a circus freak has a 3rd leg

a circus freak has a 3rd leg

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Download free ebook for COMPUTER AND INTERNET

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====COMPUTER====


Computer Network 4th Edition (chm)

Author: Andrew S. Tanenbaum



Mobile Phone Programming and its Application to Wireless Networking (pdf)

Author: Frank H.P. Fitzek (Aalborg University Denmark), Frank Reichert (Norway Agder University College)


Smart Card Handbook 3rd edition (pdf)

Author: Wolfgang Rankl and Wolfgang Effing (Giesecke & Devrient GmbH, Munich, Germany)


Smart Cards: The Developer's Toolkit (pdf)

Author: Bertrand du Castel Schlumberger Fellow (Head of Smart Card Research)

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Download free ebook for ART OF HACKING

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====HACKING====


HACKING SECRETS REVEALED (pdf)

Author: Production of S&C Enterprises


Hacker's Delight (chm)

Author: Henry S. Warren

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Download free ebook for LANGUAGE PROGRAMMING

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====PROGRAMMING====


Visual C++ 6, in 21 Days (pdf)

Author: Davis Chapman


Visual C++ 6: The Complete Reference (chm)

Author: Chris H. Pappas and William H. Murray


Programming C#, 4th Edition (chm)

Author: Jesse Liberty



Teach Yourself JAVA in 21 Days (pdf)

Author: Laura Lemay & Charles L. Perkins


Java™ How to Program, 6th Edition (chm)

Author: H.M.Deitel-Deitel & Associates, Inc., P. J. Deitel-Deitel & Associates, Inc
Author: Arry Ullman


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Download free ebook for SOFTWARE TUTORIAL BOOKS

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====TUTORIAL BOOKS====

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Download free ebook for CONTROL ENGINEER

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====CONTROL ENGINEER====


Modern Control Theory (pdf)

Author: Prof. Zdzislaw Bubnicki, PhD


FUZZY LOGIC for Embedded Systems Applications (pdf)

Author: Ahmad M. Ibrahim, Ph.D. (Senior Member, IEEE)


Neural Network Design (pdf)

Author: Martin T. Hagan, Howard B. Demuth & Mark Beale


PID Control for Multivariable Processes (pdf)

Author: Qing-GuoWang & Zhen Ye


Reconfigurable Distributed Control (pdf)

Author: He´ctor Benı´tez-Pe´rez and Fabia´n Garcı´a-Nocettiti
Author: Su Whan Sung, Jietae Lee & In-Beum Lee


 

PID Controllers: Theory, Design and Tuning 2nd edition (pdf scan)

Author: Karl J. Astrom and Tore Hagglund


MULTIVARIABLE FEEDBACK CONTROL Analysis and design (pdf)

Author:

Sigurd Skogestad (Norwegian University of Science and Technology), Ian Postlethwaite (University of Leicester)


Handbook of PI and PID Controller Tuning Rules 2nd edition (pdf)

Author: Aidan O'Dwyer (Dublin Institute of Technology, Ireland)


PID Control New Identification and Design Methods (pdf)

Author: Michael A. Johnson and Mohammad H. Moradi




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Download free ebook for ROBOTICS

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====ROBOTICS====


Mechatronics Principles and Applications (pdf)

Author: Godfrey C. Onwubolu (Professor of Engineering The University of the South Pacific, Fiji)


ROBOT BUILDER’S BONANZA 3rd edition (pdf)


Author: GORDON McCOMB and MYKE PREDKO


Robot Manipulator Control Theory and Practice 2nd edition Revised and Expanded (pdf)

Author:

Frank L.Lewis (University of Texas at Arlington Arlington, Texas, U.S.A.)

Darren M.Dawson (Clemson University Clemson, South Carolina, U.S.A.)

Chaouki T.Abdallah (University of New Mexico Albuquerque, New Mexico, U.S.A.)



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Download free ebook for PROGRAMMABLE LOGIC CONTROLLER (PLC)

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====PROGRAMMABLE LOGIC CONTROLLER (PLC)====


Programmable Controllers An engineer’s guide 3rd edition (pdf)

Author: E.A. Parr, MSc, CEng, MIEE, MInstMC


Programmable Logic Controllers: Programming Methods and Applications (pdf)

Author: John R. Hackworth and Frederick D. Hackworth, Jr.


