ready - made existing libraries, so this helped a lot as i was trying to control and write to a character lcd display. however, i can't figure out how to set the cursor position. for example, i want to set it to the 5th column in the first row, so position 5. so according to the table, i am sending 10000101 on the 8 data lines of the lcd (register select pulled low). the cursor does not move there however. and i cant move the cursor left or right too. is it something wrong that i am doing? thank you.
ExperimenterUK
Fri Jul 12 2019, 01:25 AM
@ramos https://www.theengineeringprojects.com/2017/09/l298-motor-driver-library-proteus.html

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s_dinesh40@yahoo.com Avatar
Posted By [email protected]
Thu Oct 17 2019, 09:38 PM
ExperimenterUK Avatar
Posted By ExperimenterUK
Thu Oct 17 2019, 08:35 PM
Do you understand how this code works?If so, addin...
s_dinesh40@yahoo.com Avatar
Posted By [email protected]
Thu Oct 17 2019, 09:30 AM
i want to scroll message more than 2 dot matrix di...
ExperimenterUK Avatar
Posted By ExperimenterUK
Wed Oct 16 2019, 09:58 PM
What do you mean by "message scroll vertically" ?...
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Posted By [email protected]
Wed Oct 16 2019, 07:38 AM
s_dinesh40@yahoo.com Avatar
Posted By [email protected]
Wed Oct 16 2019, 07:13 AM
message scroll vertically, please share code.
ExperimenterUK Avatar
Posted By ExperimenterUK
Wed Oct 16 2019, 01:10 AM
Which camera ?What do you want the micro to do ?
ilylily07 Avatar
Posted By ilylily07
Tue Oct 15 2019, 04:43 PM
i need help.i don't know how to do it.is it possib...
ExperimenterUK Avatar
Posted By ExperimenterUK
Sun Oct 13 2019, 06:10 PM
This code does some scrolling.You will need to fin...
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Posted By ExperimenterUK
Sat Oct 12 2019, 10:19 PM
This code does not scroll, that will be complicate...