People have access to many free PCB layout programs which are offered by PCB manufacturers. In fact, it is this software which allows for the fabrication of low-cost circuit boards in the first place. If it wasn’t available, manufacturers would not have ample time to verify and manufacture each prototype. Naturally, each program has its strengths and weaknesses, but they all perform their basic function in more or less the same manner.

PCB layout software enables the user to select a component from a vast library and place that component anywhere on the board. Thanks to the very advanced measuring capabilities, the software can show the proper placement of all components and the traces that are associated with them. Get more information on PCB layout.

Once it becomes time to connect traces, the software makes the formerly difficult process of adding vias pretty straight forward. However, it’s still a good idea to print a copy of the layout and place the components to ensure all traces and vias are present, even though most software also attempts to determine this automatically.

this software will also perform a test to see if the PCB is suitable to be manufactured. This really helps when creating multilayer PCBs where the number of components to test could seem like an impossible task. After testing, the software even has the ability to send layouts to the manufacturer. Some PCB manufacturers will offer tools like FreeDFM that will perform additional test to catch any problems with the design. Explore PCB layout options.

With PCB layout software, low-cost PCB manufacturing has truly become viable for any interested party.

When you are beginning your PCB creation, you should first place every component that needs an external connection. This can include everything from heat sinks to switches. When placing these components, be sure to place those that connect to each other as close together as possible. However, if noise may be an issue, some components should not be placed close together even though they will be connected.

Spacing is critical in PCB design. A common PCB layout technique is to allow at least 0.007 between each component on the PCB board. This spacing helps avoid components coming in contact and causing a short. If the design permits it, components should be spaced even more widely, to minimize the possibility of a short. Learn more PCB layout techniques.

If you are setting integrated circuits on your PCB, make sure that they are all facing the same direction so that pin 1 is always in the same spot. Keep the positive parts in the top or right and square pads should be utilized to determine which leads are positive. By doing this, it will be much easier to understand for the designer and anyone who has the job of repairing that PCB. For more PCB layout information, click here.

These are some tips that are commonly recommended by those who manufacture PCBs. Check with the PCB supplier to learn more specific techniques applicable to the particular PCB to be fabricated.

Begin by applying solder paste to the empty board. There are various ways to apply this paste, but it usually involves the use of a solder screen. These screens are derived from the files given by the designer, and has holes where each component will be on the circuit board. Paste is then pushed through the screen onto the board surface where the solder pads will later hold each component to the board.

Once the solder paste has been laid on the board, the next procedure is to actually place each component on the board surface with a method known as “pick and place.” In this stage, machines have been programmed with PCB design specifications and they know which compnents to grab from the dispenser and where to place them on the PCB. The solder paste will keep each component stuck to the board until it is permanently attached in the next stage. Learn more about PCB assembly.

After each component has been pasted to the board, the manufacturer will then “cook” the board. Basically, this means putting the board in an oven that will heat the board to a point where the components will be permanently stuck to the PCB, but the components won’t be damaged. There are different procedures available if the components are too sensitive to be soldered like this.

After that has been completed, it is time to inspect the board to make sure it meets all design specs. Normally, the board will go through a different machine which is taksed with testing each connection and ensuring all components are in the correct spot. Some machines can even detect instances in which components are accidentally switched by the pick and place machine. Click here to get more information on PCB assembly.

The last step in the PCB assembly process is the board testing. Some manufacturers call this “burning in.” Basically, this means putting the finished PCB into the device it was created for to test the functionality of the end product.

Here are some common electronics hobbies

Anyone who can construct or buy a printed circuit board should be able to complete many of today’s electronics hobby projects. There are quite a few PCB manufacturers that can help you on your way to creating your own PCBs. Learn how to construct your own printed circuit board.

Try out one of these fun electronics projects:

- The Mint Tin Ear Phone Amplifier

Just about everybody is using an iPod or some other electronic device nowadays. And one common problem they all share is a lack of sound quality – not with the listening device but with the headphones. Headphone speakers are tiny and usually have poor sound response. The solution to this problem does not have to be an expensive headphone or amplifier purchase. A home made compact amp has the ability to make even the most basic headphones produce studio quality sound. A great DIY electronics project, the CMoy pocket amp can fit into your average mint tin.

