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Alternative of UDN2981

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LED dotmatrix is unable to display any character

Project Doubts (Author: vipinpathakg)
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how to use DAC in LPC2378

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Testing of 11.0592 MHz Crystal

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Last post by ExperimenterUK    Sat May 23 2015, 09:44 PM
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Can i get the simulation file for this project?

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Home automation

Project Doubts (Author: media1328)
Last post by ajay_bhargav    Sat May 16 2015, 07:44 AM
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home automation project

Project Doubts (Author: media1328)
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8051 microcontroller and Embedded System By Mazidi

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[Ebook] An Introductory Course *Best AVR Assembly course*

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Simple 3 Digit Temperature Meter





This project is a simple temperature meter using LM35 analog sensor connected to PIC microcontroller PIC16F676. The temprature is displayed on 3 digit 7-segment display. Project code is written in C language for CSS compiler for PIC. Here are few things that you can expect to learn from this project:

1. Using Analog port of PIC Microcontroller
2. Interfacing LM35 temperature sensor
3. Interfacing 7-segment display
4. Multiplexing multiple 7-segment display

Simple yet so much to learn in this project. If you are a starting to learn microcontrollers then this is your project. The download package also includes a proteus simulation so you can modify and test this code before building the actual hardware.

I want to thank Rakesh Suthar for submitting this project. I hope to see more learning oriented project from him.

Download Package Content:
  • main.c : Project C code
  • main.hex : Hex file
  • schematic.PDF : Schematic file
  • lm35-temp-meter.pdsprj : Proteus simulation Project file


If you have any questions or queries on this project feel free to ask in forum.

Download Here: Simple 3 Digit Temperature Meter

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LED Scrolling message Display using 8051





This Project is a scrolling LED matrix display project using 8051 (AT89S52) controller and 24C16 EEPROM. This LED matrix project is designed to work flexibly to handle 1x18 matrices of 8x8 LEDs or 1 to 29 matrices of 5x7 LEDs. The total matrices support can go higher if a controller with higher RAM is used. You do not need to do any change in the program for that. There is also a software provided to upload your message from PC to EEPROM.

This project is submitted by Pratik Suthar of Government Engineering Collage, Dahod (Gujrat). I really want to thank him for his contribution to Rickey's World.

Now a working video of the project:



Download this project: LED Scrolling message Display using 8051
Tags led matrixmatrix display8051 matrix displayscrolling message displayscrolling led matrix displayscrolling led display 8051
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Smart Home using GSM, Bluetooth and Android



This project demonstrates a great concept of Home automation using a Smart Home Device which can control things automatically by taking decisions based on sensor network and external events or manual control using your phone over Bluetooth or GSM. Which means if you are inside the house you can use You can control your appliances using bluetooth when outside use your GSM phone (over SMS).



This project uses AVR controller ATMega328 running Arduino firmware. There are a number of sensors connected to the controller some on GPIOs and some via Analog ports. Here is a short list of sensors:
1. Temperature Sensor (LM35)
2. PIR Sensor
3. Light Sensor (LDR)
4. GAS Sensor

Wireless modules used in this project:
1. SIM300 GSM Module (SIM900 can also be used)
2. HC-05 Bluetooth Module

There is also a provision for controlling 4 AC appliances. One LCD is also connected to show real-time status of all the sensors.

This project gives a good hands on practice on AVR controller and Arduino firmware programming. With various communication options one can get good experience on wireless communication. Further more there are endless possibilities of expanding this project. So you really need to turn your brains on and think of what more you can do with this.

Project also includes complete documentation including Synopsis, Project report and final presentation. But don't get carried away with these goodies. Learn and Build this project so it can benefit you in future

I really want to thank Gaurav Khadasane once again for submitting this wonderful project and bringing lot of things together to learn in a single project.

Go to download section to download this project: Smart Home using GSM, Bluetooth and Android

Finally the working Demo:

Tags bluetooth home automationhome automation using gsm modemsim900smart home using gsmsmart home project bluetoothandroid controlled smart homehome automation androidPIR sensorLPG gas sensorHC-05 bluetooth module
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Arduino based GPS data Logger


Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists and anyone interested in creating interactive objects or environments. This is a very simple project based on Arduino and GPS sheild combo. Arduino provides good set of libraries which are easy to use and you can include in your project without any hassle.



