birt barcode open source BEYOND LEGO MOTORS in Font

Encoder QR Code ISO/IEC18004 in Font BEYOND LEGO MOTORS

CHAPTER 12 BEYOND LEGO MOTORS
Making Quick Response Code In None
Using Barcode drawer for Font Control to generate, create QR Code image in Font applications.
www.OnBarcode.com
Creating EAN 128 In None
Using Barcode maker for Font Control to generate, create GS1 128 image in Font applications.
www.OnBarcode.com
Direction
Data Matrix Generator In None
Using Barcode printer for Font Control to generate, create Data Matrix 2d barcode image in Font applications.
www.OnBarcode.com
EAN-13 Supplement 5 Printer In None
Using Barcode generator for Font Control to generate, create UPC - 13 image in Font applications.
www.OnBarcode.com
Power
QR Code ISO/IEC18004 Generation In None
Using Barcode creator for Font Control to generate, create Quick Response Code image in Font applications.
www.OnBarcode.com
Create Code39 In None
Using Barcode maker for Font Control to generate, create USS Code 39 image in Font applications.
www.OnBarcode.com
Figure 12-1. Expanded Motor block
UPC Symbol Generation In None
Using Barcode encoder for Font Control to generate, create GTIN - 12 image in Font applications.
www.OnBarcode.com
Printing Code 11 In None
Using Barcode drawer for Font Control to generate, create USD - 8 image in Font applications.
www.OnBarcode.com
Output Control Program
Reading QR Code 2d Barcode In VB.NET
Using Barcode recognizer for VS .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
QR-Code Creation In Java
Using Barcode creation for Java Control to generate, create Denso QR Bar Code image in Java applications.
www.OnBarcode.com
It would be nice if the NXT came with a control panel that allowed you to adjust the output power directly with a Try Me type of menu, but it doesn t. The NXT-G program laid out in Figures 12-2, 12-3, and 12-4 is handy for debugging the projects that follow. Pushing the right NXT button increases the motor power up to 100, and pushing the left button decreases the power to 100. A 100 power is actually a power of 100 in reverse.
QR Code Maker In .NET Framework
Using Barcode drawer for Reporting Service Control to generate, create QR Code 2d barcode image in Reporting Service applications.
www.OnBarcode.com
Encode Data Matrix In Visual Basic .NET
Using Barcode creator for VS .NET Control to generate, create ECC200 image in .NET framework applications.
www.OnBarcode.com
Figure 12-2. Output control program initalization and button detection
Creating Code 39 Full ASCII In VB.NET
Using Barcode creation for VS .NET Control to generate, create Code 3 of 9 image in VS .NET applications.
www.OnBarcode.com
Data Matrix 2d Barcode Creator In Java
Using Barcode generation for Java Control to generate, create Data Matrix image in Java applications.
www.OnBarcode.com
CHAPTER 12 BEYOND LEGO MOTORS
Scanning Barcode In .NET Framework
Using Barcode reader for VS .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
European Article Number 13 Generator In Visual Studio .NET
Using Barcode generator for .NET Control to generate, create EAN / UCC - 13 image in .NET framework applications.
www.OnBarcode.com
The power level is stored in the variable power, and the increment amount +1, 0, or 1 is stored in the variable change. When the value of power reaches +101 or 101, you need to set it back to the limit. The sign of the value of power is determined by comparing it to zero. The result of this comparison becomes the direction input for the Motor block.
GTIN - 12 Generator In Java
Using Barcode printer for Android Control to generate, create UPC Symbol image in Android applications.
www.OnBarcode.com
Reading Code-39 In Visual C#.NET
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
Figure 12-3. Output control program change and limit
Create Code128 In Java
Using Barcode creation for Android Control to generate, create Code 128B image in Android applications.
www.OnBarcode.com
Reading Code 128C In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
Figure 12-4. Output control program output and display
Lamps
By far, the simplest non-LEGO device you can connect to an NXT output port is an incandescent lamp. Lamps don t care about polarity, which means you can hook the black and white wires either way, as shown in the circuit diagram in Figure 12-5. About the only problem is that the 9V output of the NXT is an uncommon voltage for lamps. Higher-voltage lamps aren t very bright, while you can burn out lower voltage lamps by accidentally putting full power to the output.
CHAPTER 12 BEYOND LEGO MOTORS
White/Black
Black/White
Lamp
Figure 12-5. Lamp circuit Figure 12-6 shows a small lightbulb and plastic socket available at Radio Shack. The lamp is designed to operate from 7.5V, so you shouldn t set Motor block power to more than about 90 to keep from burning it out. Simply screw wires to the two terminals of the socket, and you re ready to create light on command.
Figure 12-6. 7.5V lamp in socket
Muscle Wires
Muscle Wires are a type of shape memory alloy (SMA) made from an alloy of nickel and titanium called Flexinol. Due to their crystal structure, SMAs change shape at different temperatures. Below a critical transition temperature, Muscle Wires can stretch by as much as eight percent, but they recover their original length when heated. You can use this contraction to create motion without the usual need for motors. You can supply the heat externally or you can generate it internally by passing electrical current through the wire. The time it takes to heat or cool the wire is measured in seconds, and that greatly limits the places where it can be used. The easiest way to start experimenting with Muscle Wires is to buy the Muscle Wires Project Book and Sample Kit from the Robot Shop (RB-Dyn-31). Figure 12-7 shows a basic lever demonstration built with one of the Flexinol 150LT wires that comes in the kit. The Muscle Wire runs from the base of the tower to the short side of the lever, and a bag of coins on the long side of the lever provides the force to stretch it. When the NXT output passes current through the Muscle Wire it will be heated, causing it to contract and lift the bag.
CHAPTER 12 BEYOND LEGO MOTORS
Figure 12-7. Muscle Wire lever demonstration Making good connections to a Muscle Wire is challenging because it s brittle and cannot be soldered. The kit comes with little crimp connectors that are used to fasten the Muscle Wire to an anchor and an electrical wire. Crimp the Muscle Wire to one end of the connector and then crimp a loop of solid hook-up wire the same size as a Technic peg and a length of speaker wire on the other end. While holding the Muscle Wire end of the connector with needle-nose pliers to keep it cool, solder the other end with the loop and speaker wire together. When you re done, the connector should look like Figure 12-8. Repeat this process for the other end.
Copyright © OnBarcode.com . All rights reserved.