- Spy Bug FM Transmitter

Before we go any further, any and all unauthorized wire tapping is an illegal action and could be punished with fines or jail sentences. That being said, think about what you could do with a listening device that has a broadcast range of 800 meters. Well now you can have just that with a minimal investment in parts and labor. Forget those offers for gimmick products in the back of comic books; this easy to build gadget will have you capturing sounds and voices from 2500 feet away with any FM receiver. Attach a recorder and keep that audio to listen to later.

- Guitar Effects Boxes

There are tons of guitar effects boxes on the market, but there are people who want to create something different. Practically any effect you can dream up – phase shift, distortion, delay, reverb, chorus, flange – can be built with just a few pieces of easily available hardware. Let this marinate – It has been said that Hendrix packed his guitars with layers of homemade electronics.

- LED Yo-Yo

Maybe you want to take a trip down memory lane, and have a light-up yo-yo like you had in the ’70’s, but don’t want to spend the money on an original. You may not believe it, but it is pretty easy to create your own with a few readily available parts and a yo-yo. In an hours time, you could have a motion-activated, spinning, flashing, LED light-up yo-yo, just like you remember. You’ll spend more time re-learning your old tricks than you spent building the yo-yo.

You should be able to find instructions and parts lists, as well as instructional videos on many websites and electronics retailers. Visit a printed circuit board manufacturer’s site for any PCB design help and software packages that will help you create these custom projects. Find a printed circuit board manufacturer.

Still another primary advantage of online backup is that the duplicate copies are stored in a remote location.  This means that you do not have to carry the CDs, flash drives or hard drives to another location just to ensure that they are safe in the event that a burglary, earthquake, fire or some other kind of disaster occurs in your home or office.  In addition, disaster recovery will simply mean connecting to the provider’s server to access the files.  Some providers may even permit backup of the operating system, which makes the recovery process even easier. 

Another important benefit of online backup is the use of advanced encryption technologies to prevent illegal access to the files.  Naturally, you may also manually apply encryption methods on the backup files kept in physical media such as hard drives, flash drives, and CDs.  However, the benefit provided by the web service is that this is also done automatically.  You would not have to worry about forgetting to encrypt your backup copies because this is automatically performed even before the files are transmitted to the provider’s data center.  Another advantage is that even when an Internet connection is not available, you can still change a file because sync software will automatically alter the corresponding file in backup storage once you are back online.

Meanwhile, a possible disadvantage is that the Internet connection may slowly down substantially if the file to be processed is too big.  Some providers attempt to prevent this from happening by establishing a cap on the size of an individual file.  Also, the backup schedule can be set during those times when you are not working on the computer. Check out http://onlinefilestoragereview.com for more details

Protecting your PC from malware is becoming increasingly difficult. While it may seem a little paranoid, I’m right in saying that you can’t take your eye off the ball for one second. Even Microsoft’s internal network has been compromised on more than one occasion.

I remember the “good old days”, before the Internet and Internet threats such as Trojans, worms and viruses. In terms of computer malware life was simple back then. The main way a computer could be infected was via an infected floppy disk, the ability to detect and clean the virus was much easier. Compared to today, it used to take some time for viruses to infect a computer and slow the system down. Antivirus software back then was capable identifying and cleaning viruses before they became too much of a problem or caused much damage. Computer users were pretty clued up on how to protect themselves by scanning all external disks before copying them to a computer.

The arrival of the ‘Net’ changed all this; it provided new avenues through which viruses could move from host to host with alarming speed. Computer no longer only worry about viruses being transferred through floppy disks, but also now through emails, email attachments, peer-to-peer file sharing, IM and software downloads. Today’s viruses can easily spread through many entry points without human intervention, and take full advantage of weak points within a system or program. With technology advancing, and the advent of computers linking with other mobile devices, the potential threats also increase.

