read barcode from image c#.net DESIGN DESCRIPTION 211 in Software

Draw Code 128C in Software DESIGN DESCRIPTION 211

DESIGN DESCRIPTION 211
Scan Code 128B In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Drawing Code128 In None
Using Barcode encoder for Software Control to generate, create Code 128 image in Software applications.
10.4 Design Description
Scan USS Code 128 In None
Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications.
Code-128 Generation In C#
Using Barcode creation for .NET Control to generate, create Code 128 Code Set C image in .NET applications.
Let us consider the details of the final design for the dice, based on the arguments in the last section. Figure 10.4 illustrates the schematic for the electronic dice. The processor we have used is an AT90S1200 in a 20-pin DIP package. In the circuit this is represented by U1. The reset components for the circuit are a 10-K resistor R4, a 0.1- F capacitor C4, and a SPST switch J1. As we have seen in a previous chapter, the reset for AVR controllers is active low. So the capacitor is connected from the RST pin of the processor to ground, and the 10-K resistor is connected between the 5-V supply to the RST pin. At power on or at any time the switch J1 is pressed, the capacitor is discharged, and when the switch is released, the capacitor charges up to the supply voltage with a time constant, in the present case, of 1 ms. This holds the RST pin at logic 0 sufficiently long to reset the processor. The clock for the circuit is derived from a 2-MHz crystal connected between the X1 and X2 pins of the processor. Capacitors C2 and C3 are required to allow the internal oscillator to oscillate. Typical values for C2 and C3 are between 10 and 33 pF. We have used 22 pF for these capacitors. Switch J2 is the input to the dice, and pressing it produces a new number and is displayed on the 7 LEDs. Normally, when a switch is connected to a processor circuit or a digital circuit in general, it is connected as illustrated in Figure 10.5. The resistor marked R pulls up the switch output to logic 1 and when the switch is not pressed, the logic level at the switch output is 1. This resistor is also called a pull-up resistor. When the switch is depressed, the output is grounded and the logic level changes to 0 till the switch is released.
Encoding Code-128 In .NET
Using Barcode generator for ASP.NET Control to generate, create Code 128 Code Set A image in ASP.NET applications.
Make Code 128 Code Set A In Visual Studio .NET
Using Barcode maker for .NET Control to generate, create Code 128 Code Set C image in .NET applications.
FIGURE 10.4 Schematic for the electronic dice.
Code 128 Code Set B Encoder In VB.NET
Using Barcode drawer for .NET Control to generate, create Code128 image in .NET framework applications.
Printing EAN / UCC - 14 In None
Using Barcode generation for Software Control to generate, create UCC-128 image in Software applications.
212 AVR PROJECT 1
Generate GS1 - 12 In None
Using Barcode drawer for Software Control to generate, create UCC - 12 image in Software applications.
Draw Code 39 Extended In None
Using Barcode generation for Software Control to generate, create Code39 image in Software applications.
R (10K typically)
Encoding Bar Code In None
Using Barcode maker for Software Control to generate, create barcode image in Software applications.
Draw Data Matrix ECC200 In None
Using Barcode printer for Software Control to generate, create ECC200 image in Software applications.
Switch Output
Making USS Code 93 In None
Using Barcode drawer for Software Control to generate, create Code 93 image in Software applications.
Reading European Article Number 13 In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.
FIGURE 10.5 A typical switch connection configuration for connecting to processors or a digital circuit.
EAN13 Printer In Objective-C
Using Barcode generation for iPad Control to generate, create EAN13 image in iPad applications.
Barcode Scanner In .NET Framework
Using Barcode decoder for .NET framework Control to read, scan read, scan image in .NET applications.
In the case of AVR processors, the logic circuit on each of the PORTB and PORTD pins can be programmed to have an internal pull-up resistor when the pin is configured as an input pin. This means an external pull resistor for a switch is not required, thus saving component count, board space, and, of course, cost. For our circuit, we have done exactly that connected the J2 switch to PORTD pin PD0 without any external pull-up resistor. The 7 output LEDs are connected to the PORTB pins PB0, PB1, and PB2 in groups of 1, 2, and 4 LEDs respectively. A resistor limits the current through each group of LEDs. For the LED connected to the PB0 pin, I have chosen to use a 1-K resistor, R3. This allows about 3.2-mA current through this LED (marked D1). PORTB pin PB1 drives the next group of 2 LEDs, D2 and D4, and R2 with a value of 470 ohms allows a total of 6.4 mA current to be shared by the two LEDs. The third group has 4 LEDs D3, D5, D6, and D7, and a 200-ohm resistance R1 limits the current through these LEDs. To light a group of LEDs, the corresponding port pin should be held at logic 0. I have chosen to use a common current-limiting resistor for the group of LEDs, though in principle we could use an independent resistor for each LED. However, that would increase the component count. Capacitor C1 is connected between the Vcc input pin of the processor and ground and is for power supply filtering. The circuit operates at 5-V supply voltage and can be derived from a variety of sources as discussed in a later section. This completes the description of our design. In the next section, we look at other possible implementations for the dice project.
ANSI/AIM Code 39 Reader In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
Decoding UCC.EAN - 128 In Visual Basic .NET
Using Barcode scanner for VS .NET Control to read, scan read, scan image in VS .NET applications.
Generate ECC200 In Java
Using Barcode maker for Android Control to generate, create Data Matrix 2d barcode image in Android applications.
GS1 128 Maker In Java
Using Barcode encoder for Android Control to generate, create EAN128 image in Android applications.
Copyright © OnBarcode.com . All rights reserved.