Welcome to laros-education
Welcome to LarOs - eDucation
This web site is dedicated for all visitors and we'll give free tutorials about electronics and computer enginering.
The tutorials is exclusively to the Electronic projects such as MCS51 and AVR mirocontroller and related products (both hardware and software). This includes the traditional 8052, 8051, 8032, and 8031 along with more modern derivatives such as the Atmel AT89S51,AT89S52,AT89S53,AT89S8252, AVR ( AT90S series ) and many derivatives by Silicon Laboratories, Philips, and many others.
We have a tutorial section for the programmer or student that is just learning about the MCS-51 and AVR microcontroller. We have a reference section for the proficient developer who just needs to access some quick reference information.
Please spread the word about this site to friends and coworkers. Feel free to link to it on your web pages. If you have code or literature that you'd like to contribute to the site please contact us--we're interested in any and all material that we can get our hands on to pass on to other users of this site.
laros-edu team 2008
Interfacing Dot Matrix Display 5x7
What makes the text scrolling on the
silicon chips? The heart of scrolling display is dot matrix led display
unit. One or more dot matrix display is multiplexed to form a display
panel. A set of hex values define a character which are send to the dot...
Interfacing AT89C51 with Nokia 3310 LCD
In this tutorial we will interface Nokia 3310 LCD
with AT89C51.The Nokia 3310 LCD is based on a PCD8544 48x84 pixels matrix LCD controller.
Pin Diagram
Circuit Diagram
NOTE:Nokia 3310 LCD works on voltage level of 3.3v.To get this voltag...
How Controling Electronic Equipment via Telephone Network
Discusses how to utilize the telephone network to control electronic equipment. This allows remote control equipment ... Utilize the facility with the DTMF signals on the phone network The schematic on figure below...please spread to your friends a...
Interfacing the DS1307/1308 ( RTC )with 8051 Microcontroller and over PC Serial Port
INTRODUCTION The DS1307 Serial Real Time Clock, which incorporates a 2–wire
serial interface, can be controlled using an 8051–compatible.
The DS1307 is connected directly to two of the I/O ports on a microcontroller...
Display Keypad 4 x 4 with 8x7 Seven Segmen
Continuing your sucsess, will try your knowledge with more
complex experiment by read out the keypad 4 x 4 data with 8x7 Seven
Segmen.
Figure 2.8.4.Keypad Connection to Microcontroller with
8x7 segmen
Step 1st ...
Display Keypad 4 x 4 with LCD Character 2 x16
After doing lesson 2.8.1. you can see that how easy to scan keypad
and read data out to LED. In this lesson it's look like lesson 2.8.2.
but the data will read out with LCD Character 2 x16.
Figure 2.8.3.Keypad Connection to Microcon...
Display Keypad Data to LED
In this lesson we are like to design, how to scan keypad
4 x 4, and then display it to LED.
Figure 2.8.2. Keypad connection and display to LED
Step 1st Build the circuit as shown in figure 2.8.2. As you seen on figure 2.2.8.
P3.0...
K E Y P A D 4 x 4 (2)
Keypads are often used as a primary input device for
embedded microcontrollers. The keypads actually consist of a number
of switches, connected in a row/column arrangement as shown in Fig 2.8.1.
In order for the microcontroller ...
Generating a Stair Step Voltage from DAC
In this lesson we are like to design, how to generate
stair step voltage from 0volt trough 5 volt, with resolution 1 volt
each step. There is something you must to do is to calculate the konstanta
K, as you have learn...
Simple Experiment to Generate a Voltage from DAC
In this lesson we are like to design, how to generate
a voltage 2 volt from DAC0808. There is something you must to do is
to calculate the konstanta K, as you have learned in previous lesson.Step 1st Build the circuit as shown i...
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