how to connect barcode scanner to visual basic 2010 BUILD CUSTOM LEGO-BASED ROBOTS in Software

Creation Data Matrix ECC200 in Software BUILD CUSTOM LEGO-BASED ROBOTS

152 BUILD CUSTOM LEGO-BASED ROBOTS
Data Matrix Scanner In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
ECC200 Encoder In None
Using Barcode printer for Software Control to generate, create ECC200 image in Software applications.
On underside
Data Matrix 2d Barcode Reader In None
Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications.
Creating ECC200 In C#.NET
Using Barcode printer for .NET Control to generate, create DataMatrix image in Visual Studio .NET applications.
On underside
Create Data Matrix In Visual Studio .NET
Using Barcode creation for ASP.NET Control to generate, create Data Matrix ECC200 image in ASP.NET applications.
ECC200 Encoder In Visual Studio .NET
Using Barcode generation for .NET framework Control to generate, create Data Matrix ECC200 image in .NET framework applications.
FIGURE 12.4 Pepbot main construction. See text for the construction sequence.
Data Matrix Printer In Visual Basic .NET
Using Barcode creator for .NET Control to generate, create Data Matrix ECC200 image in Visual Studio .NET applications.
Encode GS1-128 In None
Using Barcode encoder for Software Control to generate, create EAN128 image in Software applications.
Side view
Encoding EAN-13 In None
Using Barcode generator for Software Control to generate, create EAN13 image in Software applications.
DataMatrix Generation In None
Using Barcode generator for Software Control to generate, create ECC200 image in Software applications.
Top view
Encoding Code-128 In None
Using Barcode creator for Software Control to generate, create Code 128 Code Set B image in Software applications.
Generate Code 39 Full ASCII In None
Using Barcode maker for Software Control to generate, create Code-39 image in Software applications.
FIGURE 12.5 Construction of Pepbot side blocks.
Creating 2 Of 7 Code In None
Using Barcode maker for Software Control to generate, create Codabar image in Software applications.
Creating Data Matrix 2d Barcode In Objective-C
Using Barcode maker for iPad Control to generate, create Data Matrix ECC200 image in iPad applications.
ATTACHING THE SERVO MOTORS
Code 39 Extended Generator In .NET
Using Barcode generation for .NET Control to generate, create Code 39 image in Visual Studio .NET applications.
EAN 128 Drawer In Java
Using Barcode generator for Java Control to generate, create GS1 128 image in Java applications.
The Pepbot uses two modified R/C servos for drive motors. In an ordinary servo, rotation is limited by an internal stop inside the motor. By modifying the servo, you can make the motor turn continuously. Modifying servos is not a particularly hard task, but the exact steps will vary depending on the model of servo you are using. See 20 for details on how to modify several popular R/C servos. For the rest of this section, we ll assume you ve already modified two servos and are ready to use them on the Pepbot. Use epoxy or hot-melt glue to affix two 2u-by-6u plates to the side of each servo casing, as shown in Fig. 12.6. Use only a moderate amount of epoxy or hot-melt glue, as you may need to remove the plate from the servo casing. For one servo, glue the plate to the right side (looking at the servo top down, with the output shaft on the top). For the other servo, glue the plate to the left side. Be careful to align the plates on the servos so they are
Code 128 Creation In Objective-C
Using Barcode generation for iPhone Control to generate, create Code128 image in iPhone applications.
GTIN - 12 Generation In Java
Using Barcode generator for Android Control to generate, create GS1 - 12 image in Android applications.
BUILD THE LEGO PEPBOT
Recognize Bar Code In Java
Using Barcode Control SDK for BIRT reports Control to generate, create, read, scan barcode image in BIRT applications.
Data Matrix 2d Barcode Maker In Java
Using Barcode generation for Android Control to generate, create ECC200 image in Android applications.
Plate
Servo Bottom view
FIGURE 12.6 Attaching servo motors to LEGO plates.
Top view
FIGURE 12.7 Securing the mounted motors to the rest of the robot.
straight, and make sure the plate doesn t block the seam in the case of the servo (this will make it easier to disassemble the servo, if you need to for whatever reason). Hot-melt glue is the preferred construction technique for this task, as the glue sets quickly usually in under a minute in normal room temperature. Hold the servo in place until the glue has set. Again, be absolutely sure that the plate is squarely affixed to the servo. After the glue has set and dried, you may attach the servos (now on their motor mounts) to the frame of the robot, as shown in Fig. 12.7, using two 2u-by-12u plates.
ATTACHING THE WHEELS
The wheels of the Pepbot are lightweight foam tires, which are used in model R/C airplanes. I selected wheels with a 3-inch diameter, which makes the Pepbot travel fairly fast across the floor (hence the name Pepbot). You can use smaller wheels if you wish, but consider the following:
I The smaller the wheel, the slower the robot. R/C servo motors turn at about 1 2 revo-
lutions per second, depending on the model (some are slower; some are faster). With 3inch wheels and a 1.5 rps servo, the Pepbot will travel about 14 inches per second. This speed is calculated by multiplying the diameter of the wheel (3) by pi (3.14), then multiplying that number by the speed of the servo (1.5 rps). That is, 3 * 3.14 * 1.5, or approximately 14. Just as smaller wheels will make Pepbot a little less peppy, larger wheels will make Pepbot travel faster. I The smaller the wheel, the less clearance there is between the bottom of the robot and the floor. Conversely, the larger the wheel, the more clearance there will be. This can be helpful if you run Pepbot over thick carpet or want it to travel over small bumps, like the threshold between a carpeted and a tile room. I The design of the Pepbot will not allow tires smaller than about 2 3/4 inches because of the position of the servo motor output shafts. You ll have to redesign Pepbot if you want to use smaller wheels.
154 BUILD CUSTOM LEGO-BASED ROBOTS
To attach the wheels, first insert the standard 1-inch servo plate over the output shaft of the servo. This plate connects firmly to the output shaft using a screw, which is provided with the servo. Then, use epoxy or hot-melt glue (hot-melt glue is preferred) to secure the hub of the wheel to the plate that is connected to the servo. Be absolutely sure that the wheel hub is exactly centered over the servo plate; if it is not, the robot will not travel in a straight line.
Copyright © OnBarcode.com . All rights reserved.