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Download free ebook for ELECTRICITY, DIGITAL AND ELECTRONIC

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====ELECTRICITY, DIGITAL AND ELECTRONIC====


Digital Interface Handbook, 3rd edition (chm)


Author: Francis Rumsey & John Watkinson


PRINCIPLES OF MODERN DIGITAL DESIGN (pdf)

Author:

Parag K. Lala Cary and Lois Patterson (Chair of Electrical Engineering Texas A&M University–Texarkana)


PRACTICAL ELECTRONICS HANDBOOK, 6th edition (pdf)


 Author: IAN R. SINCLAIR & JOHN DUNTON


Electronics Projects for Dummies (pdf)


Author: Earl Boysen and Nancy Muir


Self-Organization in Sensor and Actor Networks (pdf)

Author: Falko Dressler (University of Erlangen, Germany)


Radio and Electronics Cookbook (pdf)


Author: Dr George Brown, CEng, FIEE, M5ACN

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Download free ebook MICROCONTROLLER AND EMBEDDED SYSTEM

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 ====MICROCONTROLLER AND EMBEDDED SYSTEM====


Embedded C Programming and the Atmel AVR, 2nd edition (pdf)

Author: Richard Barnett, Larry O'Cull and sarah Cox


The 8051 Microcontroller (pdf)

Author: I. Scott MacKenzie


Systems Design & the 8051 (pdf)


Author: Marcus O.Durham PhD


The 8051 Microcontroller Architecture, Programming and Application (pdf)

Author: Kenneth J. Ayala (Western Carolina University)


8051 Microcontrollers An Applications-Based Introduction (pdf)

Author: David Calcutt, Fred Cowan and Hassan Parchizadeh


Embedded Microcontroller Interfacing Designing Integrated Projects (pdf)

Author: Gourab Sen Gupta and  Subhas Chandra Mukhopadhyay


Exploring C for Microcontrollers A Hands on Approach (pdf)


Author:

JIVAN S. PARAB (Goa University India), VINOD G. SHELAKE (Shivaji University, Kolhapur, India), RAJANISH K. KAMAT (Shivaji University, Kolhapur, India), GOURISH M. NAIK (Goa University India)


Embedded C (pdf)

Author: Michael J. Pont


Embedded Multitasking (pdf)

Author: Keith Curtis


The PIC Microcontrollers (pdf)


Author: Nebojsa Matic


Microcontroller Programming The Microchip PIC® (pdf)

Author:

Julio Sanchez (Minnesota State University, Mankato) and Maria P. anton (South Central College, North Mankato, Minnesota)


Designing Embedded Processors A Low Power Perspective (pdf)

Author:

J. HENKEL (University of Karlsruhe, Germany) and S. PARAMESWARAN (University of South Wales, NSW, Australia)


Microcontrollers Fundamentals for Engineers and Scientists (pdf)

Author:

Steven F. Barrett (Department of Electrical and Computer Engineering, University of Wyoming, Laramie, Wyoming USA)


Daniel J. Pack (Department of Electrical Engineering, United State Air Force Academy, Colorado Springs, Colorado, USA)


Advanced Microelectronics (pdf)

Author: K. Itoh, T. Lee, T. Sakurai, W. M. C. Sansen D. and  Schmitt-Landsiedel

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ohm law

Ohm's law states that the current through a conductor between two points is directly proportional to the potential difference across the two points. Introducing the constant of proportionality, the resistance, one arrives at the usual mathematical equation that describes this relationship:

I = \frac{V}{R}
where I is the current through the conductor in units of amperes, V is the potential difference measured across the conductor in units of volts, and R is the resistance of the conductor in units of ohms. More specifically, Ohm's law states that the R in this relation is constant, independent of the current.
The law was named after the German physicist Georg Ohm, who, in a treatise published in 1827, described measurements of applied voltage and current through simple electrical circuits containing various lengths of wire. He presented a slightly more complex equation than the one above (see History section below) to explain his experimental results. The above equation is the modern form of Ohm's law.

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Wheatstone bridge

Wheatstone bridge is a measuring instrument invented by Samuel Hunter Christie in 1833 and improved and popularized by Sir Charles Wheatstone in 1843. This is used to measure an unknown electrical resistance by balancing two legs of the bridge, one leg that includes the components known. it works similar to the original potentiometer.





Basic law of electric circuits associated with the Wheatstone bridge:



1. Ohm's Law

Ohm's Law states "If an electric current through a conductive, the current strength is proportional to the voltage-larus contained between the two ends of Conductor earlier."



This law was coined by Georg Simon Ohm, a physicist from Germany in 1825 and published in a paper entitled The Galvanic Circuit Investigated Mathematically in 1827.






