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Palindrome Check[updated with comments]

8051 Discussion Forum (Author: Rizz)
Last post by ExperimenterUK    Sat Jan 26 2019, 07:19 PM
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Hex file burning Problem

8051 Discussion Forum (Author: SONACHAI1234)
Last post by ExperimenterUK    Sun Jan 06 2019, 10:37 PM
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Heartbeat sensor with at89s52

Project Help (Author: sifirsekiz)
Last post by ExperimenterUK    Wed Dec 19 2018, 06:27 PM
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Need advise/ressources on a project

Project Help (Author: DrNossberg)
Last post by ExperimenterUK    Thu Sep 13 2018, 08:39 PM
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GSM based notice board

Project Doubts (Author: Sudhansudeep)
Last post by ExperimenterUK    Fri Sep 07 2018, 05:08 AM
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Free Keil C Modules for 8051.

8051 Discussion Forum (Author: Tressie)
Last post by ExperimenterUK    Mon Sep 03 2018, 01:01 AM
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ac motor controller using 8051

Project Doubts (Author: LAMBO)
Last post by ExperimenterUK    Tue Jul 17 2018, 08:31 PM
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Problem in interfacing ADC0808 with 89S52

Project Help (Author: Pater)
Last post by ExperimenterUK    Mon May 14 2018, 10:17 PM
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Not getting proper output from ADC0808

Project Help (Author: Pater)
Last post by ExperimenterUK    Mon May 07 2018, 07:27 PM
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Serial UART timeout

8051 Discussion Forum (Author: kmag1953)
Last post by ExperimenterUK    Mon Apr 30 2018, 06:59 PM
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Need help in serial programming using SBUF register !!!!

Project Help (Author: Pater)
Last post by ExperimenterUK    Mon Apr 23 2018, 08:51 PM
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This project is a simple GSM Based project where 20x4 LCD is used as display for Notice board and GSM modem is used for receiving and sending SMS. When a user wants to display a notice/message on the notice board, user will send sms from a verified mobile number and sms recevied is displayed on LCD. Project involves simple security feature where SMS sender's number is compared with a pre-configured number (hardcoded in source code). If sms is recevied from an unknown sender, a notification SMS is sent to pre-configured number notifying an invalid access to board.

This project is fairly simple but its main purpose is to demonstrates reading and sending SMS using GSM Modem. There are many users on forum who struggles getting SMS read working in their projects. So For them this project is a starting point.

I want to thank Kiran Gowle (kirangowle) for submitting this project. I am sure his contribution will help many others on this website. If you have any queries regarding this project, Please feel free to post in forum.

Go to download section to download this project:

GSM Notice Board
Tags gsm notice board8051 gsm projectsimcom 8051sim900 8051sim300 8051
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Our robot expert Gaurav Khadasane has come up with another innovative way to control a robot. He is controlling his robot from an android phone (with a Android GUI application) over bluetooth. Project uses our favourite 8051 microcontroller and HC-05 bluetooth module.

In this project 8051 and bluetooth module are communicating over uart @9600bps. Bluetooth module HC-05 is controlled via simple AT commands. This module comes in SMD package and works on 3.3v power supply. The BT module is a SPP supported profile so it can be connected easily to any controller or embedded device. In this profile the data sent and receive to module directly comes on the RX pin of microcontroller. It becomes really easy to make your device bluetooth compatible.

L293D H-Bridge motor driver are used to control two DC motors. A readymade compact size chassis is used to avoid the chassis assembly comlexities The chassis contains 2 decks the lower is used for BO motors fitting the upper is used as a battery stack. On top plate the controller board is mounted by screw fitting.

Finally the Android application, You can get Bluecontrol app from Google Play



Here is a working video of the project



If you have any doubts or comments Please use forum... Enjoy bulding robots

Please use download link below to download this project.
Android controlled robot using 8051 and bluetooth
Tags Android controlled robotandroid robot using 8051android bluetooth robot8051 bluetooth control8051 bluetooth android robot8051 bluetooth robot
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This project is an extention to previously uploaded "GSM Controlled Robot". Earlier project was only designed to be controlled using a mobile or GSM device whereas this project extends the control capabilities to custom designed RF Remote and A glove with Accelerometer.



This project is devided into two sections
1. Control/Encoder unit
2. Robot Unit

Control unit uses 433Mhz RF modules for sending control data to robot. Control unit receives data from either remote or an accelerometer module. Robot unit is actually the receving device which can receive data from either gsm device or RF recevier. Both RF reciever and GSM device send same kind of signals to control motors.

Control/encoder unit uses 8051 controller and its code is written in assembly whereas Robot unit uses AVR microcontroller, its source is written in C language. If you have already built the old GSM controlled robot then upgrading to this version of robot will not be difficult at all.

I have also added original project report came with GSM controlled robot, You can add more information in this project report to complete final report.

