birt barcode open source Load White/Black Com NC NO + 12V in Font

Maker QR in Font Load White/Black Com NC NO + 12V

Load White/Black Com NC NO + 12V
Denso QR Bar Code Maker In None
Using Barcode encoder for Font Control to generate, create QR image in Font applications.
www.OnBarcode.com
Encoding ECC200 In None
Using Barcode printer for Font Control to generate, create Data Matrix image in Font applications.
www.OnBarcode.com
Black/White
PDF-417 2d Barcode Maker In None
Using Barcode generator for Font Control to generate, create PDF-417 2d barcode image in Font applications.
www.OnBarcode.com
Create Code128 In None
Using Barcode creation for Font Control to generate, create Code-128 image in Font applications.
www.OnBarcode.com
Figure 12-15. Basic relay circuit
EAN-13 Supplement 5 Maker In None
Using Barcode drawer for Font Control to generate, create EAN-13 Supplement 5 image in Font applications.
www.OnBarcode.com
Painting QR In None
Using Barcode generator for Font Control to generate, create QR Code image in Font applications.
www.OnBarcode.com
CHAPTER 12 BEYOND LEGO MOTORS
Make Code 3 Of 9 In None
Using Barcode encoder for Font Control to generate, create Code 39 Full ASCII image in Font applications.
www.OnBarcode.com
Generating MSI Plessey In None
Using Barcode printer for Font Control to generate, create MSI Plessey image in Font applications.
www.OnBarcode.com
Caution Although you could use a relay to control household electricity, we strongly advise you to stay away
QR Code Creation In .NET Framework
Using Barcode printer for Reporting Service Control to generate, create Quick Response Code image in Reporting Service applications.
www.OnBarcode.com
Encode QR-Code In None
Using Barcode generator for Online Control to generate, create QR image in Online applications.
www.OnBarcode.com
from it. Even the slightest mistake can be lethal. Stay safe by sticking with devices that operate from low voltages, and preferably from batteries.
QR Code 2d Barcode Printer In .NET
Using Barcode printer for ASP.NET Control to generate, create QR-Code image in ASP.NET applications.
www.OnBarcode.com
Data Matrix ECC200 Generation In Java
Using Barcode generation for Android Control to generate, create Data Matrix ECC200 image in Android applications.
www.OnBarcode.com
One of the most important characteristics of a relay is its coil voltage. Just like with lightbulbs, 9V is a fairly uncommon voltage for relay coils. Even if you could find a 9V relay, the output voltage of an NXT with weak batteries would be too low to operate it. Your best bet is to buy a 6V relay and operate the NXT output with less than full power. Limit the power value in the Motor block to 80 to keep the voltage on the relay coil around 6V. The Potter and Brumfield KRPA-11DG-6 is an excellent choice for a relay, but it s expensive and requires an additional octal socket that will add a lot of cost to your project. A good alternative is the Potter and Brumfield PE014006, which is substantially smaller and cheaper. It s designed for mounting on a printed circuit board, but you can solder wires directly to the pins, as shown in Figure 12-16.
Data Matrix Creator In None
Using Barcode generation for Office Word Control to generate, create DataMatrix image in Word applications.
www.OnBarcode.com
Barcode Maker In .NET Framework
Using Barcode encoder for .NET Control to generate, create Barcode image in .NET framework applications.
www.OnBarcode.com
Figure 12-16. Relay Relays are good for operating devices that were originally designed for automotive or marine applications. The NXT is a real weakling compared with equipment that operates at up to 13.8VDC with several amps of current. An automobile vacuum cleaner could be the basis of your own robotic vacuum cleaner. Portable air compressors can supply a constant source of pressure for pneumatics. Boat bilge pumps, as shown in Figure 12-17, can move liquids in hydroponic gardens or water fountains. It s more economical to run these devices with power supplies that deliver 12V from household electricity, but it s much safer to use batteries.
PDF417 Generation In None
Using Barcode encoder for Office Word Control to generate, create PDF-417 2d barcode image in Microsoft Word applications.
www.OnBarcode.com
GS1-128 Generator In VB.NET
Using Barcode creator for .NET framework Control to generate, create GS1 128 image in .NET applications.
www.OnBarcode.com
CHAPTER 12 BEYOND LEGO MOTORS
Printing DataMatrix In None
Using Barcode maker for Online Control to generate, create ECC200 image in Online applications.
www.OnBarcode.com
Drawing PDF-417 2d Barcode In .NET
Using Barcode maker for ASP.NET Control to generate, create PDF417 image in ASP.NET applications.
www.OnBarcode.com
Figure 12-17. Relay control of a 12V bilge pump
European Article Number 13 Creation In VS .NET
Using Barcode creator for .NET Control to generate, create EAN / UCC - 13 image in Visual Studio .NET applications.
www.OnBarcode.com
EAN 128 Generation In Java
Using Barcode creator for Java Control to generate, create EAN 128 image in Java applications.
www.OnBarcode.com
Doubling Outputs
Diodes are the one-way valves of the electrical world. The physical package and circuit symbol are shown in Figure 12-18. They have two leads like a resistor, but unlike the resistor the leads are not interchangeable. A diode has an anode and a cathode lead, and a line is painted on the cathode end of the part. Electrical current can flow only from the anode to the cathode. In that direction, the diode looks about like a solid piece of wire. However, in the reverse direction, the diode looks like an open circuit.
Anode
Cathode
Figure 12-18. Diode and circuit symbol If you connect a diode in series with a lightbulb, as shown in Figure 12-19, it will light only when the current flow is in one direction and not the other. Because you can control the polarity of the NXT output using the direction input on the Motor block, the bulb will light only in forward or reverse, but not both.
CHAPTER 12 BEYOND LEGO MOTORS
White/Black
1N4002 Lamp
Black/White
Figure 12-19. Diode and lamp circuit diagram An inexpensive way to get small lights is to cut apart long strings of tiny Christmas tree lights. Up to 50 of these lights are connected in series, which means each light only operates on a few volts. You should only set the power in the Motor block to a low value such as 20, or you ll burn out the light. Figure 12-20 shows how to connect the diode in series with the light. It s a good idea to solder the connections to make them more permanent.
Figure 12-20. Christmas tree light with diode Figure 12-21 shows how you can cover the entire diode and the connections with heat shrink tubing to insulate and protect them.
Figure 12-21. Heat shrink tubing covers the diode and connections
CHAPTER 12 BEYOND LEGO MOTORS
The whole idea of connecting a diode in series might sound pretty useless, but there is a method to the madness. If you connect two lights to the same output with diodes facing in opposite directions, like the schematic in Figure 12-22, one lamp will light in forward and the other in reverse. In a way, you ve doubled the number of NXT outputs because you can control six different lights. The only drawback is that you can light one light per output at a time.
Copyright © OnBarcode.com . All rights reserved.