The formula for Ohm's Law



Mathematically, Ohm's law is written



V = I.R

or

I = V / R



where


I = electric current that flows in a Conductor (Ampere)

V = voltage found on both ends of the Conductor (Volt)

R = electrical resistance found in a Conductor (Ohm)



2. Kirchoff Law I

Mid-19th century, Gustav Robert Kichoff (1824-1887) found a way to determine the electric current in the circuit branch which became known to the law of Kirchoff. Kirchoff law reads "The number of strong currents that enter the branching point equal to the amount of flow coming out strong from the point of branching."



The number I enter = I out



3. Kirchoff Law II


Kirchoff Law II reads, "In a closed circuit, the algebraic sum emf (E) and total potential drop equal to zero."



Purpose of the total potential drop equal to zero is the absence of electrical energy is lost in the circuit or in the sense that all energy can be used or absorbed.

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Download 8051 C-Compiler & Assembler (Keil)

8051 C-Compiler & Assembler Kit

The CA51 Compiler Kit for the 8051 microcontroller family supports all 8051 derivatives including those from companies like Analog Devices, Atmel, Cypress Semiconductor, Dallas Semiconductor, Goal, Hynix, Infineon, Intel, OKI, Philips, Silicon Labs, SMSC, STMicroelectronics, Synopsis, TDK, Temic, Texas Instruments, and Winbond.
The following components are included in the CA51 8051 C-compiler & Assembler Kit:

C51 C Compiler

The Keil C51 C Compiler for the 8051 microcontroller is the most popular 8051 C compiler in the world. It provides more features than any other 8051 C compiler available today.
The C51 Compiler allows you to write 8051 microcontroller applications in C that have the efficiency and speed of assembly language. Language extensions in the C51 Compiler give you full access to all resources of the 8051.
C51 translates C source files into a relocatable object module. When the DEBUG control is used, the object file contains full symbolic information for debugging with the µVision3 Debugger or an in-circuit emulator. In addition to the object file, the C51 Compiler generates a listing file which optionally may include symbol table and cross-reference information.

Features

  • Nine basic data types, including 32-bit IEEE floating-point
  • Flexible variable allocation with bit, data, bdata, idata, xdata, and pdata memory types
  • Interrupt functions may be written in C
  • Full use of the 8051 register banks
  • Complete symbol and type information for source-level debugging
  • Use of AJMP and ACALL instructions
  • Bit-addressable data objects
  • Built-in interface for the RTX51 real-time operating system
  • Support for dual data pointers on Atmel, AMD, Cypress, Dallas Semiconductor, Infineon, Philips, and Triscend microcontrollers
  • Support for the Philips 8xC750, 8xC751, and 8xC752 limited instruction sets
  • Support for the Infineon 80C517 arithmetic unit

download here:
KeilCompiler8051

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Make login form and get user id login to next form on visual basic

make a login form on visual basic it's so easy, but we can make some creation to make an user id can identifiying on the next form,
follow thats instruction:
1. create new project, choice vb enterprise edition control
2. go to Project, references, include that :
- visual basic for apps
- visual basic runtime object and procedure
- ole automation
- microsoft access 9 object library
- microsoft activex data objects 2.51 library
- microsoft DAO 3.51 objects library
- microsoft data binding collection
3. add 2 form, login form and main form
4. on the login form, add 2 text and 2 command button, the include this code :

Private Sub form_load()
'open connection to db
cn.Open ("Provider= Microsoft.Jet.OLEDB.4.0;Persist security info=False;Data Source=" & App.Path & "\database.mdb" & ";Jet OLEDB:Database;")
End Sub

Private Sub Command1_Click()
'access table user "tbuser", with "if id=text1 anf password=text2", if one of them not correct then login would fail
rs.Open "Select*from tbuser where id='" & Text1.Text & "' AND Password ='" & Text2.Text & "'", cn, 3, 3
If rs.EOF Then
'EOF yaitu end of field or if did'nt find
MsgBox "ID not registered or incorrect password", vbOKOnly + vbExclamation, "Attention !"
Text1.Text = ""
Text2.Text = ""
'clear text1 and text2
rs.Close
'close
Else
'-----------------------------------------------------------------
'use this code to get user login name
With rs
strid_user = !id 'set strid_user same as id login
End With
rs.Close 'close recordset
'============
Unload Me 'close form login
Main.Show 'show form main
End If
End Sub

Private Sub Command2_Click()
cn.Close
Unload Me
End Sub

Private Sub Text1_KeyPress(KeyAscii As Integer)
' Enter
If KeyAscii = 13 Then
'TAB
SendKeys vbTab
End If
End Sub

Private Sub Text2_KeyPress(KeyAscii As Integer)
If KeyAscii = 13 Then
'TAB
SendKeys vbTab
End If
End Sub