Here are working videos of project:

Multicontrol Robot - Control by Acclerometer



Multicontrol Robot - Control By Remote



Click download link below to download this project:
Multicontrol Robot - Control by GSM, Remote or Acclerometer

I would like to thank Gaurav Khadasane for submitting this project we would like to see more projects from you.
Tags multicontrol robotgsm controlled robotgsm controlled car8051 accelerometer8051 remote carrf controlled car
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Hi Friends, Its been a long time since I've been to website. But There were few main things that I was suppose to do a long time back. Here is a new year surprise for you all. Viktor has share another project with us a great design with practical use. An 8051 based Solar tracker with source written in assembly language. Viktor explains basic operation of this project.

PRINCIPLE OF OPERATION
The circuit comprises of three sections:
  1. light controlled circuit
  2. counter for timer
  3. switching circuit


1. Light controlled circuit:

This particular circuit controls other circuits. It puts the other circuit on or off depending the nature of the day. It comprises of LDR and transistor representation of smith trigger configured using two npn transistor(BC377) such that when there is a small potential difference across the LDR and variable resistor, The relay will be triggered to switch on other circuit. This circuit monitors day and night. The main function of this monitor is put off the device at night and turn it on in the mornining again.

2. counter for timer:
Since sun start from the east at 6:45am and set at exertly 12:45pm, the light controller circuit put on the whole circuit automatically making the timer to initialize its 6hrs counting sequence.

3. switching circuit:
This circuit is mainly used to control the direction of panel using a DC Actuator motor. Microcontroller AT89C2051 gets input from east and west Light control circuit and adjust panel to face sun direction.

Type of motor used:
24-36v d.c Actuator from super jack used in tv satalite dish polar adjustment

You can download project here:
Time Controlled Solar Tracking System (Assembly)
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Conversation

ExperimenterUK
Mon Jan 07 2019, 03:31 AM
@REVOCATUS please post in the AVR forum
Mon Dec 24 2018, 09:25 AM
REVOCATUS MATEMU
sorry I mean referee boards for player substitution
Mon Dec 24 2018, 09:24 AM
REVOCATUS MATEMU
hi am.looking how to build referee by using Atmega 328 and its codes
Sat Dec 15 2018, 01:45 PM
Arslan ayoub
Hii ,, can I get the simulation of numeric keypad lock on proteus
ExperimenterUK
Mon Dec 03 2018, 05:17 PM
Please post questions in the forum. The chat box is for chat
Mon Dec 03 2018, 06:43 AM
help!me!
help! I don't understand busy flag!
Sun Dec 02 2018, 08:01 PM
ile
hello
Mon Nov 12 2018, 05:58 AM
Pavan_user
i have seen your replica of I2C programming using AT89C51 but i am unable to understand the "ack_bit" variable usage ...looks like it is always 1...can you elaborate how acknowledgment is working....
bgk3678
Tue Nov 06 2018, 02:36 PM
kindly any one give solution for my problem
ExperimenterUK
Mon Nov 05 2018, 09:48 PM
Pins high is the normal state. You need a program to set them low

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Comments

the_Doker
Thu Feb 14 2019, 02:21 PM
XanZes
Thu Feb 14 2019, 01:02 AM
dominicchiori
Wed Feb 06 2019, 01:41 AM
tandong
Sun Jan 27 2019, 01:38 PM
Rizz
Fri Jan 25 2019, 06:24 PM
Kheirodin
Tue Jan 22 2019, 11:54 PM
garfield0929
Sun Jan 20 2019, 12:48 AM
servprov
Thu Jan 17 2019, 06:44 AM

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ExperimenterUK Avatar
Posted By ExperimenterUK
Sat Jan 26 2019, 07:19 PM
Yes that helps a lot.At first sight I can't see th...
Rizz Avatar
Posted By Rizz
Sat Jan 26 2019, 06:43 AM
@ExperimenterUK I have updated the post with more ...
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Posted By ExperimenterUK
Sat Jan 26 2019, 02:30 AM
What is your definition of a Palindrome ?The ones ...
Rizz Avatar
Posted By Rizz
Fri Jan 25 2019, 06:31 PM
I have written a code to check if a number is a pa...
ExperimenterUK Avatar
Posted By ExperimenterUK
Sun Jan 06 2019, 10:37 PM
Which 8051 chip are you using ?
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Posted By SONACHAI1234
Sun Jan 06 2019, 08:21 AM
Hi,By mistakenly i burn rx program in my 8051 micr...
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Posted By ExperimenterUK
Wed Dec 19 2018, 06:27 PM
Nobody knows?sifirsekizThe problem is that you are...
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Posted By sifirsekiz
Wed Dec 19 2018, 12:15 PM
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Posted By sifirsekiz
Sun Dec 16 2018, 11:13 PM
Guys pleaseeeee :((
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Posted By sifirsekiz
Sat Dec 15 2018, 07:09 PM
HiThe pulse-sensor-amped has an analogue output.Th...