The advances in antivirus software have thankfully kept up to date with virus threats. Antivirus software is very important to a computer’s ability to fight off viruses. These products are designed to fight against malware that enters a PC through the internet as well as file servers and desktops. These programs also offer a main control feature to controls deployment, configuration and updating.

Computer users should stay cautious and follow some simple steps to protect against today’s malware threats:

1. Evaluate your current computer security system
With the threat of new viruses able to attack in an array of ways, the idea of having just one antivirus software has become outdated. You need to be sure that you have protected your entire computer system including desktops, networks, gateways and servers. You should consider a better antivirus internet security product which includes features such as antivirus, firewall, content filtering, and real-time proactive intrusion detection such as the ThreatSense technology found in ESET Nod32 . This type of defence will make it more difficult for viruses to access your systems.

2. Buy Antivirus Internet Security from reputable sources only

Only buy antivirus and internet security software that has been created by a reputable company such as Kaspersky, ESET or BitDefender antivirus. New viruses appear daily and so it is absolutely essential that you update the software regularly. Learn about the real-time scan feature and configure it to start whenever your computer starts up. This will protect your system by checking your PC each time it is turned on.

3. Always scan files and folders for viruses

Always scan programs or files no matter from where they are from.

4. Be cautious of opening files from unknown sources

Be careful when opening binary, Word, or Excel documents from unknown sources especially if they were received during an online chat session or as an attachment to an email.

5. Backup your data

Backup your data on a regular basis in case your system breaks.

Free Games – can be played at all times from anywhere in the world. When you’re at school and want to play a quick game, free flash games are the way to play online. Free online flash arcade games have become popular since players don’t need to invest any time into their playing. People look for a quick escape from their hard day at work or school with fun arcade or strategy games.

Well-liked Game genres – The shooter genre is very popular with free online flash games. These flash games may be played in real time, be turn based, or even multiplayer. Shooter games allow you to get into battles with opponents using all types of weapons. You must try to remain alive while killing all your opponents. These games have multiple stages packed with action and thrill where the player is required to triump over each challenge at every stage of the game.

Other free online flash game genres include arcade games, board games, casino and card games, sports games, motocross games, and puzzle games.

Play Marbles Online Game. Try to avoid the walls and collect all the marbles. Use the fun bouncers to jump walls.

Instructions:

Use to mouse to avoid walls.

Just give Marbles and some other Action Flash Games a try. You won’t regret it when you see how easy it is to play free online flash games from your browser.

Flash Online Games are a great way to have fun at any moment, from any place, and in any situation.

A recent development has been the use of LEDs for the backlighting of an LCD TV, previously they used CCFLs (cold cathode fluorescent lamps) which are bulky compared to LEDs. There are two versions of this technology, one where the LEDs go all the way across the back of the screen, which is the best way, or one where the LEDs are at the side and the light is directed to where it is needed, either way you get a TV much slimmer than the CCFL versions.

3D televisions are starting to come onto the market now, but the reaction to them has not been that great because the technology is so new. Don’t get me wrong, 3DTV is going to be amazing in the future, but at the moment you have to wear special glasses which ruin the experience. Currently the TVs use ‘active shutter’ technology which means the glasses need to have shutters in them that open and close many times a second, that gives the experience a strange flickering effect, plus reports suggest that the 3D effect on the TVs won’t work if you sit more than a few feet away from the unit.

Remember these are the first generation of 3DTVs though, so the people who like to have the newest toys will buy these models, then the rest of us will wait for them to improve the technology and buy the later versions of them. There are one or two companies working on commercial applications of 3D viewing without having to wear glasses, so hopefully that will filter down into our TVs soon.

OLEDs (organic light emitting diodes) are another technology which we can look forward to, although it has been in the pipeline for years and they can’t seem to get above a 13 inch screen at the moment. They are still working on it though to make larger screens which we can have in our homes, but if they do crack the current problems then the resulting TV will be just millimeters thick! So the future of TV is certainly interesting, I can’t wait to see what things will be like in 5 years time…

If you want a huge LED LCD TV then at the moment something like the Samsung UN55B8000 is popular.