As GPS usually works on serial ports, Software emulated serial port is used to connect GPS with arduino running at 4800bps. The hardware serial port is connected to PC for serial data logging. A 16x4 LCD is used for displaying GPS data locally. LCD provides GPS information related to Latitude, Longitude, Altitude and speed.



Its a very good project for starters, who wants to get their hands on with Arduino. I would like to thank Santosh Mishra for submitting this project. Hope to see more contribution from him.

To download this project Please visit download section: Arduino based GPS data Logger

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Conversation

ExperimenterUK
Mon May 25 2015, 06:21 PM
@Subrat Sahu not a simple answer.Create a thread in "General help Guidance and Discussion" forum
Sun May 24 2015, 06:51 AM
Subrat Sahu
I have a confusion about 10 bit adc formula as describe bellow that resolution = Vref/1023 or Vref / 1024
ExperimenterUK
Sat May 23 2015, 08:54 PM
@utpal.. Create a thread in the Pic forum
Thu May 21 2015, 01:04 AM
utpal
i am a hobbist. i work on 8051. just i have started with pic 16f877. but a bitter experiance is going on. as i am programming any code to my pic877 and putting it in my board and it is working, but the 2nd time it is not taking any program,I have experimented just 7 new one pic mcus. result is the same. please tell me the reason. my programmer is TOP3000(universal programmer).
ajay_bhargav
Wed May 20 2015, 04:48 AM
@lak you can use the same code provided you are not using any s52 specific ports and registers.
Mon May 18 2015, 05:58 AM
lak
i used to develop a code for at89s52 shall i use the same code for at89c4051
Sun May 17 2015, 07:57 AM
Ayoosh
what if i have to rotate motor continuously at a step angle of 1.8 degree
ExperimenterUK
Fri May 15 2015, 06:02 PM
@oracle1946.. Post your question in the PIC forum
Fri May 15 2015, 03:48 AM
nadeem232
if some has solution kindly share solution Principles of Electric Circuits,by Thomas L. Floyd
oracle1946
Thu May 14 2015, 03:39 PM
I want to build a PIC16F684 sun logger using either a solar cell (0.5v solar cell or photoresistor). Any help out there?

Downloads

Comments

vipinpathakg
Wed May 27 2015, 05:57 AM
MuhammadTanvir
Sun May 24 2015, 11:02 AM
as_rog
Sun May 17 2015, 08:00 AM
oracle1946
Thu May 14 2015, 03:34 PM
kakaru32
Tue May 12 2015, 04:29 PM
Yateesh
Sat May 09 2015, 02:46 AM
scmg
Fri May 08 2015, 06:40 PM
OMERO
Fri May 08 2015, 11:53 AM

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Forum Activity
vipinpathakg Avatar
Posted By vipinpathakg
Wed May 27 2015, 04:25 PM
UDN2981 IC is not available in local market. pleas...
ajay_bhargav Avatar
Posted By ajay_bhargav
Wed May 27 2015, 02:17 PM
UDN2981 is required to drive the LED matrix, are y...
vipinpathakg Avatar
Posted By vipinpathakg
Wed May 27 2015, 06:28 AM
I have created all the hardware of 5x7 LED Dotmatr...
ExperimenterUK Avatar
Posted By ExperimenterUK
Mon May 25 2015, 06:16 PM
We need to do some simple tests.Get the speaker to...
mayank058 Avatar
Posted By mayank058
Mon May 25 2015, 04:57 AM
Dear sir, I am taking output from PI...
MuhammadTanvir Avatar
Posted By MuhammadTanvir
Sun May 24 2015, 11:11 AM
Hey guys !! Can somebody please share the proteus ...
ExperimenterUK Avatar
Posted By ExperimenterUK
Sat May 23 2015, 09:52 PM
Does the speaker work?.'Exactly' where on the boa...
ExperimenterUK Avatar
Posted By ExperimenterUK
Sat May 23 2015, 09:44 PM
For all your questions there is a proper, very tec...
mayank058 Avatar
Posted By mayank058
Thu May 21 2015, 04:46 AM
dear sir there is nothing to zip.I just...
ajay_bhargav Avatar
Posted By ajay_bhargav
Wed May 20 2015, 04:57 AM
can you zip your complete project and attach it he...