geethika
17 Jul 2014: 10:32 AM
Sir iam unable to run the code in proteus....after displaying "Enter Lock Code : " it is not taking the input from keypad and is doing nothing.
help me.
thanku and regards.
  
ajay_bhargav
21 Jul 2014: 05:20 AM
Geethika, can you post your problem in forum with proteus schematic?
  
sufiyan
28 Aug 2014: 16:38 PM
can you please tell me what type of lock activator i can use in place of led???
  
sufiyan
29 Aug 2014: 08:31 AM
please can you tell me which type of lock activator should i connect in place of LED? can i use selenoid lock actuator
  
ajay_bhargav
30 Aug 2014: 16:11 PM
You can make use of Solenoid lock.
  
vikshit
12 Sep 2014: 06:02 AM
Sir iam unable to run the code(lock.hex) in proteus....after displaying "Enter Lock Code : " it is not taking the input from keypad and is doing nothing.
help me.
  
breadman
16 Sep 2014: 06:03 AM
sorry but at89c2051 have <5kb flash. is it possible to install the lock.hex on this ic ? sorry for my bad english.
  
ajay_bhargav
17 Sep 2014: 05:02 AM
@Vikshit, Check your keypad connections. Try swapping Rows and Columns. If you still face issue post in forum.

@breadman, hex file always have more size than the actual binary code as hex is in ascii. Programmer software converts hex to binary before loading. You should not have any issue installing hex file in IC.
  
breadman
17 Sep 2014: 05:49 AM
ok, thanks for explaining. what compiler are you using for compiling main.c ?
  
ajay_bhargav
01 Oct 2014: 06:42 AM
Code is written for Keil.
  
breadman
06 Oct 2014: 10:20 AM
Thank you very much sir. The program was running very well on at89s51.
  
FARYAL
12 Nov 2014: 18:41 PM
the lcd is not showing the pasword i am entering plus is not doing anything after that
  
ajay_bhargav
14 Nov 2014: 05:16 AM
@FARYAL, check your keypad connections. if you have any doubts please post in forum.
  
sufyan
27 Dec 2014: 16:31 PM
can we use this code in AT89S52 instead of AT89C2051 ....
  
ajay_bhargav
06 Jan 2015: 04:39 AM
@sufyan, Yes you can use AT89S52. Just keep the same port pins.
  
haishbhat
12 Feb 2015: 11:16 AM
sir plz send the source code to my e mail.plzzzz
  
ajay_bhargav
13 Feb 2015: 04:45 AM
@haishbhat, please use the download button.
  
vinothkumar
25 Mar 2015: 12:40 PM
sir i want abstract for digital code lock using at89c2089.
  
ajay_bhargav
29 Mar 2015: 19:31 PM
@vinothkumar, I don't think it will be hard to write few words on the project as simple as a digital lock. Please do prepare an abstract and share it with us. We will add it to this project as your contribution.
  
srikar
09 Apr 2015: 01:40 AM
hello sir can u please help me i need proteus code for this digital code lock
vl u pls mail me
  
ajay_bhargav
10 Apr 2015: 18:22 PM
@Srikar, code is provided in the zip file. there is no separate code for proteus. Post in forum for further questions.
  
astro
26 Jul 2015: 01:40 AM
Should I just be burning the main.c function onto the microcontroller? What are the other files for?
  
krizza
24 Aug 2015: 02:34 AM
could you pleas help me to create this project for our final grading @ AT89C2051
  
ajay_bhargav
27 Aug 2015: 07:16 AM
@krizza, Please download the project and build it. I have also provided hex file incase you do not have compiler.
  
tabrej
22 Sep 2015: 08:14 AM
admin sir please send me the source code of password based door lock system...i m trying from 2 month. still not get success on it.
so please help me sir
  
ajay_bhargav
29 Sep 2015: 21:53 PM
@tabrej, Click on the download file button to get the zip file containing code and schematic. Post in forum if you need any help.
  
h-shahsavar
23 Nov 2015: 04:59 AM
its very interesting
thanks
  
Ajay
28 Mar 2016: 13:05 PM
Can u send me the whole working of main circuit diagram
I need urgent ...plz sir
  
Neng
16 Aug 2016: 04:46 AM
Sir can you help me for my project? I need to have a servo motor that use for my lock. My project is like a vault.
  
Jainvipul
10 Mar 2018: 12:14 PM
Hi,
I am working on digital code lock project. I got the output on proteus(did not connect the pull up resistors connected to lcd.)
When I am testing on breadboard the LCD shows "Enter the codelock: " but when I press the matrix keypad nothing is displayed on LCD.
  
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DragonDad
Tue May 21 2019, 04:02 PM
Hi. Who is online?
Tue May 14 2019, 01:38 AM
Jayson Contreras
Hello
Xkalebar
Sun Apr 28 2019, 10:06 AM
Please provide me the code for gsm based sms controlled notice board
ExperimenterUK
Sun Apr 14 2019, 11:52 PM
@hassan malik post your problem in the "General help Guidance and Discussion" forum
Sun Apr 14 2019, 06:06 PM
RAJESH MAPARi
please send me code to interface atmega32 with 24c1024 serial eeprom
Sun Apr 14 2019, 02:33 PM
hassan malik
hello sir i installed proteus 7.8 professional on window 7 ultimate and window 10 but there would be same errors onn both windows. the error is bad license key.please any one help me
Sun Apr 14 2019, 02:32 PM
hassan malik
hello sir i installed proteus 7.8 professional on window 7 ultimate and window 10 but there would be same errors onn both windows. the error is bad license key.
ExperimenterUK
Sat Apr 06 2019, 06:59 PM
@deshrar. Please post your question in 8051 forum
Sat Apr 06 2019, 08:43 AM
deshraj
hallo mam.. i have downloded gsm notice board code its running fine on lcd but how so send msg to the module . i mean format of password and msg.. thank you
kevinharsha
Wed Apr 03 2019, 05:38 PM
Can i see the circuit diagram for the music tone library 8051 project?

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Forum Activity
Ansh12 Avatar
Posted By Ansh12
Sun Apr 28 2019, 02:15 PM
I made a minor change, it works in Proteus.Try the...
ExperimenterUK Avatar
Posted By ExperimenterUK
Thu Apr 25 2019, 08:20 PM
I made a minor change, it works in Proteus.Try the...
gigyani Avatar
Posted By gigyani
Thu Apr 25 2019, 01:17 AM
when i add cufirst.hex its not working.after 2-3 s...
ExperimenterUK Avatar
Posted By ExperimenterUK
Wed Apr 24 2019, 12:29 AM
http://www.8051projects.net/download-d205-electron...
gigyani Avatar
Posted By gigyani
Tue Apr 23 2019, 09:22 PM
How to enter the electronic voting machine into vo...
Ansh12 Avatar
Posted By Ansh12
Mon Apr 22 2019, 09:12 AM
Then flash the led when you get any input on B0.Le...
ExperimenterUK Avatar
Posted By ExperimenterUK
Fri Apr 19 2019, 05:35 PM
The full error is control_unit.asm(1294): error A4...
gigyani Avatar
Posted By gigyani
Thu Apr 18 2019, 10:09 PM
I'm using keil uvision5. attached is the rar file ...
ExperimenterUK Avatar
Posted By ExperimenterUK
Thu Apr 18 2019, 04:58 PM
Please zip your full code and post it.Which assemb...
gigyani Avatar
Posted By gigyani
Thu Apr 18 2019, 02:01 AM
STATREAD:MOV A, #WTCMD ;LOAD WRITE CO...