5. on the main form add timer1, label 10, label11, label12, then include this code :
Private Sub form_load()
'load eeverything here
'show day
Ahari = Array("Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday")
SHari = Ahari(Abs(Weekday(Date) - 1))
'chow info
Label17 = "information of form"
'show user as login
Label10 = strid_user
'show date
Label12 = "" & SHari & ", " & Format(Date, "dd-mm-yyyy")
'call timer to show time
Timer1.Enabled = True
End Sub

Private Sub Timer1_Timer()
Label11 = Format(Time, "hh:mm:ss")
End Sub
6. make a module then include this :
Public cn As New ADODB.Connection
Public rs As New ADODB.Recordset

Public strid_user As String
7. dont forget include database.mdb on link download bottom, and run your project, use p id = a pass = a...

good luck

still dizzy, get project and learn...
download here : (use pass : do-stupid-things.blogspot.com
login as user_pass_do-stupid-things.blogspot.com.rar - 31 KB

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how to print all data in rich textbox on Visual Basic

now.., if you think to print all data on a richtextbox is a hard to do, you wrong just foolow that steps:
1. create new project
2. create new form, richtextbox, and one command1 button then include that code :

Private Sub Command1_Click()
Printer.FontName = "Courier New" 'font type
Printer.FontSize = "9" 'size
Printer.Print RichTextBox1.Text 'print all
'to printer
Printer.EndDoc
End Sub


3. turn on your printer, run your project, click command

good luck

just download the project : (use password : do-stupid-things.blogspot.com)
Print all in Rich TextBox.rar

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Different of vbmodal, vbmodeles and only form show on visual basic

sometimes we need to create new form without close another or a form cannot be touched before new form closed, follow steps :
1. create new project
2. create form1, command1, command2, command3 on the form, include the code :

Private Sub Command1_Click()
Form2.Show vbModeless, Me
End Sub

Private Sub Command2_Click()
Form2.Show vbModal, Me
End Sub

Private Sub Command3_Click()
Form2.Show
End Sub

3. create form2, and run your project, looks the different

good luck

just download the project : (use password : do-stupid-things.blogspot.com)
different of vbmodal, vbmodeles and only form show on visual basic

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Download Proteus 7.8 sp2 10468 x86 2011 + Crack




Now it has come Proteus 7.8 sp2 is newer and has a complete library, Proteus is a software used to design electronic circuits and can be simulated, the thing that distinguishes and very interesting from proteus 7.8 sp2 with microcontroller simulation source code from another program ex: codevision AVR can be performed, not only that proteus also able to design pcb layout.

please download here, really free
Proteus 7.8 SP2 7.8sp2 10468 x86 2011 + Crack | 104MB

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The basic of controlling servo motor using Atmega Series microcontroller

Servo motor is a important part in world technology, but using that is so different with other motor types, every angle of rotation must be controlled by digital signal for example, using microcontroller ( in this section we would use parallax servo motor type standard )



Now, by using CodevisionAVR, please follow instructions :
1. create new project by codevisionavr, set PORTA as output (0) and PORTD as input (T)
2. enter code declaration and go to global variable in codevisionavr :

#include <mega8535.h>
#include <delay.h>
#define servo PORTA.0
// Declare your global variables here
char i,j;

// instruction to moving servo here, void called by command while(1)
void center(char j) // center
{
for(i=0;i<j;++i)
{
servo=1;
delay_us(1500);
servo=0;
delay_ms(20);
}
}

void full_cw(char j) //rotate 180 degree CW
{
for(i=0;i<j;++i)
{
servo=1;
delay_us(2400);
servo=0;
delay_ms(20);
}
}

void full_ccw(char j) //rotate180 degree CCW
{
for(i=0;i<j;++i)
{
servo=1;
delay_us(600);
servo=0;
delay_ms(20);
}
}
// end perintah

/********standard of servo parallax
 1000us(0derajat)-2000us(180degree),
so each degree 2000-1000=1000us/180degree=5,56us
example we should rotate to 45 degree
it means the pwm to put is 45*5,56=250,2us+1000us=1250,2us
so if you want to move 45 degree give pwm 1250,2us
more example to 130degree:130*5,56=722,8us+1000us=1722,8us
you should give1722,8us
****/

3. then put this code to while (1)

// Place your code here  
      if (PIND.0==1)
      {
      full_cw(40);
      }
      else if (PIND.1==1)
      {
      full_ccw(40);
      }
      else
      {
      center(40);
      }

4. build all and simulated to proteus 7.7 (on this file)

please download the source code here
project atmega8535 codevisionAVR basic servo motor standard1.rar - 42 KB
good luck

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